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Tiller looses power when it gets hot/wont start when hot

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My first hit is bad or weak spark.. as in a failing ignition coil or ignition module.. and/or spark plug.

It can be difficult to check spark quality on a hot engine.. The spark should be very blueish..if yellowish it's weak.

Check the plug and renew regap if needed.

If it still has compression when you try to start it.. it's probably one or both.

Always make sure you keep the cooling fins clean of debris..

Check the oil level.. obviously change if needed.. engines that are tuned properly.. have good spark air and fuel can still overheat if the oil is dirty and the shroud/fins are clogged preventing air to pass over the cooling fins.

Lastly would be fuel/air related. but it sounds like spark.
Best of luck

Posted on Mar 25, 2011

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