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Yamaha F50F - Page 283

Yamaha F50F
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6C13G11
9-10
1
2
3
4
5
6
7
8
9
Yes
Repair or replace the spark plug
wire.
No
Good condition?
Check the ECM output peak
voltage.
Check the main and fuel pump
relay (main control) for continu-
ity.
No
Is there continuity?
Yes
Replace the main and fuel
pump relay.
Check the resistance of each
spark plug wire and check the
spark plug caps for salt buildup.
Replace the ignition coils.
Yes
No
Good condition?
Power unit

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