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
TAS_Duner

New chain noise?

6 posts in this topic

This may seem strange, but I put on a new x-ring chain on my 04 YZ450F and now it is making a horrible noise up front by the counter sprocket. It didn't do it before with my worn out stock chain. I still have the case saver (chain guide) and front chain guard cover. It only does it when the bike is under power, but doesn't do it when it is coasting. I am very puzzled and afraid to ride it because of the noise. We are heading out tomorrow for a weekend trip and doing know what to do. Any help would be appreciated.

Share this post


Link to post
Share on other sites

First thing to ensure is that your chain is adjusted correctly with the right amount of slack, AND that it's aligned properly - don't trust the alignment marks on the swingarm, use a straight edge alongside the sprocket so that it runs forward and under the chain. With a properly aligned sprocket, the straight edge should parallel the chain, not cross under or extend away from it.

The new chain is wider than the old stocker, and if you've used up a lot of the chain slider on top of the swingarm with your old chain, the new one could be searching for it's mold....the wider x ring can't slide in the same grooves as the old roller one. May want to replace the slider while you're at it.

Hope this helps......

Share this post


Link to post
Share on other sites

Did you change the sprockets also? Putting a new chain on old sprockets will make noise and quickly wear out your new chain and what is left of the old sprockets.

Share this post


Link to post
Share on other sites

One thing I forgot to mention....take a look on the inside of the subframe where the chain passes...if it's shiny and scraped, then the chain is hitting it (probably due to alignment issues or getting kicked around by the slider).

Share this post


Link to post
Share on other sites

Do I need to replace the slider also when I switch from a non-o ring to an o-ring chain. If so, who do you recommend as a replacement?

Share this post


Link to post
Share on other sites

Not unless it's worn heavily. The stock slider is fine, but you should do This Modification to it, especially since you ride in sand (guessing by your screen name)

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