LEHR LP 2.5S Operator'S Manual Download Page 26

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LEHR

SPECIFICATIONS

MODEL LP 2.5S

ENGINE TYPE

WATER COOLED 4-CYCLE

DISPLACEMENT

72.0 CC

*ALL SPECIFICATIONS ARE BASED ON THE LATEST PRODUCT INFORMATION AT THE TIME OF PRINTING.

WE RESERVE THE RIGHT TO MAKE CHANGES AT ANY TIME WITHOUT NOTICE.

BORE X STROKE

54 mm X 31.5 mm

GEAR RATIO

2.08

GEAR SHIFT

F – N

TRANSOM HEIGHT

15” (381 mm)

MAX OPERATING R.P.M.

3000 - 3500 R. P.M.

IDLE SPEED

2000 R. P.M.

IGNITION TYPE

ELECTRONIC

IGNITION SWITCH

TETHER

VALVE CLEARANCE IN and EX (COLD)

SPARK PLUG GAP

0.020-0.024 INCH (0.5-0.6 mm)

LUBRICATION

CRANKCASE OIL CAPACITY

0.37 US qt (0.35L)

FUEL

STARTER

PULL CHORD AUTO REWIND

.003 - .005 in (0.08-0.12mm)

PROPANE

4 STROKE 10W-30

SPARK PLUG TORQUE SPEC

18.4 ft•lb (25.0 N•m)

GEAR OIL CAPACITY

2.54 fl oz. (0.075L)

SPARK PLUG TYPE

NGK BR 6 H8

POWER

2.5 hp (1.8 kW)

WEIGHT

37.9 lbs (17.2 kg)

Summary of Contents for LP 2.5S

Page 1: ...E STATE OF CALIFORNIA TO CAUSE CANCER BIRTH DEFECTS OR OTHER REPRODUCTIVE HARM WARNING Important Manual Information 1 General Information 2 Installation 7 Operation 8 Maintenance 13 Troubleshooting 21 Specifications 24 Warranty 25 TABLE OF CONTENTS FOR SERVICE Call 1 866 941 LEHR 5347 2 5 HP MODEL LP 2 5S READ AND FOLLOW ALL SAFETY RULES AND OPERATING INSTRUCTIONS CAUTION BEFORE OPERATING THIS PRO...

Page 2: ...se with damaged or missing seals Discard cylinder if dirt or rust particles are in valve area 2 Turn engine off 3 Attach cylinder outdoors away from pilot lights flames sparks or other ignition sources These sources can ignite leaking gas 4 Hand tighten only Never use tools to tighten Overtightening can damage seals 5 Check for leaks Put soapy water on connections Look for bubbles Listen for hiss ...

Page 3: ...tact 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 ...

Page 4: ...ases 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 y...

Page 5: ...e included as standard equipment on all models 1 2 3 4 5 6 11 8 7 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 ...

Page 6: ...t 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 FRICTION ADJUSTER A friction device provides adjustable resistance to movement of the throttle grip or the re...

Page 7: ...tioning Avoid accidentally pulling the lanyard during normal operation Loss of engine power means the loss of 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 with the stop switch lock removed ENGINE STOP BUTTON To stop the engine push and hold the engine stop button or...

Page 8: ...hile 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 CARRYING HAND...

Page 9: ...iciency the water resistance drag of the boat and outboard motor must be made as little as possible The mounting height of the outboard motor greatly affects the water resistance If the mounting height is too high cavitation tends to occur thus reducing the propulsion and if the propeller tips cut the air the engine speed will rise abnormally and cause the engine to over heat If the mounting heigh...

Page 10: ...ass lens but not so high as to touch the inside of the glass Recommended engine oil 4 stroke motor oil with a combination of the following SAE and API oil classifications Engine oil type SAE 10W 30 Engine oil grade API SE S F SG SH SJ SL Engine oil quantity 0 37USqt 0 35L WARNING ALL ENGINES ARE SHIPPED FROM THE FACTORY WITHOUT ENGINE OIL ADD OIL BEFORE STARTING ENGINE FUEL Check to be sure you ha...

Page 11: ...e canister clamp pull the canister out and remove the propane connector by turning it counterclockwise 3 Remove the empty canister 4 Dispose of empty propane canisters in accordance to Federal State and Local regulations CONNECTING REMOTE PROPANE TANK 1 Make sure the engine is off and the propane tank is closed 2 Connect the remote hose to the remote propane tank Use only a high pressure propane h...

Page 12: ...tle a small amount between 1 8 1 4 throttle and try again Also if the engine is warm and fails to start open the throttle a small amount and try to start the engine again If the weather is below 45 degrees F open the throttle to 1 4 1 2 to start cold WARMING UP ENGINE 1 Warm up the engine by operating at 1 2 throttle or less for the first 4 minutes Failure to do so will cause the engine to stall i...

Page 13: ...st the boat with the trim set to different angles to find the position that works best for your boat and operating conditions NOTE The outboard motor trim angle can be changed approximately 4 degrees by shifting the trim bolt one hole When the boat is on plane a bow up attitude results in less drag greater stability and efficiency This is generally when the keel line of the boat is up about 3 to 5...

Page 14: ...g friction adjuster by turning it clockwise to prevent the motor from turning freely 3 Hold the carrying handle and tilt the engine up fully until the tilt support lever automatically locks PROCEDURE FOR TILTING DOWN 1 Slightly tilt the outboard motor up 2 Slowly tilt the outboard motor down while pulling the tilt support lever up 3 Loosen the steering friction adjuster by turning it counterclockw...

Page 15: ...d motor accidentally falls Do not use the tilt support lever when trailering the boat The outboard motor could shake loose from the tilt support and fall If the motor can not be trailered in the normal running position use an additional support device to secure it in the tilt position The outboard motor should be trailered and stored in the normal running position If there is insufficient road cle...

Page 16: ... after each use before being stored Do not run the engine without supplying it with cooling water Either the engine water pump will be damaged or the engine will be damaged from overheating Before starting the engine be sure to supply water to the cooling water passages 1 Wash the outboard motor body using fresh water 2 Remove the engine top cover 3 Install the outboard motor on a test tank or sub...

Page 17: ...er CHECKING PAINTED SURFACE OF MOTOR 1 Check the motor for scratches nicks or flaking paint Areas with damaged paint are more likely to corrode If necessary clean and paint the areas NOTE Be sure to turn off the engine when you perform maintenance unless otherwise specified If you or the owner are not familiar with machine servicing this work should be done by your LEHR dealer or other qualified m...

Page 18: ... carbon and other deposits are excessive you should replace the spark plug with another of the correct type Before fitting 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 NOT...

Page 19: ... the idle speed screw at the proper angle Remove the rubber plug to use this hole CHANGING ENGINE OIL WARNING Avoid draining the engine oil immediately after stopping the engine The oil is hot and should be handled with care to avoid burns Be sure the outboard motor is securely fastened to the transom or a stable stand Do not overfill the oil and be sure the outboard motor is upright not tilted wh...

Page 20: ...t cover cylinder head and cylinder WATER LEAKAGE Start the engine and check that no water leaks from the joints between the exhaust cover cylinder head cylinder thermostat housing and thermostat hose CHECKING PROPELLER WARNING You could be seriously injured if the engine accidentally starts when you are near the propeller Before inspecting removing or installing the propeller remove the spark plug...

Page 21: ...ent the propeller from turning 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 The performance of your outboard motor will be affected if you choose a different propeller as an incorr...

Page 22: ...he used oil after it has been drained If the oil is milky water is getting into the gear case which can cause gear and bearing damage Consult your LEHR dealer for repair of the lower unit seals 5 With the outboard motor in a vertical position and using a flexible or pressurized filling device inject the gear oil into the gear oil drain screw hole 6 When the oil begins to flow out of the oil level ...

Page 23: ...Q Possible faulty internal engine parts A Have serviced by a LEHR dealer ENGINE IDLES IRREGULARLY OR STALLS Q Is propane tank empty A Check tank fluid level by shaking it Q Is spark plug fouled or incorrect type or gap 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 correct...

Page 24: ...er damage is found or not return to the nearest harbor slowly and carefully 4 Have the outboard motor inspected before operating it again STARTER WILL NOT OPERATE If the start mechanism does not operate the engine cannot be cranked with the starter the engine can be started with an emergency starter rope WARNING Use this procedure only in an emergency and only to return to the port for repairs Mak...

Page 25: ...peat 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 1 Wash away mud salt seaweed and debris with fresh water 2 Remove the spark plug then face the spark plug hole ...

Page 26: ...O 2 08 GEAR SHIFT F N TRANSOM HEIGHT 15 381 mm MAX OPERATING R P M 3000 3500 R P M IDLE SPEED 2000 R P M IGNITION TYPE ELECTRONIC IGNITION SWITCH TETHER VALVE CLEARANCE IN and EX COLD SPARK PLUG GAP 0 020 0 024 INCH 0 5 0 6 mm LUBRICATION CRANKCASE OIL CAPACITY 0 37 US qt 0 35L FUEL STARTER PULL CHORD AUTO REWIND 003 005 in 0 08 0 12mm PROPANE 4 STROKE 10W 30 SPARK PLUG TORQUE SPEC 18 4 ft lb 25 0...

Page 27: ...s at any time without notice or obligation to any purchaser HOW TO OBTAIN SERVICE Warranty service is available with proof of purchase through your local authorized service dealer To locate the dealer in your area visit our website at www golehr com or call 1 866 941 LEHR or write to 8922 Ellis Ave LA CA 90034 CALIFORNIA EMISSIONS EPA CONTROL WARRANTY STATEMENT YOUR WARRANTY RIGHTS AND OBLIGATIONS...

Page 28: ...o Subsection 4 below Any such part repaired or replaced under the warranty must be warranted for the remaining warranty period Any warranted part that is scheduled only for regular inspection in the written instruc tions required by Subsection d must be warranted for the warranty period defined in Subsection b 2 A statement in such written instructions to the effect of repair or replace as necessa...

Page 30: ...0 lower emissions than One Star Low Emission engines Three Stars Ultra Low Emission The three star label identifies engines that meet the Air Resources Board s Personal Watercraft and Outboard marine engine 2008 exhaust emission standards or the Sterndrive and Inboard marine engine 2003 exhaust emission standards Engines meeting these standards have 65 lower emissions than One Star Low Emission en...

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