quick jettin question

[Richmoz]

i finally got the beast back together and now its time for the tune. i have fmf gold series pipe and fmf silencer my motor is bored .60 over. i know im running lean so whats would be a good jet to start with before plug chopping? im lucky enough to have action Yamaha 5 minutes away from my house so i plan on getting some after work tomorrow. i also live at nj at a low elevation pretty much sea level

 

[95blasta]

290-300 and chop down

 

[Richmoz]

290-300 and chop down

sweet, i was thinking about starting with something like that but figured i would get some input on it thanks man. what u think about air box lid should i keep it or pop it off?

 

[95blasta]

Depends were you ride.wet or nasty places u might wanna keep it or at least get an outerwears.but remember removing tthe lid flows alot more air and youll need to rejet for it if you jet for running a lid

 

[Blaaster]

#270 with only the pipe, pre mix add one size, air box lid off add another 2 sizes.

 

[95blasta]

Thanx for chimin in forgot the exact size jumps for box lid

 

[Blaaster]

By the way , take no ones word for Gospel, jetting must be confirmed by a plug chop.