Ob 072 operators manual draft 1 24, Troubleshooting, Lehr – LEHR 2.5 HP 4-STROKE User Manual

Page 24: Engine vibrates excessively, Impact damage, Starter will not operate

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LEHR

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ALL RIGHTS RESERVED 2012-2013

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TROUBLESHOOTING

Q: Is trim angle correct?

A: Adjust trim angle to achieve most efficient operation.

Q: Is motor mounted at incorrect height on transom?

A: Have motor adjusted to proper transom height.

Q: Is boat bottom fouled with marine growth?

A: Clean bottom of boat.

Q: Are weeds or other foreign matter Tangled on gear housing?

A: Remover foreign matter and clean power unit.

Q: Is spark plug gap incorrect?

A: Inspect and adjust as specified.

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.

Q: Is propeller shaft damaged?

A: Have serviced by a LEHR dealer.

IMPACT DAMAGE

WARNING: The outboard motor can be seriously damaged by a collision while operating or traveling.

Damage may make the outboard motor unsafe to operate.

If the outboard motor hits an object in the water, follow the procedure below.

1. Stop the engine immediately.

2. Inspect the control system and all components for damage. Also inspect boat for damage.

3. Whether 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.

• Make sure the gear shift lever is in neutral. Otherwise the boat could unexpectedly start to move, which

could result in an accident.

• Attach the engine stop switch lanyard to a secure place on your clothing, or your arm or leg while operating.

• Do not attach the lanyard to clothing that could tear loose. Do not route the cord where it could become.

entangled, preventing it from functioning.

• 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.

• Be sure no one is standing behind you when pulling the starter rope. It could whip behind you and hurt

someone.

• An exposed, rotating flywheel is very dangerous. Keep loose clothing and other objects away when

starting the engine. Do not touch the flywheel or other moving or parts when the engine is running.

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