Troubleshooting - TOHATSU MD 40B2 Owner's Manual

96

TROUBLESHOOTING

ENOM00720-0
If you encounter problem with the engine, check the list below and locate the problem you
are experiencing. Then follow the suggested remedies.
Do not hesitate to contact your dealer, as professionals advice and assistance is the best
way to keep the engine in optimum condition.
11
Possible cause
Empty fuel tank
Incorrect connection of fuel system
Air enters fuel line
Deformed or damaged fuel pipe
Closed air vent on fuel tank cap
Fuel filter/fuel pump is clogged with dust.
Use of improper gasoline
Incomplete forced fuel feeling by primer bulb
Poor connection in compression system
Use of non-specified spark plugs
Dirt or carbon deposits on spark plugs
No sparking or poor sparking (Failure in component of Ignition
system)
Insufficient cooling water flow
Propeller cavitation
Incorrect propeller selection
Damaged or bent propeller
Unbalanced loading. Overload
Transom is too high/low.
Bottom of the boat is stained or damaged.
Insufficient throttle aperture.
Battery is charged insufficiently.
Battery is nearly dead, Poor connection of battery terminal, Low
level of electrolyte
Power trim & tilt switch is defective.
Wrong positioning of shift lever at N (neutral) position.
Main switch in defective.