Okay... my partner has a stock raptor 350... I'm looking to hook him up and open this machine up a little.

The mods are as planned.

Remove the air box lid
Install a new K&N or Uni clamp on air filter
Install a Stage two Cam or Hot cam
Remove the spark arrestor
Run a 14t from sprocket
and re-jet.

My question is... what size jetting should i use. We ride in SoCal and Glamis. I know its hard to pin point it from the forum... but what is the ball park size... Is there a main and a pilot on this thing... Thanks in advance

 

I'd try moving the main up 2 or 3 sizes, one or 2 sizes on the pilot jet, and raise the needle one notch. That would be my best guess on it.

 

Thank you very much... i appreciate your help..

however.. .i don't know what the stock sizes are... can you help me out there?

 

if you buy a jet kit for it, it will tell you what parts to use, and it will come with them, then do a google search to find your elevation to figure out which jets to use.

 

I'm not sure of the stock jet sizes. You could go to an oem parts finder like the one at ronnies.com, go to the carburetor parts for the raptor 350, and the original pilot jet and main jet sizes will be listed in there.