jetting problem

[blasterrider119]

what size main jet should i be running with my mods fmf fatty power core 2 and its bored .050 over

 

[bundyho1]

If the airbox lid is removed,start at a 310 and work your way down.

 

[blasterrider119]

no its not i dont want to let water in so i left it but i want one in the area cause i dont want any extras laying around to loose lol

 

[coreyownz]

im runing a 270 so im guessing for you a 270and work down to a 250 or so

 

[Jay]

I got a 290 main an it runs just right,but it is different on every bike so start at 310 do a plug chop see what it says,you want light brown color.