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Old 08-16-2010 | 03:04 PM
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R-Duhb
 
Joined: Aug 2010
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From: Bolingbrook, IL
Default RE: New Four Stroke With Engine Knock
<span style="font-size: small">Thanks for the quick response!!!
Ok, I'll back off the needle valve a bit. I was concerned because O.S. FS91 doesn't do it. Ya gotta love the sound of a four-stroke.

In regards to the prop being thrown -The higher RPMs from a lean mixture will cause the prop nut to loosen? I'll be sure the tighten it as much as possible.

Thanks again!!</span>
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