i have a 2007 yfz4590 and just bought a YOSHIMURA TRC PRO SERIES TITANIUM COMPLETE pipe and im not sure what jet kit to get and i dont know what jet to use? can some1 help please

 

hey bman4123, if you call the yoshimura company they will be able to tell you what jets you need.

 

thanks. what jets do you have? and did you have to change needle?

 

Yes I had to change out the stock needle. I am running a 160 main jet. I purchaced the Quad Works ATV power Kit (stage 2). It came with the k&n air filter, pre filter, aluminum adapter plate, and Dyno Jet Kit. The power Kit ran me just under $200. $200 very well spent let me tell you.

 

I HAVE 07 BILL BALANCE EDITION RUNNING YOSI FULL SYSTEM. AND RUNNING MAIN JET 165 AND PILOT JET 45 NEEDLE AT 4TH CLIP. RUNS GREAT.