BansheeMxer#45 Posted March 7, 2007 Report Posted March 7, 2007 last year i ran kn filter with no lid and fmf fatties. i looked at my main jet and it is a 330 i dont know what the needle is set at. this year i and porting and boring it out .20 over what jet sizes do u guys think i should run. also where can i buy jets Quote
BansheeMxer#45 Posted March 7, 2007 Author Report Posted March 7, 2007 i ride mx and it is a mx port if this madders Quote
Banchetta Posted March 7, 2007 Report Posted March 7, 2007 I'd start out w/ a 350 and do a plug test. Quote
dajogejr Posted March 7, 2007 Report Posted March 7, 2007 I'd start out w/ a 350 and do a plug test. He's still got an air box with no lid and porting. I'd say 320 to start... If he had K&N Pods with NO airbox, 350 is a good starting point with porting... Actually...I would ask whoever ported your cylinders what jetting to start at...they should know how/where their porting likes fuel. Quote
Banchetta Posted March 8, 2007 Report Posted March 8, 2007 He's still got an air box with no lid and porting. I'd say 320 to start...If he had K&N Pods with NO airbox, 350 is a good starting point with porting... Actually...I would ask whoever ported your cylinders what jetting to start at...they should know how/where their porting likes fuel. The single K&N has no restriction at all....I dynoed a shee w/ a single K&N and w/o the complete air box and seen absolutely no difference...Put the cover on the air box though and lost 4hp....He had 320 mains before the porting job, so he will have to be larger than that. Quote
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