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
KTM MX & Off-Road Dirt Bikes
525 and maybe the 450's jetting problems
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="JC Soto, post: 448046, member: 35291"] Bonehead, I have the same carburetor nighmare that you had. When the carb was stock, I was unable to run my bike without the choke on. I had to open the fuel screw 4 turns to get some idling going, but that just causes the needle to fall off (it's wrong). So I changed the pilot jet (slow idle jets) from 42 through 55, and it would still take about 3 turns of the fuel screw to get peak idling RPM's. So I took it apart down to the mid section of the carb and blew out all the circuits with compressed air and carb cleanner. When I disassembled the carb I did noticed that the midsection gasket was not seated properly. After this work the carb responded better to the 55 pilot jet. It only took 1 1/2 turns of the fuel screw to get peak RPM's (it is still wrong). This is a compromise, but I am not satisfied because these bike should run with a 42 or 45 pilot. I did try other needles such as the EMN, and I am currently using an OBDVP on the #3 clip with a 170 main and stock air jets and exhaust. I live and ride at 8400' at about 80F and relatively dry air. I did look for any clogged up vents, but I can close one at a time and blow through each one. This tells me that they are open. At this point I have no idea on how to proceed, so any hints will be deeply appreciated. Thanks, JC [/QUOTE]
Verification
Which ocean is California closest to?
Post reply
Forums
Dirt Bike Discussions By Brand
KTM MX & Off-Road Dirt Bikes
525 and maybe the 450's jetting problems
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