Site upgrade in progress... Core site functions are working, but some non-critical features/functions will be temporarily unavailable while we work to restore them over the next couple of weeks.

Please post any bugs you encounter, but before you do, check to see if it's already listed.

Thanks for your patience while we work to improve the community.

Sign in to follow this  
Followers 0
Big Tim

Couple of questoins

3 posts in this topic

I found the bike I have been looking for and I am picking it up soon.

2000 WR 400 With Hotcams, GYTR Carbon ex, Scotts Steering stabelizer and a bunch of other stuff.

I had a couple of questions.

What should I look for when picking it up?

What are the first things should do when I get it home?

What can I do to help increase the bottom end power?

Has anyone gone with bigger Valves? Does Kipple White make them?

Has anyone ever used the Carbon Fiber airbox and did it help anything or just look really cool?

Does the 2000 WR400 have a high speed compression adjuster?

That should be enough questions for now.


Share this post

Link to post
Share on other sites

First thing to do on that old bike is to check the valve clearances and shim to spec.

Jetting the old beasts were a nightmare. Search this forum for BK mods and jetting old posts from a few years ago.

Get an aftermarket FMF Powercore type pipe and Power now for more bottom end.

New valves like kibblewhite SS are a great idea an they do come oversize.

You will have to send the head out to have new seats cut and the head modified for the larger valves. You could always buy a replacement head complete from Yamaha

Dont think a carbon air box wil do much for you. :banghead:

Share this post

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  
Followers 0