Power Unit - Yamaha F80B Service Manual

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NOTE:
• Check that all electrical connections are tight and free from corrosion, and that the battery is fully
charged to 12 V.
• To diagnose a mechanical malfunction, use the troubleshooting charts pertaining to the trouble
located in this chapter. Also, when checking and maintaining the outboard motor, see Chapters 3–
8 for safe maintenance procedures.
• To diagnose a malfunctioning sensor or switch, use the diagnostic flash indicator to determine the
cause.

Power unit

Symptom: Engine does not crank.
• Check the starting system.
• Check the power unit.
Check that the gearshift is in the
neutral position.
Is the gearshift in
neutral?
Yes
Check the engine start switch
for continuity.
Is there
continuity?
Yes
Check the engine stop lanyard
switch for continuity (with lock
plate).
Is there
continuity?
Yes
Check the fuse for continuity.
Continued on next page.
9-5
Troubleshooting
No
Set it to the neutral position.
No
Replace the engine start switch.
No
Replace the engine stop lan-
yard switch.
9
6D93G11