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Engine idle fluctuates (rpms go up and down) and shuts off after running for about 5-10 minutes

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I would suspect a fuel problem. Replace the fuel filter if applicable. I would remove the fuel tank and clean it out throughly. Look on the bottom of the carburetor and you will see a bowl that houses the float. Remove the drain plug and drain the bowl. If you see any debris come out, then replace the drain plug and remove the bowl marking the orientation of how it was installed with a felt pen. Clean it out throughly and reinstall it taking care not to damage the gasket. It you do, then go buy a new gasket. Purchase a can of Seafoam Motor Treatment at most auto & marine parts stores & WalMart. This is the best Fuel System Cleaner and fuel stabilizer you can buy IMO. Follow the directions on the can and pour the correct amount of Seafoam in the fuel tank, and then fill it up with fresh fuel. Start the engine and you should notice it start to run better in a few minutes. If it dies let it set and start it again. If this does not help, then you may need to remove the carburetor and give it a through cleaning.

Posted on Dec 11, 2009

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Posted on Jan 02, 2017

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