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Mechanics Corner Looking for answers to mechanical questions? Just can't get it to run right? Got a tip for increasing HP? This is your forum!

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Old 05-12-2008, 10:08 PM   #1 (permalink)
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hardyrides19's Avatar
 
Join Date: Jan 2008
Bike: Yamaha WR450f/Ninja ZX12r
Location: St.Catharines,Ontario,Canada
Posts: 15
Default Backfire blues

Hey just wondering,,,I have a wr450fr 2003 and recently installed a standard FmF pipe and its backfiring more than usual.The carb has been adjusted perfectly,starts in 2 kicks.Any ideas?