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Old 10-22-2014, 09:55 AM   #13
geezer#99
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Join Date: Aug 2009
Location: Bowser
Posts: 13,522
Re: Starting problem after highway driving

It's not heat soak! It's cranking over but not firing.
It's vapor lock!
Even though you say your locking cap is loose, you're still building up a lot of suction while running. The suction will seal your cap to the pipe and stay there until you open it.
Get rid of the locking cap and put a vented one on it.
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