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EXCITER
User Manual
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Yamaha EXCITER 135, EXCITER User Manual

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Owner's / Operator's Manual
TO THE OWNER
CAUTION:
WARNING
YAMAHA MOTOR CORPORATION, U.S.A.
Because Yamaha has a policy of con­tinuing product improvement, this prod­uct may not be exactly as described in this Owner’s Manual. Specifications are subject to change without notice.
This manual should be considered a permanent part of this Jet Boat and should remain with it even if the boat is subsequently sold.
IMPORTANT MANUAL INFORMATION:
The Safety Alert Symbol means ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!
________________
Failure to follow WARNING instruc­tions could result in severe injury or death to the machine operator, a bystander, or a person inspecting or repairing the Jet Boat.
_______________
A CAUTION indicates special pre­cautions that must be taken to avoid damage to the Jet Boat.
NOTE:_________________________
A NOTE provides key information to make procedures easier or clearer.
EXCITER SE JET BOAT (EXS1200X)
OWNER’S/OPERATOR’S MANUAL
© 1998 by Yamaha Motor Corporation, U.S.A.
1st Edition, July 1998
All rights reserved. Any reprinting
or unauthorized use
without the written permission of
Yamaha Motor Corporation,
U.S.A. is expressly prohibited.
Printed in U.S.A.
LIT-18626-03-53
S
AFETYINFORMATION
1
T
ROUBLESHOOTING
F
EATURES
M
AINTENANCE
& S
PECIALPROCEDURES
C
ONSUMERINFORMATION
& F
UNCTIONS
O
PERATION
& C
ARE
2
3
4
5
6
Chapter 1

SAFETY INFORMATION

IDENTIFICATION NUMBER RECORDS . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
Primary I.D. Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
Hull Identification Number (H.I.N.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
Engine Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
IMPORTANT LABELS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
SAFETY INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7
Limitations On Who May Operate the Jet Boat . . . . . . . . . . . . . . . . . . .1-7
Required Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8
Additional Equipment Recommendations . . . . . . . . . . . . . . . . . . . . . . .1-8
Apparel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9
Operational Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9
Jet Boat Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-11
Cruising Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-12
Night Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-13
Waterskiing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-14
BASIC BOATING RULES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-15
Rules of the Road . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-15
Steering and Sailing and Sound Signals . . . . . . . . . . . . . . . . . . . . . . .1-15
Rules When Encountering Vessels . . . . . . . . . . . . . . . . . . . . . . . . . . .1-16
Other Special Situations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-17
TO GET MORE BOATING SAFETY INFORMATION . . . . . . . . . . . . . . . . . .1-19
Boating Education . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-19
ACCIDENT REPORTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-20
ENJOY YOUR JET BOAT RESPONSIBLY . . . . . . . . . . . . . . . . . . . . . . . . . .1-20
➀
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AFETYINFORMATION
1
IDENTIFICATION
NUMBER RECORDS
Record your Primary I.D., H.I.N., and engine number in the spaces provided to assist you in ordering spare parts from your Yamaha Jet Boat dealer.Also record and keep these I.D. numbers in a separate place in case your Jet Boat is stolen.
PRIMARY I.D. NUMBER
The Primary I.D.number is stamped on a label ➀attached to the inside of the engine compartment.
➂
➁
HULL IDENTIFICATION NUMBER (H.I.N.)
The H.I.N.➁ is stamped into the hull on the right rear corner.
ENGINE SERIAL NUMBER
The Engine Serial Number is stamped on a label ➂attached to the back side of the electrical box.
1-1
S
1
LOCATION
AFETYINFORMATION
IMPORTANT LABELS
15 14
17
16
18
2
1
4 3
1515
5
9
6 7
8
10 11
12
13
1-2
➀
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AFETYINFORMATION
IMPORTANT LABELS
1
➁
➃
➂
1-3
➄
➅
➆
1
S
AFETYINFORMATION
IMPORTANT LABELS
➇
➈
1-4
S
AFETYINFORMATION
1
10
11
12
IMPORTANT LABELS
13
1-5
14
15
1
S
AFETYINFORMATION
IMPORTANT LABELS
16
17
18
1-6
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AFETYINFORMATION
1
SAFETY
INFORMATION
WARNING
SEVERE INJURY OR DEATH MAY RESULT IF YOU IGNORE ANY OF THE FOLLOWING SAFETY INFOR­MATION.
● Before operating the Jet Boat, read this entire manual, the Operation Instruction card, and all warning labels on the Jet Boat.Also view the Basic Orientation video tape.These materials should give you an under­standing of the boat and its opera­tion.
Never allow anyone to operate this Jet Boat until they too have read this Owner's Manual, the Operation Instruction card, all warning labels, and, if possible, watched the video.
LIMITATIONS ON WHO MAY OPERATE THE JET BOAT
● This boat is recommended only for operators 16 and older with a valid motor vehicle license.
Even though a motor vehicle opera­tor's license is not required for Jet Boat operation in most states, it is one indicator that the operator has previously demonstrated a reason­able degree of maturity, responsibil­ity, and good judgment.
A responsible adult must supervise operation of this boat by minors. Many states have minimum age and edu-
________________
cation requirements. Always check state and local boating laws before you operate the Jet Boat.
● The operator is responsible for the safety of his or her passengers as well as his or her own personal safety.
● The operator is responsible for the safety of his or her passengers as well as his or her own personal safety.
● Your Jet Boat is designed to carry the operator, up to four passengers, and cargo, as long as the total weight does not exceed the maxi­mum load capacity. Never have more than five people on board. Weight distribution affects perfor­mance. Keep weight in the boat low and evenly distributed.Remove any unnecessary cargo and store it on shore.
ATTENTION: Maximum load capacity: 930 lb
(421 kg) Includes weight of operator ,passen-
gers, and any cargo.
__________________
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1
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AFETYINFORMATION
REQUIRED EQUIPMENT
The U.S. Coast Guard (USCG) has regulations which describe minimum standards of safety. You must comply with these regulations, which apply to boats like your Jet Boat which are less than 26 feet long.
● Personal Flotation Devices (PFDs): Type I, II, or III as required for all people on board (see “Apparel” for more information), plus at least one Type IV (throwable type).
● Fire Extinguisher : At least one B-1 type hand-held portable fire extinguisher.
● Visual Distress Signals: Having USCG-approved visual dis­tress signals on board is recom­mended under all circumstances, and required if you will be operating on coastal waters, the Great Lakes, territorial seas and waters connected to them. Contact your dealer or the Coast Guard for more information.
● Sound Signalling Device: Your Jet Boat is equipped with a horn which can be used to signal other boats. See “Rules of the Road” for more information.
ADDITIONAL EQUIPMENT RECOMMENDATIONS
The following equipment can help make your boating experience safer and more enjoyable:
● Moor ing fenders and lines
● Anchor with suitable line (a
“Danforth” type anchor and line that is at least 6-times the depth of the water where you will drop anchor are recommended)
● Manual-type bilge pump
● First Aid kit
● Waterproof Flashlight with extra
batteries
● Tool kit with assorted screwdrivers, pliers, wrenches (including metric sizes), and electrical tape
● Oar or paddle (look for one with a boat hook on the other end)
● Spare parts, such as an extra set of spark plugs and fuses
● Navigation charts for the waters where you will be boating
● Tow rope
● Navigation Lights:
Your Jet Boat is equipped with nav­igation lights for use between sun­set and sunrise, and during periods of reduced visibility, such as fog. Be sure these lights are working and are turned on when necessary (see page 2-12 and 3-9 for more infor­mation).
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AFETYINFORMATION
1
APPAREL
● Because of the drowning hazards associated with water sports, the operator and passengers must always wear a U.S. Coast Guard­approved vest-type personal flotation device (PFD). Be sure the PFD is properly fitting and in good condition.
● You should consider wearing slip­resistant deck shoes or water shoes for more secure footing while boating.
● Waterskiers and others engaging in water sports behind the boat must wear a wetsuit. A wetsuit can help protect against strong streams of water from the jet nozzle or impact from the water surface.These haz­ards could cause severe injuries to certain body orifices (rectum and vagina).
● You might also consider gloves designed for water sports to help protect hands during operation, as well as while launching and docking your boat.
● You may want to consider eye pro­tection. Water spray could get in your eyes in some circumstances which could affect your vision.
OPERATIONAL REQUIREMENTS
● NEVER operate the boat after con­suming alcohol or taking drugs.
● Depending upon operating condi­tions, you may consider wearing a wetsuit while boating. A wet suit can help protect against hypothermia (low body temperature) when there is water spray coming into the boat, particularly if you are operating in cold water or air temperature.
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1
● Always perform the pre-operation checks on page 3-4 before operat­ing to be sure your equipment is working properly.
● The operator should always attach the engine stop switch lanyard (cable) to his PFD so that the engine will stop if the operator acci­dentally leaves the helm. Failure to attach the lanyard could result in a runaway boat if the operator is ejected.
Be sure the lanyard is not wrapped around the steering wheel or tan­gled in the controls which would pre­vent the lanyard from pulling away.
AFETYINFORMATION
● Passengers must always sit in a designated seating area, place feet on the deck, and use the hand grips provided while the boat is in motion.
To prevent accidental starting of the engine, always remove the lanyard from the stop switch when the engine is not running.
➀
➂
➁
➀ Engine stop switch ➁ Engine stop switch lanyard ➂ Lanyard clipped to PFD
UNDERWAY SEATING POSITIONS
MAXIMUM 5 PERSONS
● Always watch carefully for swim­mers. Stay away from swimming areas. Swimmers are hard to see and you could accidentally hit someone in the water.
● Avoid being hit by another boat! Always watch for traffic; other boaters may not be watching for you. If they don't see you, or you maneuver more quickly than other boaters expect, you risk a collision.
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AFETYINFORMATION
1
● Maintain a safe distance from other boats or watercraft, and also watch for boat's ski ropes or fishing lines. Obey the "Rules of the Road" (see page 1-15), and be sure to check behind you before making a turn.
● If you are pregnant or in poor health, ask your doctor's advice on whether it is safe for you to r ide this Jet Boat.
● Do not attempt to modify this Jet Boat! Modifications to your boat may reduce safety and reliability, and may make the boat illegal for use.
JET BOAT CHARACTERISTICS
● Jet thr ust turns the Jet Boat. If you are going faster than idle speeds, you must use engine power to turn. If you pull the throttle lever back to idle or shut off the engine, you can­not turn – even if you turn the wheel. Practice turning in an open area without obstructions until you have a good feel for this maneuver.
Yamaha Jet Boats are water-jet pro­pelled.The jet pump is directly con­nected to the engine. This means that jet thrust will produce some boat movement whenever the engine is running. The Jet Boat has a "neutral" position, but since the Jet Boat is always producing thrust while the engine is running, some forward or reverse movement may occur.
● Boats, including your Jet Boat, do not have brakes. Pull the throttle lever back to idle or stop the engine and allow water resistance to slow the boat down. Remember, howev­er, that y ou have no steering control without throttle. Do not use Reverse to try to slow down from speed, because you could be ejected, the boat could be flooded, or damage could occur to the shift mechanism.
Reverse can be used to slow down or stop during slow-speed maneu­vering, such as when docking. Once the engine is idling, shift to Reverse and gradually increase engine speed to slow down or stop.
● Keep the following in mind when using reverse:
Reverse is for launching and low speed maneuvering only. Shift only when the engine is idling or off. Do not shift while applying throttle. Make sure there are no obstacles or people behind you before shifting into reverse.
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1
● Keep hands, feet, hair, and all other parts of your body and clothing away from jet intakes on the bottom of the hull while engine is running because they could be caught in the intake. Stop the engine and remove the lanyard before removing any debris or weeds which may have collected around the jet intake.
Refer to the Jet Pump Clean-Out procedures on page 5-4 for further information.
AFETYINFORMATION
CRUISING LIMITATIONS
● Do not try to jump other boat's wakes or follow another boat or watercraft too closely or you will increase your chance of colliding with other boats. Do not go over a water-ski jump, or attempt any other kind of jumping maneuver with the boat, since you risk injuring yourself or damaging your Jet Boat.
● Watch for dangerous underwater obstacles when boating in shallow water.Never operate in water that is less than 3 ft (90 cm) deep.
● Do not board from the rear, use swim platform, or swim behind boat when the engine is running. Strong streams of water from the jet nozzle can be dangerous and can result in serious injury when directed at body orifices (rectum and vagina).
● Never insert any object in the jet pump outlet.
3 FT (90 CM)
● Do not operate the boat in rough water, bad weather or when visibili­ty is poor; this may lead to an acci­dent causing injury or death. Operation in rough water can crack the hull or damage internal parts.
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AFETYINFORMATION
1
Be alert to the possibility of adverse weather.Take note of marine weath­er forecasts and the prevailing weather conditions before setting out in your Jet Boat.
● Leave a “float plan” with a responsi­ble person on shore.Tell where you plan to go and when you plan to arrive, and provide a description of your boat. Advise this person if your plans change and also when you arrive to prevent false alarms. A sample float plan is included on page 6-6.
NIGHT OPERATION
● When using your Jet Boat before dawn and after dusk, you must ha v e both bow and stern lights operating. When at anchor in the dark, the stern light must be lit.See page 2-12 for instructions.
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1
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AFETYINFORMATION
WATERSKIING
You can use the Jet Boat to tow a waterskier, using the tow eye provided. Do not attach the tow rope to any other location on the boat.
It is the boat operator’s responsibility to be alert to the safety of the waterskier and others. Know and follow all state and local waterskiing regulations in effect for the waters in which you will be operating. The following are some important considerations for minimiz­ing risks while waterskiing:
● Wear an approved PFD, preferably a brightly colored one so boat oper­ators can see you.
➀
➁
the boat. A wetsuit can also help protect against hypothermia (low body temperature) and abrasions.
● A second person should be on board as an observer to watch the skier; in most states it is required by law. Let the skier direct the opera­tor’s control of boat speed and direction with hand signals. The observer should sit securely in the seat, hold onto the handles or straps provided, and place feet firm­ly on the floor for proper balance while facing to the rear to watch the skier’s hand signals and condition. The front, port-side seat has a han­dle for a backward-facing obser ver.
● When preparing to pull a skier, operate the Jet Boat at the slowest possible speed until the boat is well away from the skier and slack in the tow rope is taken up. Be careful that the rope is not looped around any­thing.After checking that the skier is ready and there is no traffic or obstacles, apply enough throttle to raise the skier.
➂
➀ PFD ➁ Gloves ➂ Wetsuit
● Wear a wetsuit when waterskiing to
protect against injury to body orifices (rectum and vagina) from impact with the water surface if you fall or strong streams of water from the boat’s jet nozzles while in the water behind
● Make smooth, wide turns. The Jet Boat is capable of very sharp turns which could exceed the abilities of the skier. Keep the skier at least 150 feet (49m), about twice the dis­tance of a standard tow-rope from any potential hazard.
● Be alert to the hazard from the han­dle snapping back into the boat when the skier falls or is unable to get up on the skis.
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AFETYINFORMATION
1
BASIC BOATING
RULES
RULES OF THE ROAD
Your Yamaha Jet Boat is legally consid­ered a power boat.Operation of the Jet Boat must be in accordance with the rules and regulations governing the waterway on which it is used.
Just as there are rules which apply when you are driving on streets and highways, there are waterway rules which apply when you are operating your Jet Boat. These rules are used internationally, and are also enforced by the United States Coast Guard and local agencies.You should be aware of these rules, and follow them whenever you encounter another vessel on the water.
Several sets of rules prevail according to geographic location, but are all basi­cally the same as the International Rules of the Road.The rules presented here in your Owner's Manual are con­densed, and have been provided for your convenience only. Consult your local U.S. Coast Guard Auxiliary or Department of Motor Vehicles for a complete set of rules governing the waters in which you will be using your Jet Boat.
STEERING AND SAILING RULES AND SOUND SIGNALS
Whenever two vessels on the water meet one another, one vessel has the right-of-way; it is called the "stand-on" vessel.The vessel which does not have the right-of-way is called the "give-way or "burdened" vessel. These rules determine which vessel has the right­of-way, and what each vessel should do.
Stand-On Vessel
The vessel with the right-of-way has the duty to continue its course and speed, except to avoid an immediate collision. When you maintain your direction and speed, the other vessel will be able to determine how best to avoid you.
Give-Way V essel
The vessel which does not have the right-of-way has the duty to take posi­tive and timely action to stay out of the way of the Stand-On vessel. Normally, you should not cross in front of the ves­sel with the right-of-way. You should slow down or change directions briefly and pass behind the other vessel.You should always move in such a way that the operator of the other vessel can see what you are doing.
The General Prudential Rule regarding the right-of-way is that if a collision appears unavoidable, neither boat has the right-of-way. Both boats must avoid the collision.
In other words, follow the standard rules except when a collision will occur unless both vessels try to avoid each other. If that is the case, both vessels become "Give-Way" vessels.
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1
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AFETYINFORMATION
RULES WHEN ENCOUNTERING VESSELS
There are three main situations which you may encounter with other vessels which could lead to a collision unless the Steering Rules are followed:
Meeting (you are approaching another vessel head-on)
Crossing (y ou are tra velling across the other vessel's path)
Overtaking (you are passing or being passed by another vessel)
In the following illustration, your Jet Boat is in the center. You should give the right-of-way to any vessels shown in the white area (you are the Give­Way vessel). Any vessels in the shad­ed area must yield to you (they are the Give-Way vessels). Both you and the meeting vessel must alter course to avoid each other.
Meeting
If you are meeting another power ves­sel head on, and are close enough to run the risk of collision, neither of you has the right-of-way.Both of you should alter course to avoid an accident. You should keep the other vessel on your port (left) side.This rule doesn't apply if both of you will clear one another if you continue on your set course and speed.
Crossing
When two power driven vessels are crossing each other's path close enough to run the risk of collision, the vessel which has the other on the star­board (right) side must keep out of the way of the other. If the other vessel is on your right, you must keep out of its way; you are the Give-Way vessel. If the other vessel is on your port (left) side, remember that you should main­tain course and direction, provided the other vessel gives you the right-of-way as it should.
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AFETYINFORMATION
1
STAND-ON-VESSEL
GIVE-WAY-VESSEL
Overtaking
If you are passing another vessel, you are the "Give-Way" vessel.This means that the other vessel is expected to maintain its course and speed. You must stay out of its way until you are clear of it. Likewise, if another vessel is passing you, you should maintain your speed and direction so that the other vessel can steer itself around you.
Narrow Channels and Bends
When navigating in narrow channels, you should keep to the right when it is safe and practical to do so. If the oper­ator of a power-driven vessel is prepar­ing to go around a bend that may obstruct the view of other water ves­sels, the operator should sound a pro­longed blast on the horn (4 to 6 sec­onds). If another vessel is around the bend, it too should sound the horn. Even if no reply is heard, however, the vessel should still proceed around the bend with caution.
Fishing Vessel Right-of-Way
All vessels which are fishing with nets, lines or trawls are considered to be "fishing vessels" under the International Rules. Vessels with trolling lines are not considered fishing vessels. Fishing vessels have the right­of-way regardless of position. Fishing vessels cannot, however, impede the passage of other vessels in narrow channels.
GIVE-WAY
VESSEL
OTHER SPECIAL SITUATIONS
There are three other rules you should be aware of when driving your Jet Boat around other vessels.
Sailing Vessel Right-of-Way
Sailing vessels should normally be given the right-of-way. The exceptions to this are:
1. When the sailing vessel is overtak­ing the power-driven vessel, the power-driven vessel has the right­of-way.
2. Sailing vessels should keep clear of any fishing vessel.
3. In a narrow channel, a sailing vessel should not hamper the safe pas­sage of a power-driven vessel which can navigate only in such a channel.
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1
MAIN CHANNEL
"7"
C "1"
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AFETYINFORMATION
"6"
RB "L"
or
RG "L"
"5"
"3"
"1"
Proceeding toward head of
navigation from seaward
SECONDARY CHANNEL BUOYS
STARTS NEW NUMBERING SYSTEM
CAN BUOY
Odd number.Leave to port.
C "1"
SECONDARY CHANNEL
"4"
"A"
"2"
MAIN CHANNEL BUOYS
"1" "3" "5" "7"
N "2"
LIGHTED BUOY (Port Hand)
Odd number,increasing toward head of naviga­tion. Leave to port (left) proceeding upstream.
White Light
OR
old new
"2" "4" "6"
LIGHTED BUOY (Starboard Hand)
Even number,increasing toward head of naviga­tion. Leave to starboard (right) proceeding up­stream.
White Light
OR
old new
"A"
LIGHTED SAFE WATER BUOY
No number.Marks midchannel, pass on either side. Letter has no lateral significance, used for identification and location purposes.
White Light
OR
Green Light
Red Light
Top Mark
White Light
N "2"
OR
old
NUN BUOY
Even number.Leave to starboard.
No change
new
old new
RB "L" LIGHTED PREFERRED CHANNEL TO
No number. Topmost band red - preferred channel is to left of buoy.Letter has no lateral significance, used for identification and location purposes.
old new
PORT BUOY
Red or White Light
OR
1-18
RB "L"
Red Light
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AFETYINFORMATION
1
Reading Buoys and Other Markers
The waters of the United states are marked for safe navigation by the later­al system of buoys. Simply put, buoys and markers have an arrangement of shapes, colors, numbers and lights to show which side of the buoy a boater should pass on when navigating in a particular direction. The markings on these buoys are oriented from the per­spective of being entered from seaward (the boater is going towards the port). This means that red buoys are passed on the starboard (right) side when pro­ceeding from open water into port, and black buoys are to por t left) side. When navigating out of port, your position with respect to the buoys should be reversed; red buoys should be to port and black buoys to starboard.
Many bodies of water used by boaters are entirely within the boundaries of a particular state. The Uniform State Waterway Marking System has been devised for these waters. This system uses buoys and signs with distinctive shapes and colors to show regulatory or advisory information.These markers are white with black letters and orange borders. They signify speed zones, restricted areas, danger areas, and general information.
Remember, markings may vary by geographic location. Always consult local boating authorities before driving your Jet Boat in unfamiliar waters.
TO G E T MORE BOATING
SAFETY INFORMATION
Be informed about boating safety. Additional publications and information can be obtained from many organiza­tions, including the following:
United States Coast Guard
Consumer Affairs Staff (G-BC)
Office of Boating, Public, and
Consumer Affairs
U.S. Coast Guard Headquarters
Washington, D.C.20593-0001
Boating Safety Hotline:
1-800-368-5647
BOATING EDUCATION
This manual cannot provide complete training on all aspects of boat opera­tion. All operators of this Jet Boat are encouraged to seek additional training on boat handling and safety. Many states require operators under the age of 18 to be licensed in small boat oper­ation and offer training and certification courses.
Many different agencies and organiza­tions offer boating training and safety. Some of these are listed below. Check your local telephone directory for the telephone numbers and addresses in your area.
● U.S. Coast Guard Auxiliary
● Amer ican Red Cross
● National Fishing and Wildlife
Foundation
● Power Squadrons
● Spor ts Fishing Institute
● State Boating Offices
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AFETYINFORMATION
ACCIDENT
REPORTING
Boat operators are required by law to file a Boating Accident Report with their state boating law enforcement agency if their boat has been involved in any of the following boating acci­dents:
1. There is loss of life or probable loss of life.
2. There is personal injury which requires medical attention beyond first aid.
3. There is damage to boats or other property which exceeds $500.00.
4. There is complete loss of a boat.
Contact local law enforcement person­nel if a report is necessar y.
ENJO Y YOUR JET
BOAT RESPONSIBLY
You share the areas you enjoy when operating your Jet Boat with others and with nature. So your enjoyment includes a responsibility to treat other people, and the lands, waters, and wildlife with respect and courtesy.
When you use your Jet Boat responsi­bly, with respect and courtesy for oth­ers, you help ensure that our water­ways stay open for the enjoyment of a variety of recreational opportunities.
1-20
Chapter 2
FEATURES & FUNCTIONS
LOCATION OF MAIN COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
OPERATION OF CONTROLS AND OTHER FUNCTIONS . . . . . . . . . . . . . .2-5
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
Engine Stop Switch Lanyard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
Main Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
Throttle Lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
Shift Lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7
Choke Knob . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8
Fuel Tank Filler Cap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8
Fuel Cock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-9
Gauges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-9
Overheat Warning System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-11
Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-12
Engine Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-13
Storage Compartments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-14
F
EATURES
& F
UNCTIONS
LOCATION OF MAIN COMPONENTS
2
17
10
12
14
3
13
16
15
1
2
4
11
7
9
5
8
14
6
12
13
16
Main Features:
1
Fuel Tank Oil Tank
2 3
Blower Motor/Vent outlet Battery
4
Flush Attachment
5
Fuel Filter
6 7
Electrical Box
8
Ignition Coil Holder
9
High Tension Cords
2-1
Spark Plugs
10
Silencer Cover
11
Hood Supports
12
Engine Compartment Vent
13
Engine Compartment Drain Plugs
14
Muffler Box
15
Fuel Tank Compartment Air Ventilation
16
Fuel Tank Compartment Drain Plug
17
2
F
EATURES
& F
UNCTIONS
1 2
3 4
5
6
3
5
16
7
7
3
6
5
5
5
11
5
3
16
5
7
5
3
13
5
6
8
10
16
9
6
14
2-2
15
12
F
LOCATION OF MAIN COMPONENTS:
Bow light
1 2
Bow eye
3
Storage compartments
4
Fire extinguisher holder
5
Grab handles
6
Cleats
7
Fuel system inspection access cover
8
Fuel cock
9
Throttle
10
Shifter
11
Stern light storage
12
Stern light socket
13
Ski tow hook
14
Jet pump cleanout access panel
15
Pump cleanout interlock switch
16
Deck drains
EATURES
& F
UNCTIONS
2
2-3
F
2
EATURES
& F
UNCTIONS
LOCATION OF MAIN COMPONENTS
8
Speedometer
1
Tachometer
2
Low oil warning light
3
Steering wheel
4
Mirror
5
3
2
9
6
2
7
4
4
1
3
6
Switches and breakers
6
Fuel gauge
7
Lanyard switch
8
Ignition switch/ key
9
Choke
10
10
5
1
3
8
Bilge outlet
1
Clean-out compartment drain
2
Trailer strap eyes
3
Pump gate
4
Jet pump
5
2-4
5
6
7
Steering nozzle
6
Ride plate
7
Hull drain plug
8
Speedometer pick-up
9
9
8
F
EATURES
& F
UNCTIONS
2
OPERATION OF
CONTROLS AND
OTHER FUNCTIONS
STEERING
➀
➀ Steering wheel
Your Jet Boat can be steered by turn­ing the steering wheel the same direc­tion you wish to travel, to the right or left. When the wheel is turned, the angle of the jet (output) nozzle at the rear of the craft is changed, and the change in direction of the nozzle changes the direction of the boat accordingly. Because the strength of the jet flow output (thrust) will deter­mine the speed and direction of a turn, the throttle must always be opened above idle when making a turn, except at idle speed. More thrust will turn the boat more sharply.
Because boats steer from the stern (rear), the stern of the boat swings out in the opposite direction of your turn. If you turn to the starboard (right), for example, the stern of the boat will swing to the left. Keep this in mind when navigating near a person in the water, such as a down skier, or an obstacle, such as a dock.
WARNING
You need engine power to turn. Pulling the throttle lever back to idle when traveling faster than idle speeds or shutting off the engine can cause you to hit an obstacle y ou are attempting to avoid, even if you are turning the steering wheel.
ENGINE STOP SWITCH LANYARD
The lock plate on the end of the lanyard must be attached to the engine stop switch for the engine to run. The lan­yard must be attached to a secure place on the operator’s personal flota­tion device (PFD). Should the operator fall overboard or leave the helm, the lanyard will pull out the lock plate, stopping ignition to the engine.This will prevent the boat from running away under power.
________________
➀
➁
➂
➀ Engine stop switch ➁ Lock-plate ➂ Lanyard
2-5
F
WARNING
WARNING
2
● Always attach the engine stop switch lanyard to your personal flotation device (PFD) before starting the engine. Failure to attach the lanyard could result in a runaway boat if the operator is ejected.
● Do not attach the lanyard to cloth­ing that could tear loose. Do not route the lanyard in such a way that it could become entangled, preventing it from functioning.
● Avoid accidentally pulling the lanyard during normal operation. Once the engine has stopped you have no steering control of the boat which could result in an accident. Also, without engine power, the boat could slow rapid­ly from planing speed.This could cause people and objects in the boat to be thrown forward, which could cause injury.
EATURES
& F
UNCTIONS
OFF:
Ignition circuits are switched off. The engine cannot be started but other switches will operate. (The key can be removed.)
ON:
Ignition circuits are switched on. (The key cannot be removed).
START:
The starter motor will turn to star t the engine. (When the key is released, it returns automatically to “ON.”)
NOTE: The engine will not start when the engine stop switch lany ar d loc k plate is removed from the engine stop switch. The starter motor will turn over without the lanyard attached.
_________________
THROTTLE LEVER
1
MAIN SWITCH
There is a main switch for the engine. The main switch controls the ignition and electrical circuits as follows:
➀
➀ Main switch
2
Throttle lever
1 2
Idle
3
Full speed
________________
Before starting the engine, always check the operation of the throttle lever. It should move smoothly through its full range of operation. Otherwise, there could be loss of control and an accident.
2-6
3
CAUTION:
WARNING
F
EATURES
& F
UNCTIONS
2
Moving the throttle lever forward increases engine speed. Move the throttle to the idle position before using the shift lever.
SHIFT LEVER
________________
SEVERE INJURY OR DEATH MAY RESULT IF YOU IGNORE ANY OF THE FOLLOWING.
● Check throttle, steering and shift lever for proper operation before starting the engine.
● Shift into neutral before starting engine.
● Put throttle lever in idle position before shifting.
● Make sure there are no people or objects behind the boat before starting or shifting into Reverse.
● When operating in Reverse, go slowly. Do not open the throttle more than half. Otherwise, the boat may become unstable, which could result in loss of con­trol and an accident.
● Do not shift into Reverse while traveling at planing speeds. Loss of control, boat swamping, or damage to the boat could occur.
from cranking if the shift lever in not in Neutral.
2
1
Reverse
1
Neutral
2
Forward
3
The shift lever controls the direction of travel.
The drive line on the Jet Boat is direct drive, so jet thrust is always being pro­duced while the engine is running.The direction of the boat is controlled by the jet pump gate which directs the flow of the jet thrust as follows:
Forward
The jet pump gate is lifted all the way up. All jet thrust is to the rear, which moves the boat forward.
3
Do not use control levers as grab handles because damage can occur.
NOTE: _________________
This Jet Boat is equipped with a mechanical interlock that prevents shift lever movement unless the throttle lever is put in the idle position first. It also has a start-in-gear protection neu­tral switch that prevents the engine
________________
2-7
2
F
EATURES
& F
UNCTIONS
Neutral
The jet pump gate is dropped down part way over the jet nozzle. Some jet thrust is to the rear and some jet thrust is redirected forward. This balance of thrust acts like “neutral” to keep the boat from moving.
WARNING
Leave the throttle in the idle position when Neutral is selected. The boat will start moving as if it was in Forward or Reverse if engine speed is increased above idle in Neutral.
Reverse
The jet pump gate is dropped all the way down over the jet nozzle. Jet thrust is redirected toward the bow of the boat, which moves the boat backward.
________________
CHOKE KNOB
➀
➀ Choke knob
Pulling the knob supplies a rich fuel-air mixture required to start the engine.
NOTE: _________________
Refer to Starting The Engine on pages 3-11 to 3-13 for proper operation.
FUEL TANK FILLER CAP
To remove the fuel tank filler cap, turn it counterclockwise.
BOW
➀
➁
➀ Fuel tank filler cap ➁ Fuel tank vent
Be sure to tighten the cap securely before operating.
2-8
F
WARNING
CAUTION:
EATURES
& F
UNCTIONS
2
FUEL COCK
➀
➀ Fuel cock
The fuel cock supplies fuel from the tank to the carburetors. The fuel cock has three positions:
________________
Sharp turns with a partial tank of fuel may result in fuel starvation due to fuel sloshing. Turn the fuel cock to Reserve if the engine begins to hes­itate during aggressive turning or high speed operation to avoid poor performance or engine damage.
________________
Always place the fuel cock in the "OFF" position when transporting or storing the Jet Boat. Otherwise, fuel could leak out into the engine or engine compartment, which could create a fire or explosion hazard.
GAUGES
1. Speedometer
This meter shows the boat speed in miles per hour (mph).
➥
SPEEDOMETER
1. OFF: With the knob in this position, fuel does not flow. Always turn the knob to this position when the engine is not running.
2. ON: With the knob in this position, fuel flows to the carburetors.Normal running is done with the knob in this position.
3. RES: This position selects "RESERVE." If you run out of fuel in the "ON" position, turn the knob to this position to be able return to port to refuel.Remember to fill the tank at the first opportunity. After refueling, return the fuel cock knob to the "ON" position for further boating.
2-9
CAUTION:
2
F
EATURES
& F
UNCTIONS
2. Tachometer
The Jet Boat has a tachometer that displays engine rpm.
➥
TACHOMETER
3. Fuel Level Gauge
The fuel level gauge shows the amount of fuel in the fuel tank. The ignition switch must be in the “ON” position to activate the gauge.
FUEL LEVEL GAUGE
➥
Always consider the distance you are travelling and the amount of available fuel you have. Be sure you have enough fuel to reach the next fuel stop. Be sure to begin returning to the port
before
tank of fuel.
4. Oil Level Warning Light
you have consumed a half a
This light comes on when the oil level in the tank is too low to contin­ue normal operation for much longer.Refill the oil tank as soon as possible (see “Filling the Oil Tank,” page 3-3).
OIL LEVEL
WARNING LIGHT
➥
________________
If the oil level warning indicator comes on, refill with engine oil as soon as possible.The engine will be severely damaged if run without oil.
2-10
F
CAUTION:
EATURES
& F
UNCTIONS
2
OVERHEAT W ARNING SYSTEM
The engine has an overheat warning device.If the engine starts to overheat, the engine speed will be limited to about 3,500 rpm.
The engine is equipped with a cooling­water pilot outlet on the starboard side of the hull. Check that water comes out of the outlet while the engine is run­ning, particularly while applying throt­tle. If you do not see any water at the outlet, cooling water may not be circu­lating in the engine.
If water is not circulating, something may be clogging the jet intake grate. Refer to the Jet Pump Clean-Out pro­cedures on page 5-4 for further infor­mation.
________________
If the cause of overheating cannot be found and corrected, take special precautions to avoid major engine damage while you return to shore.
If getting a tow from another vessel is not possible, operate engine just slightly above idle while you return to shore. If you can be towed, refer to "Towing the Jet Boat" on page 5-
3.
NOTE: _________________
If water cooling passages on the engine is dry, it will take about 20 sec­onds for water to reach the pilot outlet after starting.
2-11
F
2
EATURES
SWITCHES
1
Blower
1 2
Bilge Pump
& F
UNCTIONS
3
2
Lights
3
Horn
4
4
Blower
Press this switch to turn on the blower to ventilate the engine compartment. See 3-9 for more information.
Bilge Pump
Press this switch to activate the bilge pump.See page 3-8.
BREAKERS
Switch Circuit Breakers
The electrical circuit for each switch is protected by a circuit breaker. If the button above a switch pops out, push it back in with your finger. If it pops out again, ask your Yamaha dealer to inspect the electrical system.
Lights
This toggle switch controls the required on-board lighting. Press the switch up to turn on both the bow light and stern light for night running. Press the switch down to operate the stern light alone when at anchor. Put the switch in the middle position to turn off lights. See page 3-9 for more information.
Horn
Pressing this switch activates the horn. The horn can be used to signal other boats as required by the “Rules of the Road” (see page 1-15).
2-12
F
CAUTION:
EATURES
& F
UNCTIONS
2
ENGINE HOOD
To open the engine hood, lift the latch hook upward and lift the hood. The hood is supported by gas-filled struts.
Hood Latch
Hood Support Struts
HOOD STRUTS
Closing Hood
To close the hood, push the hood down in the center.
NOTE:
Make sure the hood is firmly secured with the latch.
_________________
Do not open or close the hood by lifting or pressing on the sides. Damage to the hood or latches could occur.
2-13
2
F
EATURES
& F
UNCTIONS
STORAGE COMPARTMENTS
There are seven on-board storage compartments.
Bow Storage
Ski Locker
Port Side, behind front seat
Under Hood, Center Tray
.
Under Hood, Port Side
Clean-Out Access
Driver’s Side Stora ge,under windshield
NOTE: _________________
There is a drain plug in the bottom of the port side storage compartment. Pull the plug out to drain water, and press down firmly to seal. The bilge pump will drain excessive water.
Press the latch in the windshield to open the storage compartment. Press around the latch to close.
NOTE:
Make sure all panels and covers are in place prior to launching or driving the Jet Boat.
2-14
_________________
Chapter 3

OPERATION

FUEL REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
Gasoline (Petrol) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
OIL INJECTION SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
GASOLINE (PETROL) AND ENGINE OIL FILLING . . . . . . . . . . . . . . . . . . .3-3
Filling the Gasoline (Petrol)Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3
Filling the Oil Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3
PRE-OPERATION CHECKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4
Check List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4
Check Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-11
Starting the Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-11
Stopping the Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-14
Break-In (Running-In) Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-14
DRIVING YOUR JET BOAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-15
Getting to Know Your Jet Boat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-15
Learning to Operate Your Jet Boat . . . . . . . . . . . . . . . . . . . . . . . . . . .3-15
Boating with Passengers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-16
Boarding from the Water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-16
Boarding from a Dock or Landing Jetty . . . . . . . . . . . . . . . . . . . . . . . .3-17
Turning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-17
Stopping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-18
Docking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-18
Leaving a Dock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-19
Beaching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-19
Anchoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-20
Crossing Waves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-20
POST-OPERATION CHECKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-21
TRAILERING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-22
Hitch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-22
Trailering Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-22
Backing Your Trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-23
Launching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-24
Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-24
Lifting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-25
CAUTION:
WARNING
O
PERATION
3
FUEL REQUIREMENTS
GASOLINE (PETROL)
Use regular unleaded 87 octane (R+M ÷2) gasoline (petrol).
________________
GASOLINE (PETROL) AND ITS VAPORS ARE HIGHLY FLAMMABLE AND EXPLOSIVE!
● Do not smoke when refueling, and keep away from sparks,flames, or other sources of ignition.
● Stop engine and turn ignition keys to Off before refueling.
● Refuel in a well-ventilated area. If the Jet Boat is in the water, be sure it is securely moored to the fueling dock. All passengers must be out of the boat during refueling.
● Take care not to spill gasoline (petrol). If gasoline (petrol) spills, wipe it up immediately with dry rags. Always properly dispose of gasoline-soaked rags.
● Avoid overfilling the fuel tank. Stop filling when the fuel level just reaches the bottom of the filler tube. Do not fill up the filler tube because fuel expands as it warms up and could overflow.
● Tighten the filler cap securely after refueling.
● If you should swallow some gasoline (petrol), inhale a lot of gasoline (petrol) vapor, or get
gasoline (petrol) in your ey es,get immediate medical attention.
● If any gasoline (petrol) spills onto your skin, immediately wash with soap and water. Change clothing if gasoline (petrol) spills on it.
________________
Use only fresh gasoline (petrol) that has been stored in clean containers.
Gasohol
There are two types of gasohol: gaso­hol containing ethanol and that con­taining methanol. Gasohol containing ethanol can be used if ethanol content does not exceed 10% and the fuel meets minimum octane ratings. Gasohol containing methanol is not recommended by Yamaha because it can cause fuel system damage or engine performance problems.
Ring Free Fuel Additive
Gasoline is a precise blend of many dif­ferent substances, each chosen to give certain characteristics. Gasoline blends have been changing in recent years in response to concerns about pollution and resulting emissions regu­lations. One of the most obvious changes has been the elimination of lead from fuels.
As gasoline has changed, the amount of additives such as aromatics and oxygenates has increased.These addi­tives are important for the engines in passenger cars, but they can have detrimental effects in marine engines, particularly 2-cycle engines, because of increased deposits in the combus-
3-1
CAUTION:
3
O
PERATION
tion chamber. When enough deposits collect, piston rings begin sticking. Performance drops and engine wear increases dramatically.
While many additives available may reduce deposits, Yamaha recommends the use of Ring Free Fuel Additive, available from your Yamaha dealer. Ring Free has repeatedly proven its ability to clean combustion deposits from inside the engine, notably in the critical piston-ring-land area, and fuel system components. Follow product labeling for use instructions.
ENGINE OIL
Recommended oil: YAMALUBE FOR OUTBOARDS TWO-CYCLE LUBRICANT . If YAMALUBE FOR OUTBOARDS is not available, another 2-cycle engine oil with a NMMA®-certified TC-W3 rating may be used.
™
➅
OIL INJECTION
SYSTEM
This engine uses Yamaha's oil injection system, which provides superior lubri­cation by ensuring the proper oil ratio for all operating conditions.No fuel pre­mixing is necessary (except during break-in). Simply pour gasoline (petrol) into the fuel tank and oil into the oil tank.
________________
Do not allow the oil tank to empty completely. The oil injection pump must be bled to ensure proper oil flow after the tank empties. Otherwise, engine damage may occur. Refer to page 4-12, "Bleeding the Oil Injection Pump," for more information.
➀
➇
➀ Oil level sender ➁ Oil filter ➂ Oil-injection pump
➆
➃
➄
➂
➃ Oil pump bleeder ➄ Carburetor ➅ Oil level warning light
3-2
➈
➁
➆ Oil tank ➇ Oil tank cap ➈ Oil return line
WARNING
CAUTION:
O
PERATION
3
GASOLINE (PETROL)
AND ENGINE OIL
FILLING
FILLING THE GASOLINE (PETROL) T ANK
Open the fuel tank filler cap, and slow­ly add fuel to the fuel tank. Be careful not to spill fuel or overfill the tank.
Stop filling when the fuel just becomes visible in the bottom of the filler tube. Do not “top off” the tank, because gasoline (petrol) could spill out. Be sure to tighten the cap securely.
________________
Be careful when refueling. Avoid getting water or other contaminants in the fuel tank. Contaminated fuel can cause poor running or engine damage.
FILLING THE OIL T ANK
Open the engine hood, then open the oil tank filler cap. Very slowly add engine oil to the oil tank. Stop pour ing when the oil just reaches the bottom of the filler neck. Be sure to tighten the cap securely.
________________
● Oil in the bilge is a serious fire hazard. Wipe up any spilled oil immediately and properly dis­pose oil soaked rags.
● Do not add gasoline to the oil tank. Fire or explosion could result.
Oil tank capacity: 2.6 US gal (10 lit)
Fuel tank capacity: 34 US gal (129 lit)
3-3
3
WARNING
O
PERATION
PRE-OPERATION
CHECKS
CHECK LIST
Before Operating this Jet Boat, perf orm the following checks:
ITEM CHECK
BEFORE LAUNCH OR OPERATION:
STEERING Check for proper steering operation. 3-5 THROTTLE Check for proper throttle operation. 3-5 SHIFTING Check for proper shift operation. 3-5 FIRE EXTINGUISHER Check readiness of the extinguisher. 3-6 HULL Check the hull for damage or cracks
before launching.
JET (WATER) Check that no debris is in the intake 3-7 INTAKE before launching.
FUEL SYSTEM Check fuel system for leaks. 3-7 FUEL AND ENGINE Check fuel and oil level;add as necessary. 3-7
OIL LEVELS BATTERY Check battery condition, mounting, and connection. 3-7 DRAINAGE SYSTEM Check, and remove all water and fuel residue 3-8
before launching. Be sure drain plugs are tightened.
ENGINE Operate the blower for at least 4 minutes. 3-9 COMPARTMENT Open engine hood and check to be sure no
gasoline vapors are present. ENGINE HOOD Check that hood latch is secure. 2-13 LIGHTS AND HORN Check lights to be sure they operate. 3-9
Press horn button to be sure it operates.
AFTER LAUNCH:
SWITCHES Check operation of the ignition start switch 3-10
and engine stop switch lanyard. COOLING WATER Check that water comes out while the 3-10
PILOT OUTLET engine is running.
If any item in the Pre-Operation check is not working properly, have it inspected and repaired before operating the Jet Boat. Otherwise an accident could occur.
________________
PAGE
REF.
NOTE: Steering and Shifting Pre-Operation Checks will require two persons, one person to operate
controls and one person to observe proper operation at the stern.
3-4
O
PERATION
3
NOTE: _________________
Pre-operation checks should be made each time the boat is used.This proce­dure can be accomplished thoroughly in a short time. The added safety and reliability the checks assure is worth the time involved.
CHECK POINTS
Steering
Make sure the wheel is not loose. There should not be any free play, either in-and-out or in rotation.Turn the steering wheel full-right and full-left to make sure operation is smooth and unrestricted throughout the whole range.
Make sure the jet nozzle changes direction as the steering wheel is turned. The jet nozzle should point to starboard (right) when the wheel is turned right. The jet nozzle should point to port (left) when the wheel is turned left. There should not be free play between the steering wheel and the jet nozzle.
Throttle
Operate the throttle lever several times to make sure there is no hesitation in travel. Operation should be smooth over the complete range of motion, and the lever should return completely to the idle position.
Shifting
Before launching, make sure the jet pump gate drops down over the jet nozzle to the stopper position when the shift lever is moved to the “Reverse” position. Also make sure the jet pump gate returns to the full up stopper posi­tion when the shift lever is mo ved to the “Forward” position.
3-5
O
3
WARNING
Shift only with the engine idling. Do not shift when applying throttle.
Fire Extinguisher
PERATION
________________
This Jet Boat is included in the Class 1 inboard boat classification of the U.S. Coast Guard.A boat of this type MUST carry a fire extinguisher of a B-1 classi­fication, with a capacity of two pounds or more when navigating in waters under Coast Guard jurisdiction.In addi­tion, most state and local boating laws also require that the craft carry a USCG-approved fire extinguisher wherever the boat is operated.
A fire extinguisher is not standard equipment with this boat. If you do not have one, contact your local Yamaha Jet Boat dealer or a fire extinguisher dealer to obtain one meeting the prop­er specifications.
Make sure the fire extinguisher is aboard and full. See the instructions supplied by the fire extinguisher manu­facturer to determine proper indication of condition.
WARNING
Always carry a fire extinguisher on board.
________________
A fire extinguisher holder is located inside the bow storage compartment. Be sure the fire extinguisher is held in place by the strap.
3-6
WARNING
WARNING
O
PERATION
3
Jet Intake
Before launching the Jet Boat, careful­ly check the jet intake under the boat for weeds, debris, or anything else that might restrict the intake of water. If the intake is clogged, cavitation could occur, reducing jet thrust, and possibly damaging jet pump parts. In some cases, the engine may overheat because of lack of cooling water, and damage could result. Engine cooling water is fed to the engine by the jet pump (see pages 2-11).
Refer to Jet Pump Clean-Out proce­dures on page 5-4 before attempting to remove weeds or debris from the jet intake or impeller areas.
________________
Rotating parts could cause severe injury or death. Before attempting to remove weeds or debris from the jet intake or impeller areas; shut off the engine, remove ignition key, then remove the engine stop switch lan­yard from the stop switch.
Fuel System
Refer to page 4-10, "FUEL SYSTEM INSPECTION," for correct procedure.
Fuel and Engine Oil Levels
1) Turn the main switch key to ON. Wait for the fuel gauge needle to stop moving, then note the fuel level.Add fuel if necessary.
NOTE: _________________
The fuel level is most accurate when the boat is sitting level on the trailer or in the water.
2) Open the engine hatch, then check oil level in the tank. Add as neces­sary.
Battery
The Jet Boat uses one battery. Check the battery condition and the battery electrolyte level. Make sure connec­tions are tight and that battery is prop­erly secured.
________________
The battery must always be fully charged and in good condition. Loss of battery power may leave you stranded. Never operate the Jet Boat if the battery does not have sufficient power to start the engine or if it shows any other signs of decreased power.
3-7
WARNING
CAUTION:
3
O
PERATION
Drainage System
Self-Bailing Deck— Most water which enters the deck area
bails automatically out the stern through the large drain hole in the deck. A one-way check valve in the drain prevents water from traveling back to the deck during mooring or while moving in reverse.
Bilge Pump—
Your Jet Boat is equipped with a drainage system that channels water that enters the boat from the storage compartments to the bilge under the engine compartment. When the bilge pump is turned on (see page 2-12), the pump will sense when there is exces­sive water in the bilge and will auto­matically drain most of it. For normal operation, turn the bilge pump switch on during boat use and turn it off when leaving the boat.
Drain Plugs—
Drain plugs are located on each side of the jet nozzle on the stern to allow more complete draining when the boat is removed from the water.
Engine Compartment and Fuel Compartment Drain Plugs—
Water will not normally enter the engine compartment or fuel compart­ment areas during operation. If it does, open the drain plugs and allow water to drain. Also open the engine compart­ment plugs when flushing the engine area with fresh water after salt water operation.
________________
● Excessive water in the engine compartment bilge can splash into the carburetor and engine. This could cause engine damage.
● Be sure all drain plugs are tight­ened before operating your Jet Boat.
________________
Gasoline (petrol) and its vapors are highly flammable and explosive. If a fuel or a fuel/water mix drains from the fuel tank compartment drain or is found in the engine compartment, wipe it up immediately with dry rags. Do not operate the boat until the source of the fuel leak is found and corrected.
3-8
O
WARNING
PERATION
3
Engine Compartment
Operate the bilge blower for at least 4 minutes before starting the engine. Open engine hood and check to be sure no gasoline vapors are present. Check for fuel leaks or loose electrical connection.
➀
➀
Lights
Check for proper operation of the bow, stern, and instrument lights by press­ing the switch on the control panel.
➀ Blower motor
________________
Gasoline vapors can explode. Before starting the engine, operate the blow­er for at least 4 minutes and check the engine compartment bilge for gasoline vapors. Do not start the engine if you can smell fuel vapors in the engine compartment or if there are any loose electrical connections. Contact your dealer if there is a prob­lem you cannot locate or correct.
3-9
CAUTION:
3
O
PERATION
Horn
Press the horn switch to be sure the horn operates.
Engine Stop Switch
➀
➁
➀ Engine stop switch ➁ Lock-plate
First, place the boat in the water to pro­vide adequate engine cooling.Start the engine, and then remove the engine stop switch lock-plate, and verify that the engine stops.
Refer to pages 3-11 to 3-13, "START­ING THE ENGINE", for information on proper operation of the starter switch.
Cooling-Water Pilot Outlet
Check that water comes out from the pilot outlet while the engine is running in the water.Refer to page 2-11 for cor­rect operation of the device.
NOTE: _________________
It may take up to 20 seconds for water to reach the pilot outlet when first launching the boat. The amount and force of the exiting water will vary with engine rpm.
________________
A continuous flow of water from the pilot hole shows that water is flow­ing through the engine cooling pas­sage. If water is not flowing out of the pilot hole during operation, do not continue to run the engine. Overheating and serious damage could occur. See Overheat Warning System, page 2-11, for more infor­mation.
3-10
O
PERATION
3
OPERATION
ST ARTING THE ENGINE
WARNING
SEVERE INJURY OR DEATH MAY RESULT IF YOU IGNORE ANY OF THE FOLLOWING:
● Before operating your Jet Boat, become familiar with all controls. Consult your Yamaha dealer about any control or function you do not fully understand.
● Attach the engine stop switch lanyard to your personal flotation device before operating. Failure to attach lanyard could result in a runaway boat if operator is eject­ed.
● Check throttle, steering and shift lever for proper operation before starting the engine.
● Shift into neutral before starting engine. Put throttle lever in the idle position before shifting.
________________
WARNING
Never operate in water that is less than 3 ft (90 cm) deep.You increase your chance of hitting an underwa­ter obstacle. You could be injured. Pebbles or sand can also be sucked into the jet (water) intake, damaging the impeller.
CAUTION:
There are hull drain plugs at the bot­tom of the stern. Be sure they are securely tightened before launching the Jet Boat.
________________
________________
3 FT (90 CM)
1) Always make sure the boat is launched and used in waters that are free from weeds and debris, and at least 3 ft (90 cm) deep.
2) Turn the fuel cock knob to the "ON" position.
3-11
O
3
NOTE: _________________
Before the first start-up, remove the fuel tank filler cap to release any built­up pressure in the tank because of fuel expansion.
PERATION
➀
➁
➀ Engine stop switch ➁ Lock-plate with lanyard
NOTE: _________________
It is not possible to start the engine with the lock-plate removed from the engine stop switch. However, the starter motor will turn the engine over.
4) Pull the choke knob all the way out.
3) Attach the lanyard clip to your PFD. Install the lanyard lock plate on the engine stop switch by pushing the lock plate groove over the nut beneath the knob. Be sure the lan­yard is not wrapped around the steering wheel or tangled in the controls.
NOTE: _________________
● It may be necessary to hold the choke knob completely pulled out when starting a very cold engine.
3-12
CAUTION:
O
PERATION
NOTE: _________________
● Be sure the shift lever is put in the Neutral position or the starter motor will not operate.
● On this boat, the engine is connect­ed directly to the drive unit. Starting the engine generates some thrust immediately. Only enough throttle should be applied to keep the engine at a fast enough idle to stay running.
3
5) Put the throttle lever in the idle posi­tion. Shift into Neutral.Turn the igni­tion key to “Start.”When the engine starts, release the key. If the engine will not start or doesn’t stay running, move the throttle lever forward slightly and try again.
___________
Never turn the ignition key to “Start” while the engine is running. Do not keep the starter motor running for more than five seconds. If the engine does not start after five sec­onds of cranking, release the starter button. Wait at least 15 seconds before trying to start the engine again. If the starter motor is engaged continuously for more than five seconds, the battery will be quickly discharged, and it will be impossible to start the engine. The starter motor may also be damaged if it is engaged continuously for more than five seconds.
6) After the engine is warm, gradually push the choke knob in fully, back to its original position.
3-13
CAUTION:
WARNING
3
O
PERATION
STOPPING THE ENGINE
To stop the engine, return the throttle lever to the idle position, then turn the main switch to “Off.” The engine can also be stopped by pulling the engine stop switch lanyard.
________________
Once the engine has stopped, you have NO STEERING CONTROL over the boat. You could collide with another boat, a dock, or other obstacle.
BREAK-IN (RUNNING-IN) PROCEDURE
The engine and other components require a break-in (running in) period to allow surfaces of moving parts to wear in evenly. This ensures proper perfor­mance and promotes longer engine life.
________________
● Failure to follow the break-in pro­cedures may result in reduced engine life,or even engine damage.
● During first 5 hours or 2 tanks of operation, use 50:1 pre-mix fuel (in addition to oil in oil tank).
● After above period, use straight gasoline (petrol) for normal oper­ation.
1) Before launching: Fill the fuel tank with 50:1 premix fuel.Fill the oil tank with oil (see page 3-3). Launch the boat and start the engine (see page 3-11).
NOTE: _________________
● Remove the ignition key and the engine stop switch lanyard if the boat will be left unattended.
● Stopping the engine immediately after operating at high rpm is not recommended. Let the engine cool off at idle or low speed for a few minutes first.
2) First 5 minutes: Run the engine at the lowest possible idling speed.
3) First tankful of fuel: Gradually increase the throttle position during operation, up to a maximum of one­half throttle. Vary engine speed occasionally.
4) Second tankful of fuel: Fill the tank again with 50:1 premix fuel (in addi­tion to the oil in the oil tank), and proceed with normal operation. Following this tankful of fuel, use straight gasoline in the fuel tank and oil in the oil tank (see page 3-3).
3-14
O
PERATION
3
DRIVING Y OUR
JET BOAT
GETTING TO KNOW YOUR JET BOAT
Operating your Jet Boat requires skills acquired through practice over a period of time.Take the time to learn the basic techniques well before attempting more difficult maneuvers.
Boating with your new Jet Boat can be a very enjoyable activity, providing you with hours of pleasure. But it is essen­tial to familiarize yourself with the oper­ation of the Jet Boat to achieve the skill necessary to enjoy boating safely. Before you begin, be sure you have read this Owner's Manual completely and understand the operation of the controls. Pay particular attention to the safety information in Chapter 1. Read all warning and caution labels on your Jet Boat.
This Jet Boat is designed to carry one operator and up to four passengers, as long as the total weight of people and cargo does not exceed 930 lb (421 kg). Never have more than five people in the boat.
Know and follow U.S. Coast Guard, state, and local laws when operating your Jet Boat.
Select a wide area to learn in, where visibility is good and other boat traffic is light. Keep the proper distance from other boats and vehicles. Do not oper­ate where people are swimming.
Always attach the engine stop switch lanyard to your personal flotation device before operating.
You and all other passengers must always wear a U.S. Coast Guard approved personal flotation device when riding in the Jet Boat.You should consider wearing water shoes, eye pro­tection, gloves, and other protective apparel. Water sports increase your risk of injury from contact with your boat, other vessels, docks, rocks, or coral. Waterskiiers must also wear a wetsuit to protect against jet thrust or impact with the water surface, particu­larly as speeds increase.Normal swim­ming attire may not adequately protect you.
Grip the wheel firmly and keep both feet on the deck when driving the Jet Boat.
LEARNING TO OPERATE Y OUR JET BOAT
Before boating, always perform the Pre-Operation Checks listed on page 3-4. The short time spent checking the machine's condition will reward you with added safety and a more reliable Jet Boat.
3-15
CAUTION:
CAUTION:
WARNING
WARNING
O
3
PERATION
BOATING WITH PASSENGERS
When one or more passengers are on board, the boat may handle differently, so operating it requires a higher degree of skill.
Remember: Your Jet Boat is designed for one operator and up to four pas­sengers only. Never have more than five people in the Jet Boat.Passengers should sit so the weight in the boat is balanced from side to side as much as possible. If the passenger seat in front of the helm is used, be sure the opera­tor’s view ahead is not obstructed.
Passengers must sit in one of the seats and hold onto the grips while putting both feet on the deck.
________________
When passengers are on board, make sure they are seated and hold­ing on before you start to acceler­ate. An unprepared passenger could lose balance and fall.
BOARDING FROM THE WATER
1) Be sure engine is off, then move to
the stern of the boat.Pull your upper body onto the swim platform with your arms.Bring a knee up onto the platform or twist and sit on the plat­form, whichever is more comfort­able.
________________
Strong streams of water from the jet nozzle can be dangerous, and can result in serious injury when directed at body orifices (rectum and vagina).
● Do not board from the rear, use swim platform, or swim behind boat if the engine is running.
● Stay away from the back of the boat when engine is running.
___________
Do not step on the steering nozzle or pump gate. Damage could occur.
2) Climb over the engine hatch and sit in one of the seats provided.
___________
Do not use control levers as grab handles because damage can occur.
3-16
O
PERATION
3
BOARDING FROM A DOCK OR LANDING JETTY
1) Board the boat from the side. One person should board at a time by stepping into the boat. Never jump in. Avoid stepping on slick gelcoat surfaces on the boat’s gunwales, especially if wet.
2) Sit in one of the seats provided and put both feet on the deck.
CAUTION:
Do not use control levers as grab handles because damage can occur.
___________
TURNING
WARNING
● You need engine power to turn. Pulling the throttle lever back to idle or shutting off the engine can cause you to hit an obstacle you are attempting to avoid.
● Be sure passengers are holding on before making turns. An unprepared passenger could lose balance and fall.
________________
As you make turns, remember that boats steer from the stern. As you make a turn to the right, for example, the stern of the boat swings to the left.This char­acteristic is particularly important to understand when maneuvering near obstacles such as docks or buoys.
TURNING RIGHT
TURNING RIGHT
TURNING LEFT
Engine power produces thrust from the jet pump. Directional control is provid­ed by opening the throttle and turning the wheel.
To make a turn at higher than trolling speed: Turn the wheel in the desired direction and apply enough throttle to make your turn.High thrust turns the boat sharply; low thrust turns less sharply. Pulling back the throttle completely above trolling speed causes the boat to go straight even if you turn the steering wheel. TURNS CANNOT BE MADE WITHOUT APPLYING THROTTLE!
TURNING LEFT
3-17
3
O
PERATION
STOPPING
300 FT (91 M)
The Jet Boat is not equipped with a separate braking system. It is stopped by water resistance after the throttle lever is moved back to idle. From full speed, the Jet Boat stops in approxi­mately 300 ft (91 m) after the throttle is moved back to idle. The stopping dis­tance varies depending on gross weight, water surface conditions, and wind direction.The stated stopping dis­tance should be used for a reference.
WARNING
You will lose steering control if you completely pull the throttle levers back to idle.
________________
DOCKING
2) Notice how wind and water currents are affecting boat movement as you attach your mooring lines and fenders.
3) Approach the dock at idle speed. Use reverse as necessary during slow speed maneuvering to help control speed and direction. Position the boat according to wind and water conditions.
WARNING
Do not use your hand, arm, or other part of your body to try to keep the boat from hitting the dock.You could be injured if the boat pushes against the dock.
Wind or current pushing boat away from dock:
________________
WIND OR CURRENT
Slowly approach the dock at about a 45° angle. Secure the bow to the dock, then use engine thrust or a boat hook to gently move the stern to the dock.
3-18
CAUTION:
O
PERATION
3
Wind or current pushing boat toward dock:
WIND OR CURRENT
Slowly maneuver to a shallow angle and allow the boat to move toward the dock.
No wind or current:
Approach the dock at a shallow angle. Secure the bow to the dock, then use engine thrust or a boat hook to gently move the stern to the dock.
LEAVING A DOCK
Because boats steer from the stern, the stern first moves in the direction opposite your desired turn. It is espe­cially important to understand this characteristic when leaving a dock. If you simply turn the wheel to steer the bow away from the dock, as you would when driving a car out of a parking space, you will drive the stern of the boat into the dock. Following is a basic maneuvering technique which can be used in most circumstances.
1) With the engine idling and the bow still moored to the dock turn the steering wheel toward the dock. This will start to move the stern of the boat away from the dock.
2) When the stern is out a few feet, release the bow mooring then steer in the direction you want the bow to move.Open the throttle slightly and begin to move away from the dock.
BEACHING
2) Approach the beach slowly and stop the engine when the water is about 3 ft (90 cm) deep.Remember: turning is impossible with the engine stopped.
3) Get out of the boat and pull the bow up on the beach.
4) When leaving the beach, push the boat out into water that is at least 3 ft (90 cm) deep before starting the engine.
___________
● Small pebbles, sand, seaweed, and other debris can be ingested into the jet intake and impair or damage the impeller.Always stop the engine before beaching the boat. Be sure the boat is in water 3 ft (90 cm) deep before starting the engine again.
● Do not beach the boat on rocky beaches. The hull gelcoat can be damaged.
● Pay attention to shifts in tide. Beaching at high tide may make it impossible to re-launch the boat if the tide recedes.
3-19
3
WARNING
O
PERATION
ANCHORING
________________
Always anchor from the bow. Anchoring from the stern will make the boat unsteady. A strong current can pull a stern-anchored boat underwater.
Select an anchor appropriate for your boat and water conditions. A “danforth ” (or fluke) type anchor is suitable for most applications;your dealer can help you choose an anchor.
1) Make sure the anchor line is secure­ly tied to the anchor and to the bow eye.
2) Move the boat to the spot where you want to lower the anchor, heading the boat into the wind or current. Stop the boat, then lower the anchor until it hits bottom.
3) While keeping tension on the line, slowly back up the boat until you have let out line that is 4 to 6 times the depth of the water.For example, if you are anchoring in 10 feet of water, let out 40 to 60 feet of line. ecure the line.
4) Pull on the line to be sure the anchor
is holding. Also, periodically check your boat’s position against the shoreline to make sure it is not drift­ing and dragging the anchor.Reset it if necessary.
5) To pull in (“weigh”) the anchor, star t
the engines and move f orward, k eep­ing tension on the line as you pull it in.When the anchor line is straight up and down, pull hard to lift the anchor from the bottom material.
6) If the anchor is stuck on the bottom, try this: Let out a few feet of anchor line and secure the line to the boat again. Slowly maneuver the boat around the anchor until the anchor pulls loose. Keep the line taut during this procedure.
CROSSING W A VES
You won't always have flat, smooth water.There will be waves, wakes from other boats, etc.
The best way to cross waves or wakes is with the least "jolt" to you and the boat. Small waves are not as difficult to cross as larger waves. Crossing a sharp wave gives more of a jolt than a broad wave.
To cross a wave, change your speed and the angle that you cross the wave. Usually, a slower speed and "quarter­ing" the wave at an angle will reduce the "jolt."
Two other things you may notice:first is that crossing a group of wav es is not as easy or smooth as crossing just one wave;second, when you "quarter" the wave the boat will try to steer away from the wave. When crossing at a 45° angle, you may not notice this, but at a smaller angle of about 10° it can be very strong. Be prepared to steer as necessary.
3-20
CAUTION:
SHARP WAVES
BROAD WAVES
WAVE
90˚
45°
10 °
POST-OPERATION
CHECKS
1) After putting the Jet Boat on the trailer, flush the cooling system to prevent it from clogging up with salt, sand, or dirt. Refer to page 4-1 for the cooling system flushing proce­dure.
O
PERATION
3) Wash down the hull, helm, and the jet drive unit with fresh water.
4) Remove the two hull drain plugs and the two engine compartment drain plugs. Rinse the engine compart­ment with a small amount of fresh water. Be careful not to get water on the carburetor or electrical compo­nents.Allow any water in the bilge to drain out. After the water has drained, wipe the engine compart­ment and bilge with dry rags. Reinstall all drain plugs.
3
2) Drain residual water from the exhaust system by starting the engine then alternately pushing the throttle lever up to half throttle and back for 10 to 15 seconds.
Never run the engine at full throttle or for more than 15 seconds while the boat is out of the water. The engine may overheat and/or seize.
___________
3-21
WARNING
CAUTION:
3
O
PERATION
NOTE: _________________
This boat is equipped with an electric bilge pump that automatically removes excess water from the bilge while you are underway. However, some residual water remains that must be drained by removing the drain plug.
___________
Tighten the hull drain plugs secure­ly before launching the Jet Boat. Clean any foreign material, such as dirt or sand, from the threads before installing the drain plugs.
5) Spray a rust inhibitor, such as Yamaha Silicone Protectant and Lubricant, on metallic parts to mini­mize corrosion.
TRAILERING
________________
Avoid accident and injury from improper trailering:
● The trailer must be matched for the Jet Boat’s weight and hull.
● The towing vehicle must have the capacity of pulling the load. Pulling a load that exceeds the vehicles’s towing capacity may cause loss of control.
● Be sure the boat is secured to the trailer and the trailer is properly hitched to the towing vehicle before towing.
● Always place the fuel cock in the "OFF” position when transport­ing or storing the Jet Boat. Otherwise, fuel could leak out into the engine or engine com­partment, which could create a fire or explosion hazard.
Select a trailer that is manufactured to carry a boat of the size and weight of your Jet Boat. Check the certification label on the left forward side of the trail­er. This label is required to show the Gross Vehicle Weight Rating (GVWR), which is the load carrying capacity of the trailer plus the trailer’s weight. Be sure that the total weight of your boat, any cargo, and the trailer weight itself does not exceed the GVWR.
3-22
O
PERATION
3
HITCH
The trailer hitch ball must match the size of the socket on the trailer hitch coupler.Hitches are divided into class­es that specify the gross trailer weight (GTW) and the maximum tongue weight.Always use a hitch rated for the same or higher class. Use a bolted-on or welded-on hitch; clamp-on bumper hitches are not recommended. Be sure the trailer hitch’s release handle is latched with the lock pin installed before towing.
Use safety chains between the towing vehicle and the trailer so the trailer will not detach completely from the towing vehicle if it accidentally comes loose from the hitch ball. Crisscross the chains under the trailer tongue so the tongue will not hit the road surface if it falls loose. Rig the chains as tightly as possible while allowing just enough slack to permit tight turns.
Be sure the tongue weight (vertical weight on the hitch point) is correct. Generally, 5% to 10% of the combined weight of the boat and trailer should be on the tongue. Too much or too little weight can cause difficult steering or trailer swaying.
TRAILERING CHECKLIST
● Check your state laws to be sure your trailer meets all regulations, such as proper licensing, brake, axle load, and safety chain require­ments.
● Check trailer for any loose fasteners or damaged parts.
● Check tires for proper inflation.
● Check wheel bearings and wheel
lug nuts before each trip.
● Check tail, brake, and turn signal lights for proper operation.
● Secure the bow of the boat to the trailer with the winch line and also with a separate bow tie-down to the winch stand and frame crossmem­ber. Secure the stern cleats to the trailer with tie-downs.
BOW
TIE-DOWN
● Take down and store the canopy top, if used.The top is not designed to stay on the Jet Boat at highway speeds.
● Carry a spare tire for the trailer, along with sufficient tools to change the tire.
● While traveling, check the wheel hubs on the trailer whenever you park. If the hub feels abnormally hot, have the bearing inspected
3-23
3
O
PERATION
before continuing your trip. On longer trips, it is a good idea to carry a set of spare wheel bearings, seals, and races.
● When making a turn, do not cut cor­ners. The trailer has a smaller turn­ing circle so it turns more sharply around the corner than the towing vehicle.
● Before backing your trailer into the water, disconnect the light plug from the towing vehicle. This will reduce the likelihood of the lights blowing out when submerged.
BACKING Y OUR TRAILER
It takes practice to back a trailer suc­cessfully. If you are not familiar backing up with a trailer, practice first in an open area away from obstacles.
LAUNCHING
As a courtesy to other boaters, prepare your Jet Boat for launching before using the ramp.
Each launch may hav e particular differ­ences, such as ramp angle, prevailing wind, waves, and water currents. If possible, watch a couple of boaters launch their boats first to notice any problems.While every boater develops a preferred launch procedure, here is a recommended general procedure:
1. Perform the Pre-Operation Checks shown on page 3-4 that can be per­formed on land, including operating the blower for at least 4 minutes.
Keep the following points in mind:
● Back slowly. Make steering adjust­ments in small steps.
● Turn the towing vehicle’s wheels opposite the direction you want the trailer to go.
● After the trailer begins moving, turn the towing vehicle to follow it.
● Have a second person stand by to help direct you with hand signals.
2. Remove all trailering tie-down lines from the boat and attach your dock­ing lines and fenders, if used.
3. Disconnect the trailer lights from the towing vehicle.
4. Back the trailer down the ramp as close to 90° to the shoreline as you can. If possible, have a second per­son stand aside as an observer. Stop when the wheels are at least halfway submerged.Set the parking brake.
3-24
O
PERATION
3
5. Remove the bow line from the bow eye.
6. Back the trailer farther into the water until just the tops of the fenders show, then reset the par king brake. Board the boat and start it. If possi­ble, remain on the trailer until the engine is warm and is responding to throttle.
7. Back the boat out into the water, watching carefully for other boats or obstacles.
LOADING
1. Disconnect the trailer lights from the towing vehicle.
2. Back the trailer down the ramp as close to 90° to the shoreline as you can. If possible, have a second per­son act as an observer while stand­ing to the side of the boat. Stop when the tops of the trailer’s f enders are about 3 inches above the water­line.
4. Make sure the boat is centered on the support rails and is headed straight for the bow stop (bumper board). Ease the boat forward until the bow rests against the bow stop.
5. Attach and tighten the winch line.
CAUTION:
● The winch line is not designed to pull the boat onto the trailer.
● The winch line should not be the only line securing the bow during trailering. Use a separate bow tie­down line along with the winch to secure the boat to the trailer.
6. Pull the trailer up the ramp out of the way of other boaters. Attach the bow and stern tie-downs.Reconnect the trailer lights.
___________
3. Guide the boat onto the support rails with the boat moving at the slowest idle speed.Use throttle only if necessary for steering ability.
WARNING
Using too much throttle can cause the boat to jump over the front of the trailer which can result in injury to the boat operator and bystanders. Use only enough throttle to maneu­ver the boat into the correct posi­tion.
________________
7. Follow the Post-Operation Checks on page 3-21.
3-25
CAUTION:
3
O
PERATION
LIFTING
Do not attach lifting cables to the bow eye, cleats,waterski tow eye, or grab handles. Serious damage to the boat can occur. Use only a sling designed specifically for lifting boats.
If you need to remove the Jet Boat from the water without a trailer, use these guidelines:
● Use a sling-type lifting mechanism designed for lifting boats. The sling should be covered with a protective material to prevent damage to the hull gelcoat.
● Use spreader bars to avoid side stress to the hull that may cause cracks in the gelcoat and fiberglass.
● Attach guidelines to the bow eye and stern tie-down cleats to control movement of the boat during lifting.
● Remove all people and all cargo from the boat. Drain any excess water from the bilge using the bilge pump.
● Be sure all people are standing clear, then lift boat slowly and just far enough to verify that the boat is securely held and properly bal­anced. If necessary, lower the boat again and adjust the slings.
● When ready, lift the boat slowly and carefully.
3-26
Chapter 4

MAINTENANCE AND CARE

STORAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
Cooling System Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
ADJUSTMENT AND MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4
Tool Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4
Periodic Inspection Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5
Spark Plug Cleaning and Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . .4-6
Grease Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7
Fuel System Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-10
Fuel Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-11
Fuel Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-11
Oil Injection System Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-11
Bleeding the Oil Injection Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-12
Carburetor Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-12
Steering Cable Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-13
Throttle Cable Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-13
Choke Cable Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-14
Reverse Gate Mechanism Inspection . . . . . . . . . . . . . . . . . . . . . . . . .4-14
Fuse Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-14
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-15
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-17
CAUTION:
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4
STORAGE
Storing your Jet Boat for prolonged periods of time, such as winter storage, requires preventative maintenance to ensure against deterioration. It is advisable to have the Jet Boat serviced by an authorized Yamaha Jet Boat dealer before storage.However, the fol­lowing procedures can be performed by the owner with a minimum of tools.
FUEL SYSTEM
Top off the fuel tank with fresh fuel, adding one ounce of Yamaha Fuel Conditioner and Stabilizer or an equiv­alent to each gallon of fuel. A full fuel tank is less likely to allow condensation to collect in the tank, reducing the chance of contaminated fuel. Running the engine with treated fuel during cooling system flushing will also help protect carburetors and fuel lines.
NOTE:
Use of Yamaha Fuel Conditioner and Stabilizer eliminates the need to drain the fuel system. Consult your Yamaha dealer or other qualified mechanic if the fuel system is to be drained instead.
_________________
COOLING SYSTEM FLUSHING
➁
➂
➀
➀ Flush Hose Connector ➁ Garden Hose Adapter ➂ Cap
Cooling system flushing is essential to prevent the cooling system from clog­ging up with salt, sand, or dirt.
1. Open the cap for the flush adaptor. Press the flush kit garden hose adapter into the flush hose connec­tor and turn until they are securely connected.
2. Start the engine, then immediately turn on the water supply fully.
___________
● Never turn on the water before starting the engine. The water could flow back through the muf­fler into the crankcase causing severe engine damage.
● Be sure to turn on the water immediately after starting the engine to prevent engine over­heating.
3. Run the engine at a fast idle for 10~15 minutes.
4-1
CAUTION:
WARNING
CAUTION:
M
4
4. Turn off the water supply, then drain residual water from the exhaust sys­tem by alternately pushing the throt­tle lever up to half throttle and back for 10 to 15 seconds. Shut off engine.
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___________
Never have the water on when the engine is not running. The water could flow back through the muffler into the crankcase causing severe engine damage. Do not run the engine for more than 15 seconds after the water supply has been turned off to avoid engine overheating.
5. After stopping the engine, remove the garden hose adapter.
6. Replace the cap securely.
LUBRICATION
________________
To reduce the risk of fire or explo­sion: Never pour or spray gasoline, or any other substance except engine fogging oil through the hole in the carburetor silencer cover.
___________
● Do not attempt to run the engine at full throttle or for more than 15 seconds while the boat is out of the water. The engine may over­heat and/or seize.
1. Open the caps ➀ on the carburetor silencer cover of the engine.
2. With the Jet Boat in a well-ventilat­ed area, start the engine. With the engine running at a fast idle, quickly spray as much Yamaha Stor-Rite Fogging Oil or an equivalent, a s p os­sible alternately into each carbure­tor through the holes in the silencer cover. Keep spraying until the engine stalls (or a maximum of 15 sec­onds). Reinstall the cap securely.
3. Remove the spark plugs and pour approximately one tablespoon of oil into each cylinder.
5. Lubricate all cables such as the throttle choke, and steering cables.
6. Grease the areas of the Jet Boat specified in "Grease Points" in the Adjustment And Maintenance sec­tion.
● Be sure to replace the cap secure­ly after fogging the engine. Otherwise water could enter the engine and cause damage.
4-2
WARNING
WARNING
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BATTERY
1. When the Jet Boat is not to be used for a month or more, remove the battery and store it in a cool, dark place. Clean the battery's casing and terminals using a mixture of baking soda and water (one tbs. of baking soda to one cup of water). Apply dielectric grease or petroleum jelly to the battery terminals and to all exposed connectors.
2. If the battery will be stored for a longer period, check the specific gravity of the fluid at least once a month and recharge the battery if it gets too low.
Specific gravity: 1.28 at 20°C (68°F)
CLEANING
➂
➀
➂
1. Remove the fuel tank compartment drain drain into the engine compartment. Reinstall the drain plug.
Gasoline (petrol) and its vapors are highly flammable and explosive. If fuel or a fuel/water mix drains from the fuel tank compartment drain, wipe it up immediately with dry rags. Do not operate the boat until the source of the fuel leak is found and corrected.
2. Remove the drain plugs in the stern
and engine compartment ➂.
➁
Wash down the hull, boat interior, and drive units with fresh water.
3. Rinse the engine and bilge areas with fresh water. Drain off all water and wipe up remaining moisture with clean, dry rags.
4. Spray the exterior of the engine with Yamaha Silicone Protectant and Lubricant.
5. Wax the hull with a non-abrasive wax such as Yamaha Ultra Gloss Cleaner Wax or other wax designed for marine gelcoat.
Slippery surfaces can cause falls and injury. Be careful not to apply too much wax on deck and gunnel stepping surfaces. This will make them slippery.
and allow any water to
➀
________________
________________
➁
➁
6. Wipe all vinyl and rubber compo­nents, such as the seats and engine compartment seals, with a vinyl pro­tectant such as Yamaha Protectant.
4-3
WARNING
4
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ADJUSTMENT AND
MAINTENANCE
Periodic inspection, adjustment, and lubrication will keep your Jet Boat in the safest and most efficient condition possible. Safety is an obligation of the Jet Boat owner. The most important points of boat inspection, adjustment and lubrication are explained on the following pages.
WARNING
● Be sure to turn off the engine when you perform maintenance unless otherwise specified. Otherwise, accident or injury could result from unexpected operation, moving parts, or elec­tric shock.
● If the owner is not familiar with machine servicing, this work should be done by a Yamaha dealer or other qualified mechan­ic. Improperly serviced compo­nents could fail or stop operating correctly ,which could result in an accident.
________________
TOOL KIT
It is advisable always to carry the Owner's Manual and tool kit with you whenever you use the Jet Boat. To pro­tect these articles from water, it is a good idea to put them in a vinyl bag.
The service information included in this manual is intended to provide you, the owner, with the necessary information for completing your own preventive maintenance and minor repairs. The tools provided in the owner's tool kit are sufficient for this purpose, except that a torque wrench is also necessary for tightening nuts and bolts properly.
TOOL KIT
________________
Do not attempt to modify this Jet Boat! Modifications to your boat may reduce safety and reliability, and may make the boat illegal for use.
4-4
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PERIODIC INSPECTION CHART
Frequency of maintenance operations may be adjusted according to the operating conditions, but the following table gives general guidelines.
● Indicates the checkups which you may do yourself.
■ Indicates work to be done by your Yamaha dealer.
Maintenance interval Initial Thereafter Page
10 50 100 100 200
hours hours hours hours hours
36 612
months months months months
Spark plug
Grease points Greasing Bearing housing Greasing Starter motor idle gear Greasing Fuel system Inspection Fuel filter Checking/Replacement Fuel tank Cleaning Oil injection system Inspection/Cleaning Oil filter Checking/Replacement Carburetor adjustment Inspection/Adjustment Trolling speed (idle) Adjustment Carburetor throttle shaft Inspection
Cooling-water passages Cleaning/Flushing every 4-1
Bilge strainer Cleaning Impeller Inspection Steering cable Inspection Throttle cable and choke cable Inspection/Adjustment Reverse gate mechanism Inspection Drain plugs Inspection/Replacement
Inspection/Cleaning/ Adjustment
●●●●
●●
■
*1
■
*3
●
*2
●
*4
■■
■■
■■
■
■■ 4-11
■■■
●●
■■
●
(after
ride)
●● ●
■■ ■
●●
●●
●
Battery Inspection fluid level 4-15
Rubber coupling Inspection Bolts and nuts Retightening
(inspect
before every
launch)
■■■
Every
●
*2 4-8
●
*4 4-9
■
●
●
■
4-6 4-7
4-10 4-11 4-11 4-11
4-12 4-12
4-13 4-13 4-14
*1 Grease capacity: 33.0 ~ 35.0 cm3(1.11 ~ 1.18 oz.) *3 Grease capacity: 8.0 cm3(0.27 oz.) *2 Grease capacity: 6.0 ~ 8.0 cm
3
(0.20 ~ 0.27 oz.) *4 Grease capacity : 2.0 cm3(0.07 oz.)
4-5
WARNING
4
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SPARK PLUG CLEANING AND ADJUSTMENT
The spark plug is an important engine component and is easy to inspect.The condition of the spark plug can indicate something about the condition of the engine.For example, if the center elec­trode porcelain is very white, this could indicate an intake air leak or carbure­tion problem in that cylinder.
Do not attempt to diagnose any prob­lems yourself. Instead, take the Jet Boat to a Yamaha Jet Boat dealer.You should periodically remove and inspect the spark plug because heat and deposits will cause the spark plug to slowly break down and erode. If elec­trode erosion becomes excessive, or if carbon and other deposits are exces­sive, you should replace the spark plug with another of the correct type.
Standard spark plug: BR8HS
Before installing the spark plug, mea­sure the electrode gap with a wire thickness gauge; adjust the gap to specification if necessary.
When fitting the plug, always clean the gasket surface and use a new gasket. Wipe off any dirt from the threads and screw in the spark plug to the correct torque.
Spark plug torque: 25 Nm (2.5 m-kg, 18 ft-lb)
NOTE:
Before installing the spark plug cap, be sure to wipe off any water on the spark plug or inside the cap. Push the spark plug cap down until it clicks.
NOTE: _________________
If a torque-wrench is not available when you are fitting a spark plug, a good estimate of the correct torque (with a new gasket) is 1/4 to 1/2 turn past finger-tight. Have the spark plug adjusted to the correct torque as soon as possible with a torque wrench.
When removing or installing a spark plug, be careful not to damage the insulator.A damaged insulator could allow external sparks, which could lead to explosion or fire.
_________________
________________
Spark plug gap: 0.6~0.7 mm (0.024~0.028 in)
4-6
F
EATURES
GREASE POINTS
To keep moving parts sliding or rotating smoothly, coat them with water resis­tant grease such as Yamaha Marine Grease, YAMAHA grease A, or an equi­valent.
Throttle cable and choke cable
Grease the throttle-cable and choke­cable inner wires at the carburetors.
Steering cable ball joints and inner wire
Grease the steering cable and shift cable ball joints at the steering nozzle. Extend the steering cable and shift cable inner wires and apply a thin coat of grease to them.
& F
UNCTIONS
2
Pivot points
Grease all pivot points of the steering and shift mechanism at the pump end.
4-7
4
CAUTION:
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Bearing housing
➀ Bearing housing grease nipple
Grease the bearing housing through the grease nipple.
Recommended water resistant grease:YAMAHA Marine Grease, or YAMAHA Grease A
The first service should be done after 10 hours or 1 month by your YAMAHA dealer.
Fill the bearing housing with water resistant grease through the grease nipple.
Grease capacity: 33.0~35.0 cc (1.11~1.18 oz)
After first service: Every 100 hours or 6 months (you may do this yourself).
Grease capacity: 6.0~8.0 cc (0.20~0.27 oz)
___________
Fill the grease slowly and carefully, because it can damage the hose and the joints.
4-8
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CAUTION:
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Starter motor idle gear
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➀ Starter motor idle gear grease nip-
ple
Grease the starter motor idle gear with water-resistant grease through the grease nipple.
Recommended water resistant grease:YAMAHA Marine Grease, or YAMAHA Grease A
The first service should be done after 10 hours or 1 month by your YAMAHA dealer.
Fill the starter motor idle gear through the grease nipple.
Grease capacity: 8.0 cc (0.27 oz)
4
After first service: Every 100 hours or 6 months (you may do this yourself).
Grease capacity: 2.0 cc (0.12 oz)
___________
Fill the grease slowly and carefully, because it can damage the hose and the joints.
4-9
WARNING
WARNING
4
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FUEL SYSTEM INSPECTION
________________
Gasoline (Petrol) and its vapors are highly flammable and explosive.
Failure to check for and repair fuel leakage may result in fire or explo­sion.
Check the fuel system for leaks, cracks, or malfunctions.If any problem is found, do the necessary repair or replacement as required. If repair is necessary, consult your nearest Yamaha Jet Boat dealer.
________________
Always properl y dispose of gasoline (petrol) soaked rags.They can spon­taneously ignite.
Checking points:
1. Carburetor leakage.
2. Fuel pump malfunction or leakage.
3. Fuel tank leakage.
4. Fuel hose joint leakage.
The United States Coast Guard requires that all inboard boats like your Jet Boat have visual access to fuel filler clamps and hoses. The Jet Boat has two access panels for this purpose.
One access panel is located on the upper deck wall on the port side, visible when the engine hatch is opened. The second access panel is located under the port side passenger seat.
To access the under-seat inspection panel, lift out the center portion of each seat cushion, remove the seat bench, then unscrew the fuel tank cover.
5. Fuel hose cracks or other damage.
6. Fuel filter leakage.
7. Fuel cock leakage.
8. Air vent check valve leakage.
9. Fuel filler clamps and hoses.
4-10
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CAUTION:
WARNING
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FUEL FILTER
The fuel filter is a one-piece, dispos­able type.The filter should be replaced once a year or after every 200 hours of operation, or if water is found in the fil­ter. Take the Jet Boat to your Yamaha dealer if fuel filter replacement is required.
________________
Do not try to change the fuel filter yourself. An incorrectly installed fil­ter can leak gasoline (petrol), which could lead to fire or explosion.Take the Jet Boat to your Yamaha dealer for fuel filter replacement.
FUEL T ANK
If the fuel tank needs to be cleaned or when any water is found in the fuel sys­tem, take the Jet Boat to your Yamaha dealer for service.
Oil tank
Check for oil tank damage or cracks. Check the oil hose and joint.When the oil tank needs to be cleaned, or when any water or dirt is found in the oil tank, take the Jet Boat to your Yamaha deal­er for service.
Oil filter replacement
If the in-line oil filter becomes contami­nated, see your Yamaha dealer for ser­vice.
➀
OIL INJECTION SYSTEM INSPECTION
Check the oil injection system for leaks, cracks, or malfunctions. If any problem is found, do the necessary repair or replacement as required. If repair is necessary, consult your near­est Yamaha dealer .
Check points
1. Check the oil tank for damage or cracks.
2. Check for water or dirt in the oil tank.
3. Check the oil hose and joint.
4. Check the oil filter.
➀ Oil filter
________________
Air enters the oil delivery line when the oil filter is removed, so the oil system must be bled properly after the filter is replaced. Air in the sys­tem will prevent oil from flowing properly to the engine, and severe engine damage will result. Your Yamaha dealer has the professional knowledge and experience to bleed the oil pump properly.
4-11
CAUTION:
4
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BLEEDING THE OIL INJECTION PUMP
➀
➀ Air bleeding screw
If the oil tank becomes completely empty or any hose connected to oil pump has been disconnected, the oil pump must be bled to ensure proper oil flow.
If bleeding of the oil pump is necessary , take the Jet Boat to your nearest Yamaha dealer.
CARBURETOR ADJUSTMENT
The carburetors are vital parts of the engine and require very sophisticated adjustment. Most adjusting should be left to a Yamaha Jet Boat dealer who has the professional knowledge and experience to do so. However, the fol­lowing point may be serviced by the owner as part of his usual maintenance routine.
Trolling Speed (Idle)
➀
➀ Throttle stop screw
NOTE: _________________
A diagnostic tachometer is useful for this procedure.
Place the Jet Boat afloat. Start the engine and warm it up for one or two minutes.
Using a diagnostic tachometer, adjust the engine’s speed to specification. Turn the throttle stop screw clockwise to increase engine speed or counter­clockwise to decrease engine speed.
Trolling speed: 1,200~1,300 r.p.m.
___________
The carburetor was set at the Yamaha factory after many tests. If the settings are disturbed without having technical knowledge, poor engine performance and damage may result.
4-12
M
WARNING
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STEERING CABLE INSPECTION
Be sure to check:
1. Check for smooth operation of the wheel and steering nozzle.
2. Check for proper steering adjust­ment. The nozzle should point straight back when the steering wheel is centered.
If steering is stiff or misadjusted, ask your Yamaha dealer to service it.
THROTTLE CABLE INSPECTION
Push and pull the throttle lever through its full range with the shift lever in Neutral. Repeat with the shift lever in Forward, and again in Reverse. The throttle lever should move smoothly from idle to full throttle and back.If not, ask your Yamaha Jet Boat dealer for service.
________________
Improper throttle operation could result in an accident. Check for proper throttle operation before starting the engine.
4-13
4
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CHOKE CABLE ADJUSTMENT
Pull the choke knob out until it stops. Release the knob.The knob should not move.If it moves back on its own, tight­en the friction adjustment slightly. If the knob is difficult to move, loosen the fric­tion adjustment slightly.
REVERSE GATE MECHANISM INSPECTION
1. Remove the engine stop switch lan­yard and ignition key.
2. Put the throttle lever in the idle posi­tion (otherwise the shift lever will not move).
3. Push the shift lever to Forward from the Neutral position while a second person observes shift gate move­ment from outside the boat. The shift gate should lift completely to the stops.
for proper movement of the shift gate. The gate should drop down over the nozzle to the stops.
If reverse gate does not operate smoothly or correctly, ask your autho­rized Yamaha Jet Boat dealer for ser­vice.
FUSE REPLACEMENT
➀ Electrical box ➂ Fuse (10A) ➁ Cap ➃ Fuse holder
The fuse is in the electrical box. To replace the fuse, unscrew the cap and pull out the fuse holder connected to two red leads. Open the fuse holder and replace the fuse.
Accessory Fuse
➀
➁
4. Pull the shift lever back from Forward through Neutral to Reverse.The observer shouldcheck
➀ Fuse (20A) ➁ Accessory lead
The fuse is on the accessory battery lead wire (red with black stripe). To replace the fuse, open the fuse box and replace the fuse.
4-14
M
CAUTION:
WARNING
CAUTION:
WARNING
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________________
Do not use fuses of higher amper­age that those recommended. Substitution of a fuse of improper rating can cause extensive electrical system damage and possible fire.
BATTERY
NOTE: _________________
These general guidelines apply to many commonly used batteries (but not, for example, to maintenance-free batteries). Consult the battery manu­facturer’s instructions before perform­ing battery maintenance.
Check the level of the batter y fluid and see if the terminals are tight. Add dis­tilled water if the fluid level is low.
___________
● Be careful not to place the bat­tery on its side.
● Remove the battery from the boat before adding battery fluid or recharging.
magnesia, beaten egg or vegetable oil. Call physician immediately.
EYES: Flush with water for 15 min­utes and get prompt medical atten­tion.
Batteries produce explosive gases. Keep sparks, flame, cigarettes, etc., away. Ventilate when charging or using in enclosed space. Always shield eyes when working near bat­teries.
KEEP OUT OF REACH OF CHILDREN.
Replenishing the battery fluid
A poorly maintained battery will deteri­orate quickly. The battery fluid should be checked before every outing.
Fill to the manufacturer’s recommend­ed level when necessary. Top up only with distilled water (or pure de-ionized water suitable to use in batteries).
___________
Normal tap water contains minerals which are harmful to a battery; therefore, refill only with distilled water.
Battery electrolyte is poisonous and dangerous, causing severe burns, etc. It contains sulfuric acid. Avoid contact with skin, eyes or clothing.
Antidote: EXTERNAL-Flush with water. INTERNAL-Drink large quantities of
water or milk. Follow with milk of
________________
4-15
M
CAUTION:
WARNING
4
Recharging
● When charging the battery, keep it well away from sparks and open flames, as it gives off explo­sive gases.
● When using a battery charger, connect the battery to the charg­er before you turn on the char ger. This will prevent sparking at the terminals that could ignite bat­tery gases.
● If jump-starting the engine is nec­essary in an emergency, follow the instructions on page 5-3. Improper jump-starting could cause sparking and explosion.
1. Remove the caps from the cells. Add distilled water if necessary to top up the electrolyte to the proper level.
2. Follow the battery manufacturer’s instructions for charging.
Connecting The Battery T erminals
Always make sure the connections are correct when you install the battery in the Jet Boat. Make sure that the breather pipe is properly connected and that it is not damaged or obstruct­ed.
AINTENANCE
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➀
➃
➁
➂
➀ Positive (+) Battery cable (Red) ➁ Negative (–) Battery cable (Black) ➂ Accessory (+) Lead (Red) ➃ Accessory (–) Lead (Black)
BATTERY REMOVAL: Disconnect battery leads and the breather pipe before removing the battery. Disconnect the negative (–) lead first.
BATTERY INSTALLATION: Connect the red (+) lead and accessory red (+) lead to the positive (+) terminal of the battery. Connect the black (-) lead and the black (-) accessory lead to the negative (-) terminal of the battery.
4-16
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SPECIFICATIONS
MODEL
ITEM
VEHICLE CAPACITY
Maximum people on board Number of people 5 Maximum load capacity lb. 930
DIMENSIONS
Length feet / inches 16' 7" Beam feet / inches 7' 7" Draft inches 13" Dry weight lb. 1450
PERFORMANCE
Maximum output HP (kW) / rpm 135 @ 6750 Maximum fuel consumption US gal/h (L / h) 14.0 gal (53 L) Cruising range (full throttle) hr. 2.4
ENGINE
Number of engines 1 Engine type 2-stroke Number of cylinder 3 cylinders Displacement cc (cu. in) 1131 (69) Bore & stroke mm (in.) 84 x 68 (3.30 x 2.68) Compression ratio 6.0:1 Lubrication system Oil injection Cooling system Water-cooled Starting system Electric starter Ignition system Digital C.D.I. Spark plug NGK BR8HS Spark plug gap mm (in.) 0.7 ~0.8 mm (0.028"~0.032) Recommended battery Marine Grade Group 24 Battery capacity Voltage 12 Charging system Flywheel magneto
DRIVE UNIT
Propulsion system Jet pump Jet pump type Axial flow, single stage w/Reverse Impeller rotation Counter clockwise (rear view) Impeller pitch leading / trailing 16.5° / 20° Transmission Direct drive from engine Steering (nozzle) angle 23° +
FUEL AND OIL
Fuel Regular unleaded gasoline Recommended engine oil YAMALUBE 2 STROKE
Fuel tank capacity US gal (L) 34 gal (129 L) Oil tank capacity US gal (L) 2.6 gal (10 L)
UNIT EXS1200 JET BOAT
1°
OUTBOARD OIL, or an equivalent
TC-W3 certified outboard oil
4
4-17
Chapter 5
TROUBLESHOOTING & SPECIAL
PROCEDURES
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
SPECIAL PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3
Towing the Jet Boat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3
Jump Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3
Jet Pump Clean-Out Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-4
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ROUBLESHOOTING
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PECIALPROCEDURES
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TROUBLESHOOTING
If any trouble happens on your Jet Boat, use this section to check for possible cause. If you can­not find the cause or if the procedure for replacement or repair is not described in this owner's manual, ask your Yamaha Jet Boat dealer or qualified mechanic for the proper service.
The Troubleshooting Char t contains PAGE".
Check the possible cause and remedy, and also the referred page for the maintenance steps to solve the trouble.
"TROUBLE", "POSSIBLE CAUSE", "REMEDY",
TROUBLESHOOTING CHART
TROUBLE POSSIBLE CAUSE REMEDY Page
• Starter motor • Fuse Burned out • Replace the fuse and 4-14 does not turn check wiring
over
• Battery
• Jet pump cleanout hatch
• Starter component Yamaha dealer
• Shift lever Not in Neutral • Shift to Neutral 3-13
• Starter motor • Stop switch Lock plate is not • Install lock plate 2-5 turns over/ in place engine does not start
• Fuel cock "OFF" position • Turn the fuel cock to "ON" 2-9
Run down • Recharge 4-16 Poor terminal
connections Not latched • Latch securely
Faulty
• Tighten as required
• Have serviced at
"REFER
4-16
5-4
Empty • Refill as soon as possible* 3-3
• Fuel
• Fuel tank
• Spark plug Fouled or defective • Clean or replace 4-6
• Spark plug cap Not fitted or loose • Fit properly 4-6
• Crankcase
• Fuel filter
• Choke Knob automatically • Tighten the choke cable 4-14
* Turn the fuel cock to "RES" (reserve) to return to shore.
Stale or • Have serviced at contaminated Yamaha dealer
Water or dust • Have service at collected Yamaha dealer
Built-up pressure
Filled with fuel
Filled with water Clogged or water • Have serviced at
collected Yamaha Dealer
returns tension, adjust nut
5-1
• Open the fuel tank filler cap and release pressure
• Have serviced at
Yamaha Dealer
• Crank engine with spark plug out until clean
3-12
4-11
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ROUBLESHOOTING
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PECIALPROCEDURES
TROUBLE POSSIBLE CAUSE REMEDY Page
Engine runs irregularly or Stale or • Have serviced at stalls contaminated Yamaha dealer
• Fuel
• Choke Knob is left pulled • Push it in fully 2-8
• Fuel filter
• Spark plug
• Spark plug cap
• Carburetor
Empty • Refill as soon as possible* 3-3
Oil and gasoline • Have serviced at mixture is too rich Yamaha dealer
Water or dust • Have serviced at collected Yamaha dealer
Fouled or defective • Replace 4-6 Incorrect heat range • Replace 4-6 Gap incorrect • Adjust 4-6 Loose • Fit properly 4-6 Loose electrical
connections Cracked, torn or
damaged Incorrect idle
Adjustment Clogged
• Tighten or connect properly
• Replace
• Adjust 4-12
• Have service at Yamaha dealer
4-6
Engine won't run over 3,500 rpm
Jet Boat speed • Cavitation Jet intake clogged • Clean 5-4 too slow or loses power
* Turn the fuel cock to “RES” (reserve) to return to shore. ** Engine speed will be limited to 3,500 rpm by the overheat warning device.
• Engine overheat** Cooling system
• Engine overheat**
• Fuel Filter Clogged
• Spark plug
• Spark plug caps Loose • Fit properly 4-6
• Fuel
Jet intake clogged • Clean 5-4
clogged
Jet intake clogged • Clean 5-4 Cooling system
clogged
Fouled or defective • Replace 4-6 Incorrect heat range • Replace 4-6 Gap incorrect • Adjust 4-6
Stale or • Have serviced at contaminated Yamaha dealer
• Clean 4-1
• Clean 4-1
• Have serviced at Yamaha dealer
5-2
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WARNING
WARNING
ROUBLESHOOTING
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PECIALPROCEDURES
5
EMERGENCY
PROCEDURES
TOWING THE JET BOAT
➀
Bow eye
➀
The Jet Boat should be towed only if it becomes inoperative.
The towing rope should be long enough so that the Jet Boat will not col­lide with the towing boat when slowing down. A good rule of thumb is a tow rope which is three times the combined length of the towing boat and the Jet Boat.
Tow the Jet Boat using the bow eye only. Tow the boat at a "no wake" speed.
________________
The operator of the towing boat must keep speed to a minimum and avoid traffic or obstacles which could be a hazard to the driver on the Jet Boat.
JUMP STARTING
1
+
–
2
+
–
Negative (–) jumper cable
➀ ➁ Positive (+) jumper cable
If the boat’s battery runs down, the engine can be started in an emergency using a 12-volt battery and jumper cables.
________________
SEVERE INJURY OR DEATH MAY RESULT IF YOU IGNORE ANY OF THE FOLLOWING:
● If blower will not operate, venti­late engine compartment by opening engine compartment hatch for several minutes befo re attempting jump starting.
● Do not connect the negative (–) jumper cable to the negative (–) terminal of the dead battery. Sparks could ignite battery or fuel vapors, which could cause an explosion.
5-3
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WARNING
CAUTION:
CAUTION:
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ROUBLESHOOTING
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PECIALPROCEDURES
To connect the jumper cables:
1. Connect the positive (+) terminal of the dead battery to the positive ter­minal (+)of the booster battery with the positive jumper cable.
2. Connect one end of the negative (–) jumper cable to the negative (–) ter­minal of the booster battery.
3. Connect the other end of the nega­tive (–) cable to an unpainted bolt on the cylinder head.
___________
Be sure all connections are secure and correct before attempting to start the engine. Any wrong connection may damage the electrical system.
4. Start the engine, then disconnect the cables by reversing the above steps.
___________
Do not turn the starter motor for more than 5 seconds. If the engine does not start in 5 seconds, release the starter switch and try again after 15 seconds. Continuous cranking for more than 5 seconds will discharge the battery and the engine will not start. The starter motor may also be damaged if it is engaged continuous­ly for more than five seconds.
JET PUMP CLEAN-OUT PROCEDURE
________________
SEVERE INJURY OR DEATH MAY RESULT IF YOU IGNORE ANY OF THE FOLLOWING:
● Turn off and remove ignition key, remove lanyard, and wait for all movement to stop before remov­ing access port caps.
● Never override the interlock to run engine with hatch open.
● The impeller has sharp edges. Be careful when reaching into jet pump area.
If weeds or debris get caught in the intake or impeller, cavitation can occur, and though the engine speed rises, for­ward thrust will decrease. If this condi­tion is allowed to continue, pump dam­age can occur and the engine may overheat and seize.If there is any sign that the jet intake or impeller is clogged with weeds or debris, follow this cleanout procedure.
1. Turn off and remove ignition key, remove lanyard, and wait for all movement to stop.
2. Lift the hatch on the rear platform.
5-4
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CAUTION:
ROUBLESHOOTING
3. Open the "T" handle hold-down clamps by turning them to the side, then remove the "T" handle from the access port cap wrench. Slide the "T" handle through the upper holes in the wrench.Be sure the wrench is firmly seated on the access port cap handle, then turn the wrench coun­terclockwise to unscrew the cap .Set the cap and wrench where they cannot be accidentally knocked overboard.
4. Remove any weeds or debris from the drive shaft, impeller, pump housing, and steering nozzle. If you cannot remove the debris, consult your Yamaha Jet Boat Dealer.
5. To reinstall the access port cap, first clean any debris from the threads in the access port. Align the groove on
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PECIALPROCEDURES
the plug under the cap with the locating tab in the port, then slide the cap down. Hand-tighten the cap as firmly as possible by turning it clockwise.
6. Set the access port cap wrench in place on the cap handle and slide the "T" handle through the upper holes. Tighten the cap by turning it clockwise up to the 1/4 turn more until either set of lower holes in the wrench shaft align with the clamps. Slide the "T" handle through the lower holes and secure it with both clamps.
5
___________
● Be sure the cap is tightened securely and the cap wrench is locked in place. Otherwise the cap could loosen and be forced out of the access port by water pressure, causing loss of perfor­mance and possible damage.
● The hatch cover has an interlock to shut off the engine should the hatch be accidentally opened during operation. The engine will not restart unless the hatch is closed and latched.
5-5
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