After my engine gets warm anytime I turn off key the engine runs on for about 10-15 seconds and then shuts down. Why? Could it be spark plug heat?
John F.
What's your initial timing set at? You could bump it up some, which will increase the idle speed. You can then close down the carb throttle plates some. Make sure your secondary throttle plates are open some as well, this will allow the primaries to be closed some.
Do you have an electric fan? I have seen fans feed back enough voltage when they are turned off and are winding down, and the engine will run on till the fan stops spinning.
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