Thread: 2014 Gas Gas 300 - Jetting
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  #30  
Old 08-25-2014, 02:31 AM
wa_ndro wa_ndro is offline
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Join Date: Feb 2013
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i was just looking at powervalves myself and found this link on the site regarding shimming the spring...

http://forums.everything2stroke.com/...t-valve-system
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