how do i re-jet unless i dont have to? the only mod i have is a fmf jet kit. i only have the needles in there, but i still have to put the mixture screws in.

 

I'd say do a plug check. Full throttle for 1/8 mile, hit kill switch while keeping Throttle open until you coast to stop. Pull plugs, Bottom thread-ring on plugs should be a light tan. If it's black youre rich, grayish youre lean. Happy medium somewhere between tan and light tan. Worked for me. Also do search for jetting, several articles basically saying same thing. Keep in mind your bike has to be tuned for your elevation and the mods you got, which means trial and error on your needle settings/spacers/clip-settings, air-screw settings and main jet sizes. If you got a recommended needle setting and jet size from FMF, start there. Do a plug check & work, you way up or down on main jets and fine tune with needle setting.:cool

 

Do you have to replace or clean the plugs after each run? If I am supposed to clean them then how do I do that?
___
VTwinMan

 

Small wirebrush & brake cleaner worked for me. Each jetting change & high speed runs will change the color of your plug[img]i/expressions/face-icon-small-smile.gif[/img]