[450dave]

hey all i got an big gun pipe on my 450 and a k n n filter but i havent rejeted it but im gettin a little back fireing and the odd time it will stall out if i slow down to an idle. should i rejet it or what ? i ride in all temperatures from a hot summer to 15 below .what do you guys recomend i do ??

 

[dirty4man]

yes you need to rejet, your bike is running lean. did the pipe come with any jets? if not you need pick up a couple differet sizes. Without a snorkel I would try using a oem 132.5 jet. You should be able to pick up at any atv shop for around $5 or so. Most dealers dont carry them.

 

[450dave]

jets

thanks im goin to try a 132 cuz i cant find a 132.5 and a 50 pilot jet in it and hope it works better!