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Posted

ok, i need help with my jetting. i got a 421 cheetah cub with coolhead and 22 domes.and 38mm mic crarbs. going to run 91 octane. would like to know what my main,pilot,and cel should be at. :thanks:

oh and im at sea level.

Posted
ok, i need help with my jetting. i got a 421 cheetah cub with coolhead and 22 domes.and 38mm mic crarbs. going to run 91 octane. would like to know what my main,pilot,and cel should be at. :thanks:

oh and im at sea level.

 

the advice im going to give you is based on what my friend has on his 38mm mikuni flatsides for his 421 cub with a dune port.

 

340 mains

27.5 pilots , air screw 1 1/12 turns out

needle at 3rd or 4th clip.

 

that is a good starting point ( it should me), but other people should have more accurate advice than me

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