HEADS UP!!!

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
spanky_kjm

engine mods wr 450's

3 posts in this topic

anyone tried a big bore kit on there 450'S. i found a 470 kit and a 490 for yz and was wondering if anyone did it the there wr. also there was different stages you can do and im not sure just how radical i want to go. any suggestions would be cool.

Share this post


Link to post
Share on other sites

You don’t need to raise the compression and bore the cylinder to make that WR rip! Take a look at my post or better yet… Ride my WR!

Mike Hobbs

ORC

Share this post


Link to post
Share on other sites

The question I have is the AIS/ Cal green sticker legal stuff, does this cut back on power, does it affect getting an aftermarket pipe. Does it need to be taken off, if so will it affect the motor. Would you get an 04 or 05, didnt the 05 get the new fork? Which would you buy. I dont want California garabage on my bike a Q pipe and Pbomb is enough.

Which would you buy??????????????

Thanks,

TeamOatmealPie R.

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