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Old 07-08-2012, 02:34 AM   #8
Ghostrider 310
Ex Esso kid
 
Join Date: Dec 2005
Location: NY
Posts: 1,605
Tighten all the spark plugs, it will be gone. 986 motors loosen plugs when they do the sound is like what you describe and goes away after three grand on the tach as you said.
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