JD Jetting

[YFZ_Racer42]

I bought a jet kit form them for my 450SX and I did exactly what they say but I have some bug in the powerband so, if anyone has one their jet kit and has the same mod than me (I removed the small intake tube on the airbox and I removed the baffle on the exhaust) Can you give me your settings please?

Thanks

[yamaharider814]

go with a 180 main 45 pilot and the blue needle on the third clip use the thicker o ring and the accelerator pump spacer and you should be good to go