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Old 01-08-2012, 04:58 PM
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Greg58 Greg58 is offline
Motorized Bicycle Elite Member
Join Date: May 2011
Location: Newnan,Georgia U.S.A.
Posts: 2,620
Default Re: Spark Plug reach-why not use longer?

I don't think the piston will hit the plug, I would worry about the carbon build up on the 1/4" of threads that are in the combustion chamber. It may over time build to the point of damaging the head when removed.
Your results may not be the same,Greg
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