I have a Craftsman GT5000 Tractor (917.250551) with a Kohler CV22 engine. The engine runs fine at times but sometimes it will lose power intermittently, sometimes it will slow for a few seconds sometimes a few minutes. Then it will start pulling normally. It feels like a cylinder is cutting out. I have checked the plugs and they are both a beautiful straw brown color no evidence of fouling. My guess is a lack fuel delivery. I assume fuel because if I was loosing spark I would expect to see a puff of smoke when the engine returned to full power. Low power or full power the exhaust is clear.
Please advise.
tomplum
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