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
mattyd1977

Whistle noise on hard throttle on a yz450f

3 posts in this topic

Has anyone encountered a weird whistle noise when accelerating hard on a yz450f, it can be heard when blipping the throttle when stationary or on the go.I wasnt able to find any thing on a search.

The intake seems to be sealing fine and a mates wr450 does the same.

Share this post


Link to post
Share on other sites

I just fixed mine.

I had to take the header pipe off and looking threw it from the inside i seen a small hole / crack.

The aluminum mounting flange that holds the pipe on was covering it up.

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