Jump to content
Sign in to follow this  

WR to YZ exaust cam timing - Jetting changes?

Recommended Posts

This weekend I'm planning to switch my exaust cam from wr to yz timing (2002 wr250f) I have installed the JD jetting kit as per excellent instructions. Riding at sea level to ~2000 feet and cold, the current settings are:

BLUE needle 5th clip

#185 main

Fuel screw 2 turns out.

the rest is stock

Its running great, with only a tiny off idle bog. BK mod and AP pump timing to follow.

I'm just wondering if anyone has had to re-jet after making this change?

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