rejetting hep

[kuhnie80]

i just installed an 11 to 1 stock bore piston. i bought it with a 407 kit already installed but the installee basically ruined the jug so i got a new jug and went with the new piston. my question is what would be recommended for rejetting. it has a fmf full exhaust, port n polished and an A/M airfilter. i tried starting it and it fires up but will not stay running for more than a second or 2... i turned the choke up and that seemed to help it the farther the choke went up but still will not stay running. so i shut it down as to not damage anything. any suggestions would be greatly appreciated... thanks

[3400ben]

This should help http://www.atvriders.com/articles/jetting.html

[3400ben]

What carb?

[kuhnie80]

pretty sure its stock its got keihn cast in it... i bought the bike used so im not 100% on that also i have a stage 2 cam i forgot to mention

[slightlybent47]

Originally posted by 3400ben
This should help http://www.atvriders.com/articles/jetting.html


Hey thanks for the link, that is a great explanation of a carb.
Im putting that one in my fav's so i can share with others.

thanks again

[kuhnie80]

also it has a 160 main and a 38 slow jets the pilot didn't have any markings on it... i took it apart and cleaned it out.