Can someone give me an approximate jetting spec?

[kc 300EX]

ok, I need an approximate jetting spec, just to get an idea

450R
HMF Full system
Stock intake, including lid and airfilter
Location-Rausch Creek

Just throw me out a starting point!
Thanks a lot

[rap169]

sure try a 145-155. I recommend air box lid removal and the 180 main. IT really wakes it up.

[250rtone]

I removed the lid on mine and it sounds like it's going to suck you in there when your riding it, verry noisy.

[RedRaider]

i have an HMF slip-on and i just put a 155 in and removed the snorkel with the lid on and it ran great.