Power Unit - Yamaha F50F Service Manual

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SHTG
NOTE:
• Before troubleshooting the outboard motor, check the mounting and rigging of the outboard motor.
Also, make sure that the specified fuel has been used and that the battery is fully charged.
• To diagnose a mechanical malfunction, use the troubleshooting charts for each trouble located in
this chapter. Also, when checking and maintaining the outboard motor, see Chapters 3–8 for safe
maintenance procedures.
• To diagnose a sensor or switch malfunction, use the diagnostic flash indicator to determine the
cause.

Power unit

Symptom 1: Engine does not start or starting the engine is difficult.
Starting system
Check that the gear shift is in
the neutral position.
Is the gear shift
in neutral?
Yes
Check the starter motor opera-
tion.
Good operating
condition?
No
Check the battery lead connec-
tions and the starter motor posi-
tive terminal for damage and
check that the ground lead bolt
is not loose or that it has not
come off. Check for blown
fuses.
Continued on next page.
9-7
Troubleshooting
No
Set it to the neutral position.
Yes
Check the ignition system or the
fuel system.
9
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