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Troubleshooting ?


ANYFISH2

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I have a 04 115 Yamaha 4 stroke. I had batteries(2) run dead on opener. After jump starting engine to get back to access we checked fuses and any wiring for problems and found none. We did however find that after starting with a fresh battery that when we removed the cables that the motor would die immediatly. This telling us that the charging system of the motor appears to be failing. Am i correct with this thought?

Also does anyone know if the Alternator is bulit into the starter? Or is it in a different location?

Any help would be greatly appreciated, thanks.

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Welcome to FM

The alternator is under the flywheel. Disconnecting the battery while running is never a good idea. If you have access to a volt meter try hooking that up to the battery and watch the voltage as you increase rpm's. Since you checked for the obvious, you could have a bad stator or rectifier.

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Thanks for the welcome, I was here before as ANYFISH but apparently was unable to get a new password.

Wouldn't usually take cables off. Just tried to transfer from a good battery to the boats batteries to try to charge but that didn't happen.

How do I check the stator/rectifier? location of both would help also.

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