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Dave in MN · 08-13-2012, 08:40 AM

Tyler,
Try opening the GAV a bit and place the advance just below where it knocks. With a fresh engine, there is a lot of heat build up with the wearing in of the rings. Excess engine heat will increase the problem. As stated above a richer fuel mixture may lessen the problem. I have the same issue and often run the engine below the max felt power setting to avoid the issue.

08-13-2012, 08:40 AM	#7
Dave in MN Senior Member Join Date: May 2010 Location: Jordan, MN Posts: 1,411	Re: Knocking Tyler, Try opening the GAV a bit and place the advance just below where it knocks. With a fresh engine, there is a lot of heat build up with the wearing in of the rings. Excess engine heat will increase the problem. As stated above a richer fuel mixture may lessen the problem. I have the same issue and often run the engine below the max felt power setting to avoid the issue.