Is this jetting necessary?

1 reply to this topic

Posted March 27, 2001 - 02:19 AM


I've got a WR426 that I run on the road only as a supermoto. I've been using it with a DR K pipe on it, and a gearing of 15/40. It's throttle response is awesome as is it's overall power delivery.

Are people re-jetting their bikes because some pipes necessitate the need to do so, or are you just firkling with the bikes cause you enjoy it?


Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • Bill

Posted March 27, 2001 - 03:43 AM


Pull your plug and see if runs lean, does it backfire on decelleration? You can possibly find more power, if your willing to tweak your jetting.


97 KDX220, 86 TTR225, 99 WR400f, WR timing, throttle stop trimmed, air box lid removed, White Bros head pipe, silencer and air filter. De-octopussed. Works frame guards and Thumper Rad Guards, Scotts steering damper. Odometer and headlight removed. Moose hand and mud guards. YZ stock tank, IMS seat and number plate. Renthal Jimmy Button "highs" and Renthal Soft half waffle grips. AMA, SETRA, Happy Ramblers MXC.


Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.