Small Engine Troubleshooting Problems? Ask a Mechanic Now.
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Its usually due to the engine speed being too high. Does it sound like the engine is running faster than normal or anything? Has anyone worked on it recently for any reason?
If youre sure the engine speed hasnt changed then its gonna be a bad voltage regulator. You would need to check the frequency of the power to be sure its at or very close to 60 hertz to verify it isnt engine speed related. If the frequency is right then its most likely a bad voltage regulator.
Sorry. Just pulled up the diagram. You are right. Theres no regulator on it. Have you checked the frequency?
Either one. They should both be right at 60 hertz