Thread: Knocking at start up?
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Old 11-29-2019, 04:54 AM   #10
old31
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Join Date: Jan 2016
Posts: 2,097
Default Re: Knocking at start up?
Quote:
Originally Posted by Mulletwagon View Post
Maybe a sticking valve. Might try Marvel Mystery Oil first.
I always use MMO at every fill up.
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