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windseeker1

FMF exaust adjust

7 posts in this topic

I got me a brand new FMF powercore IV exaust for my wr426f and i installed it on the bike about 3 weeks, but now i wonder if i need to adjust something in the bike like jetting or throttle, the bike seems to run fine!

Can i damage the bike if i let it stock in the adjustments? :applause:

Thanks

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i installed a factory 4 to my wr450 05 and needed to jet and lift the needle to the top clip. it runs like a dream now! i recently installed a FMF quiet insert and it is great- More power and sounds great too :applause:

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