Jump to content
Sign in to follow this  

Jetting a 04 540EXC

Recommended Posts

James,

I just installed a 540 kit on my 04 KTM 450EXC, and my bike

have a weak point just after idle. On tight trails i need do clutch on rocks and roots.

JD red needle : fourth clip

main jet: 172

Pilot: 45

FS: 1,25

Powernow

elevation: 2500 to 3500 Feets

Temp: 25 to 30 celsius

Humid: 50% to 70%

There is a better set up for these conditions?

Thank you

Share this post


Link to post
Share on other sites

The kit instructions are based on using the stock pilot jet in most cases (#42 pilot jet in this case). The clip position and main jet look good. If you continue to have difficulty, try clip position #5 on the needle.

Make only 1 change at a time.

Thanks,

James

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  

×