08 yz 450f jetting help


1 reply to this topic
  • iowamarinedad

Posted March 15, 2008 - 05:25 PM

#1

anyone, I could use help on jetting my new 08 yz 450f.

Elevation 650'
exhaust-two brothers m7
zip-ty carb mod completed

right now jetting is stock-fuel screw 2 3\8

Kind of hard to start and shooting flames out exhaust and some popping

any help would be greatly appreciated

thanks in advance

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  • TCCRA RACER

Posted March 15, 2008 - 06:48 PM

#2

48 PILOT AND 168 MAIN IS perfect!! We have 4 08's one of them has a 50 and 170 but the others are the same..:confused: No more popping and they start first kick anytime day or night.. go 1 or 2 turns out on the fuel screw!!!





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