Yamaha YFM350FXS Owner's Manual
EBU00941
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INTRODUCTION
Congratulations on your purchase of the Yamaha YFM350FX. It represents the result of many
years of Yamaha experience in the production of fine sporting, touring, and pace-setting racing
machines. With the purchase of this Yamaha, you can now appreciate the high degree of craftsmanship and reliability that have made Yamaha a leader in these fields.
This manual will provide you with a good basic understanding of the features and operation of this
ATV.
This manual includes important safety information. It provides information about
special techniques and skills necessary to ride your ATV.
It also includes basic maintenance
and inspection procedures. If you have any questions regarding the operation or maintenance of
your ATV, please consult a Yamaha dealer.
AN IMPORTANT SAFETY MESSAGE:
●
READ THIS MANUAL TOGETHER WITH TIPS FOR THE ATV RIDER CAREFULLY AND
COMPLETELY BEFORE OPERATING YOUR ATV. MAKE SURE YOU UNDERSTAND ALL
INSTRUCTIONS.
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PAY CLOSE ATTENTION TO THE WARNING AND CAUTION LABELS ON THE ATV.
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NEVER OPERATE AN ATV WITHOUT PROPER TRAINING OR INSTRUCTION. FREE
TRAINING IS AVAILABLE TO ANYONE WHO BUYS A NEW ATV. CALL 1-800-887-2887
FOR MORE INFORMATION.
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IMPORTANT MANUAL INFORMATION
FAILURE TO FOLLOW THE WARNINGS CONTAINED IN THIS MANUAL CAN RESULT IN
SERIOUS INJURY OR DEATH.
Particularly important information is distinguished in this manual by the following notations:
The Safety Alert Symbol means ATTENTION! BECOME ALERT!
YOUR SAFETY IS INVOLVED!
WARNING
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 machine.
CAUTION:
A CAUTION indicates special precautions that must be taken to
avoid damage to the machine.
NOTE:
A NOTE provides key information to make procedures easier or clearer.
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IMPORTANT NOTICE
This machine is designed and manufactured for OFF-ROAD use only. It is illegal and unsafe to
operate this machine on any public street, road or highway.
This machine complies with all applicable OFF-ROAD noise level and spark arrester laws and
regulations in effect at the time of manufacture.
Please check your local riding laws and regulations before operating this machine.
EBU00981
AFFIX DEALER
LABEL HERE
YFM350FXS
OWNER’S MANUAL
© 2003 by Yamaha Motor Corporation,
U.S.A.
1st edition, February 2003
All rights reserved.
Any reprinting or unauthorized use
without the written permission
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EBU00014
WARNING
Indicates a potential hazard that could
result in serious injury or death.
CONTENTS
LOCATION OF THE WARNING
AND SPECIFICATION LABELS....... 1-1
SAFETY INFORMATION.................. 2-1
DESCRIPTION AND MACHINE
IDENTIFICATION ............................. 3-1
Identification number records.......... 3-2
Key identification number................ 3-2
Vehicle identification number .......... 3-3
1
2
3
CONTROL FUNCTIONS...................4-1
Main switch ......................................4-1
Indicator and warning lights.............4-2
Oil temperature warning light
checking method............................4-3
Handlebar switches .........................4-4
Throttle lever ....................................4-5
Speed limiter ....................................4-6
Front brake lever..............................4-7
Rear brake pedal and lever .............4-7
Parking brake...................................4-8
Shift pedal ......................................4-10
Reverse knob.................................4-10
Recoil starter..................................4-11
Fuel tank cap .................................4-12
Fuel cock........................................4-12
Starter (choke) ...............................4-13
Seat................................................4-14
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PRE-OPERATION CHECKS ........... 5-1
Front and rear brakes ..................... 5-3
Fuel ................................................. 5-4
Engine oil ........................................ 5-6
Final gear oil.................................... 5-7
Differential gear oil .......................... 5-7
Throttle lever ................................... 5-7
Fittings and fasteners...................... 5-7
Lights............................................... 5-8
Switches.......................................... 5-8
Battery............................................. 5-8
Tires ................................................ 5-8
How to measure tire pressure....... 5-10
Tire wear limit................................ 5-11
OPERATION..................................... 6-1
Starting a cold engine ..................... 6-1
Starting a warm engine................... 6-3
To decelerate................................... 6-7
Engine break-in ...............................6-7
Parking............................................. 6-8
Parking on a slope........................... 6-9
Accessories and loading ...............6-10
RIDING YOUR ATV .......................... 7-1
Getting to know your ATV ...............7-3
Ride with care and good
judgement...................................... 7-4
Be careful where you ride.............. 7-16
Turning your ATV .......................... 7-23
Climbing uphill ............................... 7-25
Riding downhill ..............................7-30
Crossing a slope............................ 7-32
Crossing through shallow water .... 7-34
Riding over rough terrain............... 7-36
Sliding and skidding....................... 7-38
5
6
7
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PERIODIC MAINTENANCE AND
ADJUSTMENT.................................. 8-1
Owner’s manual and tool kit............ 8-1
Periodic maintenance/
lubrication ...................................... 8-3
Engine oil......................................... 8-5
Final gear oil .................................... 8-9
Differential gear oil replacement ...8-11
Axle boots...................................... 8-15
Spark plug inspection.................... 8-15
Air filter cleaning............................ 8-16
Spark arrester cleaning ................. 8-19
Carburetor adjustment................... 8-20
Idle speed adjustment ................... 8-21
Valve clearance adjustment.......... 8-21
Reverse lock release cable
adjustment................................... 8-22
Throttle lever adjustment............... 8-22
Rear brake and parking brake
adjustment ...................................8-26
Adjusting the rear brake light
switch ...........................................8-29
Clutch adjustment ..........................8-29
Cable inspection and lubrication....8-30
Brake and shift pedal/
brake lever lubrication..................8-30
Wheel removal...............................8-31
Wheel installation...........................8-31
Battery............................................8-32
Replenishing the battery fluid ........8-34
Fuse replacement ..........................8-35
Replacing a headlight bulb ............8-37
Headlight beam adjustment...........8-38
Tail/brake light bulb replacement...8-38
Troubleshooting .............................8-40
Troubleshooting chart ....................8-41
8
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SPECIFICATIONS.......................... 10-1
NOISE REGULATION.................... 11-1
MAINTENANCE RECORD ............ 12-1
ATV LIMITED WARRANTY............ 13-1
YAMAHA EXTENDED SERVICE
(Y.E.S.) ........................................... 14-1
10
11
12
13
14
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EBU00464
LOCATION OF THE WARNING AND
SPECIFICATION LABELS
Read and understand all of the labels on your
machine. They contain important information
for safe and proper operation of your ATV.
Never remove any labels from your ATV. If a
label becomes difficult to read or comes off, a
replacement label is available from your
Yamaha dealer.
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WARNING
4KB-21696-21
IMPROPER TIRE PRESSURE OR OVERLOADING CAN
CAUSE LOSS OF CONTROL.
LOSS OF CONTROL CAN RESULT IN SEVERE
INJURY OR DEATH.
OPERATING TIRE PRESSURE : Set with tires cold
• Recommended : FRONT : 25 kPa, { 0.25 kgf/cm
2
}, 3.6 psi
REAR : 25 kPa, { 0.25 kgf/cm
2
}, 3.6 psi
• Minimum : FRONT : 22 kPa, { 0.22 kgf/cm
2
}, 3.2 psi
REAR : 22 kPa, { 0.22 kgf/cm
2
}, 3.2 psi
• Never set tire pressure below minimum.
It could cause the tire to dislodge from the rim.
LOADING / TRAILER TOWING
• Cargo or a trailer can affect stability and handling.
Read owner's manual before loading or towing.
• When loading with cargo or towing a trailer :
Reduce speed and allow more room to stop.
Avoid hills and rough terrain.
• Maximum Vehicle Load : 180 kg, (397 lbs).
Includes weight of operator, cargo and accessories
(and if applicable, trailer tongue weight).
WARNING
NEVER ride as a
passenger.
WARNING
Improper ATV use can result in SEVERE
INJURY or DEATH.
ALWAYS USE
AN APPROVED
HELMET AND
PROTECTIVE
GEAR
NEVER USE
ON PUBLIC
ROADS
NEVER CARRY
PASSENGERS
NEVER USE
WITH DRUGS
OR ALCOHOL
NEVER operate :
• without proper training or instruction.
• at speeds too fast for your skills or
the conditions.
• on public roads-a collision can occur
with another vehicle.
• with a passenger-passengers affect balance
and steering and increase risk
of losing control.
ALWAYS :
•
use proper riding techniques to avoid
vehicle overturns on hills and rough terrain
and in turns.
• avoid paved surfaces-pavement may
seriously affect handling and control.
LOCATE AND READ OWNER'S MANUAL.
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4
UNDER
WARNING
5FE-21697-01
NEVER operate this ATV if you are
under age 16.
Operating this ATV if you are under
the age of 16 increases your chance
of severe injury or death.
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SAFETY INFORMATION
EBU00924
AN ATV IS NOT A TOY AND CAN BE HAZARDOUS TO OPERATE.
An ATV handles differently
from other vehicles including motorcycles and cars. A collision or rollover can occur quickly, even
during routine maneuvers such as turning and riding on hills or over obstacles, if you fail to take
proper precautions. SEVERE INJURY OR DEATH can result if you do not follow these instructions:
●
Read this manual and all labels carefully and follow the operating procedures described.
●
Never operate an ATV without proper training or instruction.
Take a Training Course.
Beginners should receive training from a certified instructor. Contact an authorized ATV dealer or call
1-800-887-2887 to find out about the training courses nearest you.
●
Always follow the age recommendation:
- A child under 16 years old should never operate an ATV with engine size greater than 90cc.
●
Never allow a child under age 16 to operate an ATV without adult supervision, and never allow
continued use of an ATV by a child if he or she does not have the abilities to operate it safely.
●
Never carry passenger on an ATV.
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●
Always avoid operating an ATV on any paved surfaces, including sidewalks, driveways, parking lots and streets.
●
Never operate an ATV on any public street, road or highway, even a dirt or gravel one.
●
Never operate an ATV without wearing an approved motorcycle helmet that fits properly. You
should also wear eye protection (goggles or face shield), gloves, boots, long-sleeved shirt or
jacket, and long pants.
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Never consume alcohol or drugs before or while operating this ATV.
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Never operate at speeds too fast for your skills or the conditions. Always go at a speed that is
proper for the terrain, visibility and operating conditions, and your experience.
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Never attempt wheelies, jumps, or other stunts.
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Always inspect your ATV each time you use it to make sure it is in safe operating condition. Always follow the inspection and maintenance procedures and schedules described in this manual.
●
Always keep both hands on the handlebars and both feet on the footboards of the ATV during
operation.
●
Always go slowly and be extra careful when operating on unfamiliar terrain. Always be alert to
changing terrain conditions when operating the ATV.
●
Never operate on excessively rough, slippery or loose terrain until you have learned and prac-
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●
Always follow proper procedures for turning as described in this manual. Practice turning at low
speeds before attempting to turn at faster speeds. Do not turn at excessive speed.
●
Never operate the ATV on hills too steep for the ATV or for your abilities. Practice on smaller
hills before attempting larger hills.
●
Always follow proper procedures for climbing hills as described in this manual. Check the terrain carefully before you start up any hill. Never climb hills with excessively slippery or loose
surfaces. Shift your weight forward. Never open the throttle suddenly or make sudden gear
changes. Never go over the top of a hill at high speed.
●
Always follow proper procedures for going down hills and for braking on hills as described in
this manual. Check the terrain carefully before you start down any hill. Shift your weight backward. Never go down a hill at high speed. Avoid going down a hill at an angle that would cause
the vehicle to lean sharply to one side. Go straight down the hill where possible.
●
Always follow proper procedures for crossing the side of a hill as described in this manual.
Avoid hills with excessively slippery or loose surfaces. Shift your weight to the uphill side of the
ATV. Never attempt to turn the ATV around on any hill until you have mastered the turning
technique described in this manual on level ground. Avoid crossing the side of a steep hill if
possible.
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●
Always use proper procedures if you stall or roll backwards when climbing a hill. To avoid stalling, use proper gear and maintain a steady speed when climbing a hill. If you stall or roll backwards, follow the special procedure for braking described in this manual. Dismount on the
uphill side or to a side if pointed straight uphill. Turn the ATV around and remount, following the
procedure described in this manual.
●
Always check for obstacles before operating in a new area. Never attempt to operate over
large obstacles, such as large rocks or fallen trees. Always follow proper procedures when operating over obstacles as described in this manual.
●
Always be careful when skidding or sliding. Learn to safely control skidding or sliding by practicing at low speeds and on level, smooth terrain. On extremely slippery surfaces, such as ice,
go slowly and be very cautious in order to reduce the chance of skidding or sliding out of control.
●
Never operate an ATV in fast flowing water or in water deeper than that recommended in this
manual. Remember that wet brakes may have reduced stopping ability. Test your brakes after
leaving water. If necessary, apply them several times to let friction dry out the linings.
●
Always be sure there are no obstacles or people behind you when you operate in reverse.
When it is safe to proceed in reverse, go slowly.
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●
Always use the size and type tires specified in this manual.
●
Always maintain proper tire pressure as described in this manual.
●
Never modify an ATV through improper installation or use of accessories.
●
Never exceed the stated load capacity for an ATV. Cargo should be properly distributed and
securely attached. Reduce speed and follow instructions in this manual for carrying cargo or
pulling a trailer. Allow greater distance for braking.
FOR MORE INFORMATION ABOUT ATV SAFETY,
call the Consumer Products Safety Com-
mission at 1-800-638-2772, or the ATV Distributor’s Safety Hotline at 1-800-852-5344.
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WARNING
POTENTIAL HAZARD
Improper handling of gasoline.
WHAT CAN HAPPEN
Gasoline can catch fire and you could
be burned.
HOW TO AVOID THE HAZARD
Always turn off the engine when refueling. Do not refuel right after the engine
has been running and is still very hot.
Do not spill gasoline on the engine or
exhaust pipe/muffler when refueling.
Never refuel while smoking, or while in
the vicinity of sparks, open flames, or
other sources of ignition such as the pilot lights of water heaters and clothes
dryers.
When transporting the ATV in another
vehicle, be sure it is kept upright and
that the fuel cock is in the “OFF” position. Otherwise, fuel may leak out of the
carburetor or fuel tank.
WHAT CAN HAPPEN
Gasoline is poisonous and can cause
injuries.
HOW TO AVOID THE HAZARD
If you should swallow some gasoline or
inhale a lot of gasoline vapor, or get
some gasoline in your eyes, see your
doctor immediately. If gasoline spills on
your skin, wash with soap and water. If
gasoline spills on your clothing, change
your clothes.
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WARNING
POTENTIAL HAZARD
Starting or running the engine in a
closed area.
WHAT CAN HAPPEN
Exhaust fumes are poisonous and may
cause loss of consciousness and death
within a short time.
HOW TO AVOID THE HAZARD
Always operate your ATV in an area with
adequate ventilation.
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DESCRIPTION AND MACHINE IDENTIFICATION
1. Spark arrester
2. Battery
3. Rear brake light switch
4. Headlight
5. Rear brake pedal
6. Fuel cock
7. Starter (choke)
8. Seat lock lever
9. Storage box
10. Tail/brake light
11. Recoil starter
12. Shift pedal
13. Rear brake lever
14. Parking brake
15. Main switch
16. Reverse knob
17. Speed limiter
18. Front brake lever
19. Throttle lever
20. Handlebar switches
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EBU00600
Identification number records
Record the key identification number, vehicle
identification number and model label information in the spaces provided for assistance
when ordering spare parts from a Yamaha
dealer or for reference in case the vehicle is
stolen.
1. KEY IDENTIFICATION NUMBER:
2. VEHICLE IDENTIFICATION NUMBER:
3. MODEL LABEL INFORMATION:
EBU00035
Key identification number
The key identification number is stamped on
the key as shown in the following illustration.
This number can be used for ordering a new
key.
1. Key identification number
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EBU00036
Vehicle identification number
The vehicle identification number is stamped
into the frame.
1. Vehicle identification number
NOTE:
The vehicle identification number is used to
identify your machine.
EBU00787
Model label
The model label is affixed to the location in the
illustration. Record the information on this label in the space provided. This information will
be needed to order spare parts from your
Yamaha dealer.
1. Model label
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EBU00039
CONTROL FUNCTIONS
WARNING
Indicates a potential hazard that could
result in serious injury or death.
EBU09420
Main switch
Functions of the respective switch positions
are as follows:
ON:
The engine can be started only at this position
and the headlights and taillight come on when
the light switch is on.
OFF:
All electrical circuits are switched off. The key
can be removed in this position.
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Indicator and warning lights
1. Reverse indicator light “R”
2. Neutral indicator light “N”
3. Oil temperature warning light “”
EBU00602
Reverse indicator light “R”
This indicator light comes on when the transmission is in reverse.
EBU01140
Oil temperature warning light “”
When the oil temperature reaches a specified
level, this light comes on to warn that the engine oil temperature is too hot. If the light
comes on during operation, stop the engine
as soon as it is safe to do so and allow the engine to cool down for about 10 minutes.
CAUTION:
_
●
The engine may overheat if the ATV is
overloaded. If this happens, reduce
the load to specification.
●
Restart after making sure that the light
is out. Continuous use while the light
is on may cause damage to the engine.
_
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EBU00733
Oil temperature warning light checking method
ACB-10E
Turn the main switch to “ON” and the
engine stop switch to “RUN”.
Oil temperature warning
light does not come on.
Oil temperature warning
light comes on.
Check engine oil temperature.
Oil temperature warning
light does not come on.
Engine oil temperature and
electrical circuit are OK. Go
ahead with riding.
Push start switch with the
transmission in neutral.
Ask a Yamaha dealer to
inspect the electrical circuit.
Oil temperature is low.
Allow to cool.
Oil temperature is high.
Oil temperature
warning light comes
on momentarily.
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EBU00053
Handlebar switches
1. Light switch “LIGHTS”
2. Engine stop switch “ENG. STOP”
3. Start switch “START”
EBU11580
Engine stop switch “ENG. STOP”
Make sure that the engine stop switch is in the
“RUN” position before starting the engine.
EBU00647
Start switch “START”
The starter motor cranks the engine when this
switch is pushed.
CAUTION:
See the starting instructions on page 6-1
prior to starting the engine.
EBU11560
Light switch “LIGHTS”
Set the switch to the “LO” position to turn on
the low beam and the taillight.
Set the switch to the “HI” position to turn on
the high beam and the taillight.
Set the switch to the “OFF” position to turn off
all of the lights.
CAUTION:
_
Do not use the headlights with the engine
turned off for more than thirty minutes.
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EBU00062
Throttle lever
Once the engine is running, movement of the
throttle lever will increase the engine speed.
Regulate the speed of the machine by varying
the throttle position. Because the throttle is
spring-loaded, the machine will decelerate,
and the engine will return to an idle any time
the hand is removed from the throttle lever.
1. Throttle lever
Before starting the engine, check the throttle
to be sure it is operating smoothly. Make sure
it returns to the idle position as soon as the lever is released.
WARNING
POTENTIAL HAZARD
Malfunction of throttle.
WHAT CAN HAPPEN
The throttle could be hard to operate,
making it difficult to speed up or slow
down when you need to. This could
cause an accident.
HOW TO AVOID THE HAZARD
Check the operation of the throttle lever
before you start the engine. If it does not
work smoothly, check for the cause.
Correct the problem before riding the
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EBU11590
Speed limiter
The speed limiter keeps the throttle from fully
opening, even when the throttle lever is
pushed to the maximum. Turning in the adjusting screw limits the maximum engine power available and decreases the maximum
speed of the ATV.
1. Locknut 2. Adjusting screw a. 12 mm (0.47 in)
WARNING
POTENTIAL HAZARD
Improper adjustment of the speed limiter and throttle.
WHAT CAN HAPPEN
The throttle cable could be damaged.
Improper throttle operation could result.
You could lose control, have an accident or be injured.
HOW TO AVOID THE HAZARD
Do not turn the adjusting screw out
more than 12 mm (0.47 in). Always make
sure the throttle lever free play is adjusted to 3–5 mm (0.12–0.20 in). See page
8-22.
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EBU00070
Front brake lever
The front brake lever is located on the right
handlebar. Pull it toward the handlebar to apply the front brake.
1. Front brake lever
EBU00073
Rear brake pedal and lever
1. Rear brake pedal
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EBU00078
Parking brake
Use the parking brake when you have to start
the engine or park the machine, especially on
a slope. Apply the rear brake lever while
pushing the button, then push in the lock plate
to apply the parking brake. Squeeze the rear
brake lever to release the parking brake.
NOTE:
When the parking brake is used, engine
speed is limited to 2,300 r/min. Be sure the
parking brake is released before moving the
throttle lever. Otherwise, the engine will misfire, preventing normal operation.
1. Button 2. Lock plate
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