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
Wayne_Thompson

450 Piston and Rings

9 posts in this topic

I am in the process of changing my piston and rings. It appears that the new set of rings are bad. The shoulders on the oil ring are non existent so the outer rings will not stay in. Was able to get all the rings in the piston once then it was so tight it would not move in the cylinder. This was a Wiseco piston kit. Has anybody else had this problem and what was the solution? :cry:

Share this post


Link to post
Share on other sites
I am in the process of changing my piston and rings. It appears that the new set of rings are bad. The shoulders on the oil ring are non existent so the outer rings will not stay in. Was able to get all the rings in the piston once then it was so tight it would not move in the cylinder. This was a Wiseco piston kit. Has anybody else had this problem and what was the solution? :cry:

just curious...did you try installing the cylinder with the piston on the rod? The oil rings are VERY fragile. Sounds like possibly one of the oil rings came out of place while installing. Tdub

Share this post


Link to post
Share on other sites
just curious...did you try installing the cylinder with the piston on the rod? The oil rings are VERY fragile. Sounds like possibly one of the oil rings came out of place while installing. Tdub

I tried both ways. First with the piston on the rod. When that didn't work, I removed the piston from the rod. No luck either way.

Share this post


Link to post
Share on other sites
Buy OEM Piston and rings Problem solved. I'm done my piston and rings lots in my 450 and not a problem.

I wanted to go OEM but after a month on back order I went aftermarket. I guess there is a reason they are back order??

Share this post


Link to post
Share on other sites

They shouldn't be on back order (From Yamaha Canada). I ordered mine and within the week they had it, but out of the US it could be different. I just got my motor back together a few weeks ago. I wouldn't put in aftermarket in my motor I just dont trust wiseco product I have had back luck with them in the past. The OEM parts have proved themselves to me that they work. I would rather spend them extra money to make it right.

Share this post


Link to post
Share on other sites

I'm guessing you checked the ring end gaps in the cylinder to be sure they sent the right size set?

Share this post


Link to post
Share on other sites

Well, all is well. They sent the wrong rings. Everything back together and it runs awesome again. Thanks for the advice everybody!! I will only go OEM from here on out. :cry:

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