[Jetting with Cam Mod] - ATV Riders Forums - Honda, Yamaha, Suzuki, Kawasaki, Polaris, CanAm, Arctic Cat, Kymco ATVs

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Jetting with Cam Mod
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Posted by: Fred55

Ive read that you will need to rejet for the cam mod, how much would I go up on my jetting if I were to do the cam mod? I have a slip on GYTR, GYTR Air filter, 165M, 42P and NVCQ on 4th clip, thanks!

Posted by: jshtex

We have an almost identical setup and all I did after the cam mod was richen up the mixture screw a little. Seems to run great and the plug looks good. But I do plan some dyno time in the near future just to be safe.

Posted by: sampleez

most people go up one size on the pilot jet. my jetting is in my sig. and my bike runs great with the cam mod.

Posted by: 450ss

my buddy has the cam mod and full system he is running a 178 or 180 main and a 42 or 46 pilot you cant tell any difference with that mod..........just get some hot cams and no one will keep up.......my buddies is fast but he is always messing with that damn jetting everytime I beat him he says its his jetting I say nope its your Yamahahahahahahahaha

Posted by: EXtremeEXer50

dude bull S*** that mod doesnt make a difference...haha obviously u never rode a yfz?

Posted by: 450ss

there was a dyno chart on one of these forums and it was a stock tyz with a cam mod dynoed against a yfz with a hot cam and the mod made the most difference in response and overall trq Hp gain ill try to find it

Posted by: sampleez

actually the hotcams got smoked in a recent cam shootout. web cams were the best

http://www.yfztech.com/forum/index.php?showtopic=1729