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keeps popping!!!!
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Posted by: yfzcrazy

Ok i have a 2006 yfz450. I have instsalled the dyno jet kit for my elevation, FMF factory4 full exhaust, Velocity air filter with air box removed and a new fuel screw!! Ok now every time Iam letting off the throttle it starts popping and when ever you shut it down it pops too what do i need to do to correct this?

Posted by: LTD

If it pops when you shut it down thats extra gas left in the cylinder egniting so its getting to much gas.

Posted by: LTD

put the air box and stock filter on and get the main jet correct. Once its correct then remove the air box and switch filters and adjust the needle or fuel screw and posably pilot.

Posted by: yfzcrazy

ok i will give it a shot thanx