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Old 08-14-2010, 06:30 PM   #62
Easy Rider
Senior Member
 
Join Date: May 2007
Location: Champaign, Illinois
Posts: 4,561
Re: Needle shim modification

Quote:
Originally Posted by emory70
how else are you gonna REALLY tune the engine?
You "mess" with the needle and main jets until it runs better............or take the recommendation of someone else who has already done that.

We may have had one nut....mmm..err..rider here who did some dyno runs but I doubt it.
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