Question about Coleman Powermate Premium Plus 6250W Portable Generator

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Engine won't maintain constant rpm

My generator is a Coleman PowerMate Pro 6750 with a Yamaha Model MZ-360, 357cc engine.

It starts easily. After about 30 seconds the engine almost quits then revs up again then almost quits then revs up. This happens a couple dozen times - perhaps until it's sufficiently warm - then runs fine.

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Hello There

Try cleaning or replacing the spark olug.

Hope this helps.

Many Thanks

Posted on May 22, 2009

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Posted on Jan 02, 2017

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