LEHR 2.5 HP 4-STROKE User Manual

OPERATOR’S MANUAL

PROPANE POWERED

OUTBOARD MARINE ENGINE

2.5 HP MODEL: LP 2.5S

CAUTION: BEFORE OPERATING THIS PRODUCT, READ AND FOLLOW ALL SAFETY RULES AND OPERATING INSTRUCTIONS.

TABLE OF CONTENTS

Important Manual Information....................................................1

General Information.........................................................................2

Installation............................................................................................7

Operation..............................................................................................8

Maintenance......................................................................................13

Troubleshooting...............................................................................21

Specications.....................................................................................24

Warranty..............................................................................................25

FOR SERVICE

Call 1-866-941-LEHR (5347)

WARNING:

THIS PRODUCT CONTAINS CHEMICALS KNOWN TO THE STATE OF CALIFORNIA TO CAUSE CANCER, BIRTH DEFECTS OR OTHER REPRODUCTIVE HARM.

UNDERSTANDING PROPANE

SAFETY WARNINGS FOR PROPANE UNITS

NOTE: Use propane only in containers and/or remote larger tanks specically designed and approved for this unit. Propane is a combustible gas, it is colorless and thus invisible to the naked eye. Propane has a harmless odorant added so that it is possible to smell it. The user should be familiar with the smell of propane (smells like sulfur or rotten eggs). If at any time the smell of propane is identied, turn o the engine. If the leak persists, remove the pro-pane canister. Never attempt to operate a unit that has a suspected leak. Always remove the propane canister from any unit that has a suspected leak.

CARBON MONOXIDE HAZARD

Burning propane makes Carbon Monoxide (CO). CO is invisible, has no smell and can kill you. Operating your outboard engine in an enclosed area can be dangerous.

1. Use only in well ventilated areas. If you experience headache, drowsiness, or nausea, turn unit o and get fresh air quickly.

2. Never use where people are sleeping.

3. Follow unit instructions for proper use.

HANDLING & STORAGE

1. Keep out of reach of children.

2. Never expose cylinder to heat, sparks, or ame.

Never store in direct sunlight. Never store at temperatures above 120 degrees F

(49° C).

3. Never store in living spaces.

4. Always use cylinder until it is completely empty.

5. Never rell a disposable cylinder. Relling may cause

an explosion. Federal law forbids transportation if relled, a penalty up to $500,000, and 5 years imprisonment (49 U.S.C. 5124).

6. Never store in luggage or take on trains or aircraft.

7. To discard, contact local refuse hauler or recycle center.

Never put in re or incinerator. Do not puncture. If your cylinder was purchased with a “Green Key” * or similar device, install it when empty and cylinder may be recycled with other steel items.

NOTE: FIRE/EXPLOSION HAZARD

Contains enough gas to cause serious re, explosion, and burns. To reduce chance of leak, re, or explosion, take the following precautions:

BEFORE USE

1. Check cylinder and appliance seals. Never use with damaged or missing seals. Discard cylinder if dirt or rust particles are in valve area.

2. Turn engine o.

3. Attach cylinder outdoors away from pilot lights, ames, sparks or other ignition sources. These sources can ignite leaking gas.

4. Hand tighten only. Never use tools to tighten. Over tightening can damage seals.

5. Check for leaks. Put soapy water on connections. Look for bubbles. Listen for hiss of escaping gas. Feel for extreme cold. Smell for rotten egg odor. Do not use if leaking.

6. Read and follow operation instructions.

DURING USE

Never use near pilot lights, ames, sparks, or other ignition sources. They can ignite leaking gas.

AFTER USE

1. Turn engine o and let cool.

2. Detach cylinder when not in use.

3. Detach outdoors away from pilot lights, ames, sparks,

or other ignition sources, they can ignite leaking gas.

4. Replace cap to keep valve clean.

IN CASE OF FIRE

1. Leave area quickly and call for help.

2. Let the cylinder burn out.

WARNING:

PROPANE IS HIGHLY FLAMMABLE, AND ITS VAPORS CAN EXPLODE IF IGNITED.

* Green Key- is a trademark of the Coleman company

IMPORTANT MANUAL INFORMATION

TO THE OWNER

Thank you for purchasing a LEHR propane outboard engine. This operator’s manual explains information needed for proper operation, maintenance, and care of your LEHR outboard motor. Understanding and following these instructions will help you get the most trouble free use from your LEHR outboard. If you have any questions about operation or maintenance of your outboard motor please contact LEHR at 1-866-941-LEHR (5347).

READ THE OPERATOR’S MANUAL BEFORE OPERATING YOUR LEHR OUTBOARD MOTOR

Read this manual. Read all manuals supplied with the boat. Read all labels on the outboard motor and the boat. If you need any additional information, contact your LEHR dealer or call 1-866-941-LEHR (5347).

WARNING

Warning symbol indicates: ATTENTION! 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 outboard motor.

NOTE

A “NOTE” provides information to make procedures easier or clearer. To ensure long product life, LEHR recommends that you use the product and perform the specified periodic inspections and maintenance by correctly following the instructions in the operator’s manual. Note that if you do not follow these instructions, not only may the product malfunction, but the warranty will also be voided.

This product is covered under one or more of the following U.S. Patents: 7424886 B1, 7631636 B2, 7730868 B2, 7690347 B2, 7739996 B2, 7874275 B1, 7854219 B2, 7735464 B2. Other Patents Pending.

LEHR |

GENERAL INFORMATION

• Before mounting or operating the outboard motor, completely read manual and labels. Reading them will give you a good understanding of the motor and its operation.

• Before operating the boat, read any owner's or operator's manuals supplied with it and all labels. Be sure you understand all items from the boat manual as well as this engine manual before operating.

• Do not over power the boat with this outboard motor. Overpowering the boat could result in damage to the boat and injury to all occupants. The rated power of the outboard should be equal to or less than the rated horsepower capacity of the boat. If the rated horsepower capacity of the boat is unknown, consult the dealer or boat manufacturer.

• Do not attempt to modify the outboard. Modifications could make the motor unsafe to use and will void the warranty. Incorrect propeller selection and incorrect use may not only cause engine damage, but also adversely affect fuel consumption. Consult your dealer for correct use.

• Never operate after drinking alcohol or taking drugs. About 50% of all boating fatalities involve intoxication.

• Have an approved personal flotation device (PFD) on board for every occupant. It is a good idea to wear a PFD whenever boating. Children and non-swimmers should always wear PFD's, and every one should wear PFD's when there are potentially hazardous boating conditions.

• Propane is highly flammable, and its vapors are flammable and explosive. Handle and store propane carefully. Make sure there are no fumes or leaking fuel before starting the engine.

• This product emits exhaust gases which contain carbon monoxide, a colorless, odorless gas which may cause brain damage or death when inhaled. Symptoms include nausea, dizziness, and drowsiness. Keep cockpit and cabin areas well ventilated. Avoid blocking exhaust outlets.

• Check throttle, shift, and steering for proper operation before starting the engine.

• Attach the engine stop switch lanyard cord to a secure place on your clothing, or your arm or leg while operating. If you accidentally leave the helm, the cord will pull from the switch, stopping the engine.

• Know the marine laws and regulations where you will be boating and obey them.

• Know about the weather forecast. Check weather before boating. Avoid boating in hazardous weather.

• Tell some one where you are going: leave a Float Plan with a responsible person. Be sure to cancel the Float Plan when you return.

• Be aware, alert, and use good judgment when boating. Know your abilities, and be familiar with how your boat handles under the different boating conditions you may encounter. Operate within your limits, and the limits of your boat. Always operate at safe speeds, and watch carefully for obstacles and other traffic.

• Always watch carefully for swimmers.

• Stay away from swimming areas.

• When a swimmer is in the water near you shift into neutral and shut off the engine.

• Do not illegally discard empty containers used to replace or replenish oil. For the correct processing of empty containers ,consult the dealer where you purchased the oil.

• When replacing oils used to lubricate the product (engine or gear oil), be sure to wipe away any spilled oil. Never pour oil without using a funnel or similar device. If necessary, verify the necessary replacement procedure with the dealer.

• Never illegally discard (dump) disposable propane tanks. Consult your local city recycling center on discarding empty propane tanks.

GENERAL INFORMATION

SERIAL NUMBER EMISSIONS LABEL WARNING LABEL

The outboard motor serial number is stamped on the label attached to the clamp bracket. Record your outboard motor serial number, you will need it when ordering spare parts from your LEHR dealer or for reference if your outboard motor is stolen.

BASIC COMPONENTS

NOTE: May not be exactly as shown, also may not be included as standard equipment on all models.

1. TOP COVER

2. TOP COVER LOCK LEVER

3. CARRYING HANDLE

4. STEERING FRICTION SCREW

5. ANTI-CAVITATION PLATE

6. PROPELLER

7. COOLING WATER INLET

8. TRIM ROD

9. CLAMP BRACKET

10. THROTTLE FRICTION ADJUSTER

11. THROTTLE LEVER / TILLER HANDLE

12. BOTTLE BRACKET CLAMP

13. PULL START HANDLE

14. ENGINE SHUT-OFF SWITCH

15. REMOTE PROPANE CONNECTOR

16. CLAMP SCREWS

17. ROPE ATTACHMENT

18. GEAR SHIFT LEVER

19. RUBBER TANK PLUG

20. BRASS CONNECTOR PLUG

GENERAL INFORMATION

FUEL TANK

Use a standard 16.4 oz. (1 lb.) propane canister connected to the rear propane tank position or any larger DOT approved propane tank connected to the remot e propane connector with an approved high pressure propane hose. Do not use a hose assembly that includes a press ure regulator.

16.4 OUNCE

1 LB. / 465 GRAMS

TILLER HANDLE

To change direction, move the tiller handle to the left or right as necessary.

TILLER HANDLE

REMOTE PROPANE TANK

GEAR SHIFT LEVER

Your outboard has two gear shift positions to provide operation: Forward(F ), and Neutral(N). Reduce throttle speed to idle speed. Always shift outboard into gear with a quick motion.

THROTTLE GRIP

The throttle grip is on the tiller handle. Turn the grip counterclockwise to increase speed and clockwise to decrease speed.

THROTTLE GRIP

THROTTLE FRICTION ADJUSTER

A friction device provides adjustable resist ance to movement of the throttle grip or the remot e control lever, and can be set according to operator preference. To increase resistance, turn the adjuster clockwise. To decrease resistance, turn the adjuster coun

terclockwise.

THROTTLE FRICTION

ADJUSTER

GENERAL INFORMATION

WARNING: Do not overt ighten the throttle friction adjuster. If there is too much resistance, it could be difficult to move throttle lever or grip, which could result in an accident. When constant speed is desired, tighten the adjuster just enough to maintain the desired throttle setting.

ENGINE STOP SWITCH

The engine stop switch lock must be attac hed to the engine stop switch for the engine to run. The hook should be attached to a secure place on the operators clothing, or arm or leg. Should the operator fall over board or leave the helm, the hook will pull out the stop switch lock, stopping ignition to the engine. This will prevent the boat from running away under power.

ENGINE STOP SWITCH

ENGINE STOP SWITCH LANYARD

WARNING: Attach the engine st op switch hook to a secure place on your clothing, or your arm or leg while operating. Do not attach the hook to clothing that could tear loose. Do not rout e the

pulling the lanyard during normal operation. Los s of engine power means the loss o f most steering control. Also, without engine power, the boat could slow rapidly. This could cause people and objects in the boat to be thrown forward.

NOTE: The engine cannot be started wit h the stop switch lock removed.

lanyard where it could be come entangled, preventing it from functioning. Avoid a ccidentally

ENGINE STOP SWITCH LOCK

HOOK

ENGINE STOP BUTTON

To stop the engine, push and hold the engine stop button or pull the lanyard out from the switch.

ENGINE STOP

BUTTON

MANUAL STARTER HANDLE

To start the engine, first gently pull the handle out until resistanc e is felt. From that position, then pull the handle straight out quickly to crank the engine.

STEERING FRICTION ADJUSTER

A friction device provides adjust able resistance to the s teering mechanism, and can be set acc ording to operator preference. An adjust ing screw or bolt is located on the swiv el bracket.

To increase resistance, turn the adjuster clockwise. To decrease resistance, turn the adjuster counterclockwise.

WARNING steer, which could result in an accident .

Do not overtighten the friction adjuster. If there is too much resistanc e, it could be difficult to

GENERAL INFORMATION

LOCK LEVER

TILT LOCK LEVER

TRIM ROD

The position of the trim rod determines the angle o f the outboard motor in relation to the transom.

TILT LOCK MECHANISM

The tilt support lock keeps the outboard mot or in the tilted up posit ion. If the outboard engine needs to be tilted up out of the water or to get the propeller higher than the bottom of the boat, push down on the tiller handle while lifting up on carrying handle. Once the engine is all the way up, the tilt lock mechanism will engage and lock the engine in the up posit ion. To release the lock to lower the engine, pull up on the carrying handle to lift the engine up as far as it will go. While the engine is all the way up, lift up on the lock lever to disengage it while lowering the engine.

WARNING: Do not use the tilt support bar when trailering the boat. The outboard motor could shake loose from the tilt support and fall. If the motor cannot be trailered in the normal running position, use an additional support device to secure it in the tilt position

TOP COVER LOCK LEVER

To remove the engine top cover, remove the 1 lb. propane tank or rubber plug. Pull the lock levers upwards from the bottom and unhook from the top cover. Then lift the cover. When installing the cover, check to be sure it fits properly on the rubber seal. Then lock the cover by moving the levers downward.

CARRYING HANDLE

A carrying handle is provided on the rear of the outboard mot or. lt enables you to carry the outboard motor easily with one hand.

CARRYING HANDLE

INSTALLATION

Incorrect engine height or obstructions to smooth water flow in front of the propeller can cause propeller cavita tion while the boat is cruising. Cavit ation oc curs when the engine speeds up momentarily and suddenly slows as the propeller engages the water. Severe engine damage may result if the motor is operated continuously while cavit ating. During water test ing check the buoyancy of the boat, at rest, with i ts maximum load. Check that the static water level on the exhaust housing is low enough to prevent wat er entry in to the power head, when water rises due to waves when the outboard is not running.

MOUNTING THE OUTBOARD MOTOR

• Overpowering a boat could cause severe instability. Do not i nstall an outboard motor with more horsepower than the maximum rating on the capacit y plate of the boat. If the boat does not have a capacity plate, consult the boat manufacturer.

• This section is int ended as reference only. It is no possible boat and motor combinat ion. Proper mounting depends in part on experience and the specific boat and motor combination. Improper mount ing of the outboard motor could result in hazardous conditions, or poor handling, loss of control, or boat damage.

• Your dealer or ot her person experienced in proper out board mot or mountings should show you how to mount your motor. Mount the outboard mot or on the center line (keel line) of the boat, and ensure that the boat itself is well balanced. Otherwise the boat will be hard to steer. For boats without a keel or which are asymmetrical, consult your dealer.

t possible to provide complet e instructions for every

ANTI-CAVITATION PLATE

CENTER LINE (KEEL LINE)

MOUNTING HEIGHT

To run your boat a t best efficiency, the water resist ance (drag) of the boat and outboard motor must be made as little as possible. The mount ing height of the outboar d motor greatly affects the wat er resistance. If the mounting tips cut the air, the engine speed will rise abnormally and cause the engine to over heat. If the mounting height is too low, the water resistance will increase and thereby reduce engine efficiency. Mount the outboard motor so that the ant i-cavitation plat e is between the bottom of the boat and a level 25mm (1in.) below it.

The optimum mounting height of the outboard mot or is affected b y the boat and motor combination and the desired use. Test runs at different heights can help determine the optimum mounting height. Consult your boat manufacturer for further informat ion on determining the proper mounting height.

CLAMPING THE OUTBOARD MOTOR

1. Place the outboard motor on the transom so that it is positioned as close to the center as possible. Tighten the transom clamp screws evenly and securely. Occasionall y check the clamp screws for tightness during

operation of the outboard motor because they could become loose due to engine vibration.

WARNING: Loose clamp screws could allow the outboard motor to fall off or move on the transom. This could cause loss of cont rol and serious injury. Make sure the transom screws are tightened securely. Occasionally check the screws for tightness during operat ion.

2. If an engine restraint cable or chain attachment is equipped on your boat, the cable or chain should be used. Attach one end of the engine restraint cable attachment to the engine clamp and the o ther to a secure mounting point on the boat. Otherwise the engine could be complet ely lost if it accidentally falls off the transom.

height is too high, cavitation tends to occur, thus reducing the propulsion, and i f the propeller

RESTRAINT CABLE

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