can anyone tell me what size main jet the 2012 bikes come with?
barone, so what size jets are you up to so far?


Ive always noticed studdering at my very top end and suspected that the main jet could be sized up, but when i tried slightly closing up the choke, it immediately got worse, indicating perhaps it could use more air...

plug reads fine so I think for the most part its a good mix, just not at those rare long straight or downhill top end moments...

so it would be nice to know what size we are starting with here