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
Dirt Bike Discussions By Brand
Canadian Daves JustKDX
Power Valve causing engine rattle?
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="Patrick, post: 664144, member: 28813"] I solved the engine rattle in my '02 220. Go back to the 1st page on this forum and choose the top thread "Important Poll ...." there is a discussion about this on the link shown at the bottom of the second post. I have heard two distinct rattles coming from my bike - one in the cylinder and one in the clutch. I've heard the same noises in KX's and in KTM's. If you think a KDX is loud, the KTM's are twice as loud straight off the showroom floor (clutch noise). The top end rattle in my bike is caused by carbon build-up on the main "flapper" valve. I can hear it from low to mid rpm. When I cleaned this part, the noise stopped. When I corrected the jetting on the bike and swithched to Mobil 1 synthetic pre-mix (40:1), the noise didn't return until after 400 miles but it wasn't as bad. When the bike was brand new (jetted rich) I ran Yamalube with the stock jetting. Yamalube is a great oil but with the stock jetting my main valve was caked with carbon, and the noise was terrible. I can only speak on my experiences with this bike. The noise you're hearing could be for another reason. Clean the valves really good, and take it from there. The clutch noise is easy to distinguish. At idle, pull in the clutch lever. If the noise changes tone, you'll know it's a typical KDX. Try putting in a full quart of 10W-30. [/QUOTE]
Verification
Which ocean is California closest to?
Post reply
Forums
Dirt Bike Discussions By Brand
Canadian Daves JustKDX
Power Valve causing engine rattle?
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