i just put a pro circuit platinum pipe and 304 silencer on my girlfriends blaster. i want to run a k&n filter and open air box on it. my question is what jet do i need. im sure this is a wide spread topic so dont get mad cuz i didnt search. if this was only a 4 stroke i wouldnt have any problems. lol

 

We had run the same setup on my sons Blaster for awhile. I used a 250 in it then. It had a good plug color and it ran really well. Hope that helps some, but after jetting it, take time to put a new plug in it and check it for yourself.

 

yea hes probably right i was going to say somewherer around a 240. but i didnt wanna say anything till i saw what he said cuz im a little rusty with this stuff