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
Suzuki MX & Off-Road Dirt Bikes
04 RM125 tuning info
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="EricGorr, post: 705390, member: 19611"] Look at that nasty torque trough at 8,800 rpm! Me thinks that thing needs a softer governor control spring. Mark, why don't you order a powervalve governor control for me to fiddle with. We can do one of two things, reduce the spring preload pressure or machine a new rampcup with a less steep angle. Basically I think that the exhaust valve isn't opening soon enough so there isn't enough exhaust port time area or blowdown. In previous model years I added two sub exhaust ports like the 2004 model has stock. The way I controlled the opening of those ports was simple, I drilled the exit port into the main exhaust at such an angle so they would be partially blocked by the two exhaust valves, but not completely blocked, there was a certain area of bleed to reduce this type of torque trough. Electronic valve controls eliminate this type of problem completely but can't be tuned or adjusted mechanically like centrifugal powervalve governors. [/QUOTE]
Verification
Which ocean is California closest to?
Post reply
Forums
Dirt Bike Discussions By Brand
Suzuki MX & Off-Road Dirt Bikes
04 RM125 tuning info
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