LEHR LP 2.5S Operator's Manual

Propane powered outboard marine engine

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2.5 HP

MODEL:

LP 2.5S

CAUTION: BEFORE OPERATING THIS PRODUCT,

READ AND FOLLOW ALL SAFETY RULES AND

OPERATING INSTRUCTIONS.

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

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

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

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

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

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

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

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

OPERATOR'S MANUAL

PROPANE POWERED

OUTBOARD MARINE ENGINE

16.4 oz Propane Bottle

Not Included

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.

LEHR

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Summary of Contents for LEHR LP 2.5S

Page 1: Table Of Contents
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 16.4 oz Propane Bottle OPERATING INSTRUCTIONS. Not Included FOR SERVICE TABLE OF CONTENTS Call 1-866-941-LEHR (5347) Important Manual Information............1...
Page 2 UNDERSTANDING PROPANE SAFETY WARNINGS FOR PROPANE UNITS NOTE: FIRE/EXPLOSION HAZARD NOTE: Use propane only in containers and/or remote Contains enough gas to cause serious re, explosion, larger tanks speci cally designed and approved for this and burns. To reduce chance of leak, re, or explosion, unit.
Page 3: Important Manual Information
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).
Page 4: General Information
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. LEHR ALL RIGHTS RESERVED 2012-2013...
Page 5 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.
Page 6 A friction device provides adjustable resistance to movement of the throttle grip or the remote control lever, and can be set according to operator preference. To increase resistance, turn the adjuster clockwise. To decrease resistance, turn the adjuster counterclockwise. THROTTLE FRICTION ADJUSTER LEHR ALL RIGHTS RESERVED 2012-2013...
Page 7 To increase resistance, turn the adjuster clockwise. To decrease resistance, turn the adjuster counterclockwise. WARNING: Do not overtighten the friction adjuster. If there is too much resistance, it could be difficult to steer, which could result in an accident. LEHR ALL RIGHTS RESERVED 2012-2013...
Page 8 Then lock the cover by moving the levers downward. LOCK LEVER CARRYING HANDLE A carrying handle is provided on the rear of the outboard motor. lt enables you to carry the outboard motor easily with one hand. CARRYING HANDLE LEHR ALL RIGHTS RESERVED 2012-2013...
Page 9: Installation
Attach one end of the engine restraint cable attachment to the engine clamp and the other to a secure mounting point on the boat. Otherwise the engine could be completely lost if it accidentally falls off the transom. RESTRAINT CABLE LEHR ALL RIGHTS RESERVED 2012-2013...
Page 10: Operation
3-7/8 inches (9.5 cm) in diameter are the correct canisters. NOTE: Do not use smaller diameter canisters as they will not latch securely to the unit and vibration may cause damage to the unit and potentially result in a dangerous leak. LEHR ALL RIGHTS RESERVED 2012-2013...
Page 11 The engine may start and then die, or not start immediately. A few extra pulls of the starter are usually sufficient for the flow to reach the engine. BRASS CONNECTOR PLUG LEHR ALL RIGHTS RESERVED 2012-2013...
Page 13 Excessive trim-out can also cause the propeller to ventilate, which reduces performance further, and the boat may “porpoise” (hop in the water) which could throw the operator and passengers overboard. LEHR ALL RIGHTS RESERVED 2012-2013...
Page 14 2. Slowly tilt the outboard motor down while pulling the tilt support lever up. 3. Loosen the steering friction adjuster by turning it counterclockwise, and adjust the steering friction according to operator preference. CARRYING HANDLE STEERING FRICTION ADJUSTER LEHR ALL RIGHTS RESERVED 2012-2013...
Page 15: Maintenance
When transporting or storing the outboard motor while removed from a boat, keep the outboard motor in the attitudes shown. CARRY FROM THE HANDLE STORE UPRIGHT REST ON THE STEERING HANDLE SIDE LEHR ALL RIGHTS RESERVED 2012-2013...
Page 16 6. Remove the out board motor from the test tank. 7. Install the top cover. 8. Drain the cooling water completely out of the motor. Clean the body thoroughly. WATER SURFACE LOWEST WATER LEVEL ANTI-CAVITATION PLATE LEHR ALL RIGHTS RESERVED 2012-2013...
Page 17 REPLACEMENT PARTS If replacement parts are necessary, use only genuine LEHR parts or parts of the same type and of equivalent strength and materials. Any part of inferior quality may malfunction, and the resulting loss of control could endanger the operator and passengers.
Page 18 Oily or dark color ceramic could indicate a malfunction. Do not attempt to diagnose any problems yourself. Instead, take the outboard motor to a LEHR dealer. You should periodically remove and inspect the spark plug because the electric arcing will cause the spark plug to slowly erode and the gap will increase.
Page 19 If you have difficulty verifying the idle speed, or the idle speed requires adjustment, consult a LEHR dealer or other qualified mechanic. 2. Verify whether the idle speed is set to specification (2000 150 RPM).
Page 20 1. Straighten the cotter pin and pull it out using a pair of pliers. 2. Remove the propeller nut and washer. 3. Remove the propeller and thrust washer. 1. COTTER PIN 2. PROPELLER NUT 3. WASHER 4. PROPELLER 5. THRUST WASHER 6. PROPELLER SHAFT AND SPLINES LEHR ALL RIGHTS RESERVED 2012-2013...
Page 21 PROPELLER SELECTION Your LEHR outboard engine is supplied with a propeller that matches the needs of a boat most suited to an engine of its size. If you feel you are not getting optimal performance from the engine on your boat, a different pitch propeller could help.
Page 22 7. Insert and tighten the gear oil drain screw. INSPECTING AND REPLACING ANODE LEHR outboard motors are protected from corrosion by a sacrificial anode. Inspect the external anode periodically. Remove scales from the surfaces of the anode. Do not paint the anode, as this would render it ineffective.
Page 23: Troubleshooting
A: Inspect spark plug. Clean or replace with recommended type. Q: Is the Idle speed set correctly? A: Adjust Idle screw or have serviced by LEHR dealer. Q: Are fuel joints connected correctly? A: Check for any leaks or smell of propane. Tighten any loose fittings. Replace any faulty fuel lines or connectors.
Page 24 Q: Is ignition wire damaged or poorly connected? A: Check wires for wears and breaks. Q: Have electrical wires failed? A: Have serviced by a LEHR dealer. ENGINE VIBRATES EXCESSIVELY Q: Is propeller damaged? A: Have propeller repaired or replaced.
Page 25 6. Give a strong pull out to crank and start the engine. Repeat if necessary. PROCEDURE FOR SUBMERGED MOTOR If the outboard motor has been submerged, immediately take it to a LEHR dealer. Some corrosion may begin almost immediately. If you cannot immediately take the outboard to a dealer, follow the procedures below in order to minimize engine damage.
Page 26: Specifications
SPECIFICATIONS MODEL LP 2.5S ENGINE TYPE WATER COOLED 4-CYCLE DISPLACEMENT 72.0 CC BORE X STROKE 54 mm X 31.5 mm POWER 2.5 hp (1.8 kW) MAX OPERATING R.P.M. 3000 - 3500 R. P.M. IDLE SPEED 2000 R. P.M. IGNITION TYPE...
Page 27: Warranty
• As the marine engine owner, you should however be aware that LEHR may deny you warranty coverage if your marine engine or a part has failed due to abuse, neglect, or improper maintenance or unapproved modifications.
Page 28 (4) Repair or replacement of any warranted part under the warranty must be performed at no charge to maintenance. As the small o -road engine owner, you should be aware that LEHR may deny you warranty coverage if your small o -road engineor a part has the owner at a warranty station.
Page 30 Inboard marine engine 2009 exhaust emission standards. Personal Watercraft and Outboard marine engines may also comply with these standards. Engines meeting these standards have 90% lower emissions than One Star – Low Emission engines. LEHR INC. 8922 ELLIS AVE LOS ANGELES, CA 90034 1-866-941-LEHR Cleaner Watercraft –...

LEHR LP 2.5S Operator's Manual

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