Home
Basic Dirt Bike How-To's - Video
Dirt Bike How-To's - Video
Living The Moto Life - Video
Bike Tests | Shoot-Outs - Video
Forums
What's new
Latest activity
Log-In
Join
What's new
Menu
Log-In
Join
Navigation
Install the app
Install
More options
Close Menu
Forums
MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
My bottom end STINKS!
Reply to thread
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Message
[QUOTE="CC_RIDER, post: 142208, member: 23240"] That came out wrong.... I'm having a tuning problem that I bet someone here can help me with. I recently changed the jetting on my '97 KTM 250SX. It was set up with the stock configuration, 175 main, 85C needle (clip in third notch) and 75 pilot. I had been running rich, not fouling plugs, but just a lack of throttle response in the midrange. I first changed the main jet and needle one step. (170M, 85D,3rd notch). This setup got my mid and top in good shape, but it was still rich on the idle and just opening throttle, so I changed the pilot to a 72. I'm still a little rich and the engine bogs and or dies when I dethrottle / brake for a turn. I can gas and clutch it to keep it running, however it is very sluggish until the rpm gets up to about the normal idle speed. It will idle on the stand, which I like, my problem occurs just when braking for a turn after a hard run. I think I'm still too rich on the bottom, judging by the plug. I thought changing to the leaner needle would be enough, do I need to lower it also? I'm new to jetting so if you see an error in my procedure, please speak up. [/QUOTE]
Verification
Which ocean is California closest to?
Post reply
Forums
MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
My bottom end STINKS!
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Accept
Learn more…
Top
Bottom