How do I time the AP on my WR400?

3 replies to this topic
  • pdrides

Posted August 10, 2008 - 06:24 AM


I'm getting a nasty off idle bog on my '99 WR400. I've set the fuel screw and before I go messing around w/my jets etc.. I wanted to check the timing on the ap. I cant find anything specific in my Clymer book and I dont have the original manual. Help would be appreciated.

  • byggd

Posted August 10, 2008 - 06:48 AM


The goal is to adjust the pump timing screw so that the stream from the a/p does not hit the slide when it is raising but doesn't miss it my much either.

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • William1

Posted August 10, 2008 - 06:58 AM


This thread I did covers the O-Ring mod, AP timing and leak jet selction:

And this is the specific part for the AP timing:

  • pdrides

Posted August 10, 2008 - 10:59 AM


Thanks, that's the info I needed


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.