wr400f hesitates help needed

2 replies to this topic
  • corywr400f

Posted July 15, 2008 - 09:09 PM


okay guys i have a 1998 wr400f my bike just always hesitates in the low rmps and it happens in every gear. if anybody has any suggestions cn you please help?

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • matt4x4

Posted July 16, 2008 - 03:57 AM


Carb - set your pilot fuel mixture as per instructions - search for this.
If that doesn't do it, remove it - remove everything (including AP diaphram and pushrod) except the TPS and clean it thoroughly, put it back in and test it.
If it still hesitates, turn in your AP timing screw a tiny little bit (1/8th of a turn) and that may fix it - did for me.
When it's out - check for a chip in the slide plate, first gen FCR's are known for that

Document all settings and changes before disassembly and during so you can get back to where it all was.

  • corywr400f

Posted July 16, 2008 - 08:00 PM


ok thanks ill give that a shot


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.