HEADS UP!!!

Site upgrade in progress... Core site functions are working, but some non-critical features/functions will be temporarily unavailable while we work to restore them over the next couple of weeks.

Please post any bugs you encounter, but before you do, check to see if it's already listed.

Thanks for your patience while we work to improve the community.

Sign in to follow this  
Followers 0
cjxrider125

09 450 jetting

6 posts in this topic

im having a lot of popping on decel and i feel a hesitation when accelerating on my bike. everything is stock. have not touched a thing. i was wondering what jetting changed you southern california guys have made to get the bike running better?

i ride the motocross tracks in so. cal. (comp edge, racetown, pala) with the occasional trip to glamis

Share this post


Link to post
Share on other sites

I have read that they come stock a little lean...try adjusting your fuel screw and get a larger pilot jet if needed.

Share this post


Link to post
Share on other sites

If your bike is popping don't you wanna richen the main not the pilot? or am I meant to always be wrong on here? I will learn one day!

Share this post


Link to post
Share on other sites

The main has no effect on decel backfire, as the throttle is closed during decel. The pilot is where the fuel would come from.

A certain amount of popping is normal, and indicates a correctly jetted pilot circuit. Excessive popping can mean either an air leak into the exhaust system (check that first) or lean idle jetting.

Share this post


Link to post
Share on other sites
Check out the pilot circuit sticky at the top of the jetting forum.

perfect :banghead:, thanks i didnt see that

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0