450 motor in a 400 chassis

1 reply to this topic
  • cpsfrench

Posted June 09, 2008 - 08:41 AM


would it be possible to put a yz 450f in a 98 wr 400f chassis. I have a 98 wr and its given me nothing but motor problems so i'm looking at putting a new motor in it. Any advice would be appreciated.

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

Posted June 09, 2008 - 10:19 AM


anything's possible - depends on how much customizing you want to do.
The 2003 frame is somewhat different from the 98-2002 frame - not so much in material and geometry, but there are some differences such as the top motor mounts, the 98 has 3 bolt holes, the 2003 has 2 - whether 2 of the 3 you have will line up - I don't know.

I'm sure it can be done with a little ingenuity and a welder....


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.