Jump to content
Sign in to follow this  

Need help with a 2007 crf 150 r jetting

Recommended Posts

How's it goin I purchased a 07 crf150r...live in california elevation around 2500 to 3000 and need jetting tips...bike came with the nj clip on the 5th setting and a 42 pilot and a 140 main....also mix screw was like more than 3 turns out...bike is popping at about quarter throttle out of the turns at top end runs fine ....any suggestions please need the help my son is getn aggrivated lol

Share this post


Link to post
Share on other sites

Use 2008 and up needle, at that altitude you should need a smaller main and a 40 or 42 pilot. My 08 ran great with a 42 pilot and a 55 leak jet, all other jetting was stock. I rode below 800'altitude.

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

Reply with:

Sign in to follow this  

×