New Rings

[Bill Purcell]

I have a 00 YZ 250 and have a wiseco piston and rings with about 20 hours on it. I am thinking of putting on a new set of rings, do I need to replace the bearing and pin also, or can I just put on a new set of rings?

Thanks!

 

[a454elk]

It ain't gonna help you pass on the Vet track pal!!:p
:)

 

[RM_guy]

You can just put rings in it. While you have it apart, measure the piston to see if it is worn past the limits. If it is then replace it too.

 

[Bill Purcell]

Thanks RM_guy!

And Elk, trust me, I'm not going to have that problem again, I'll just make sure that I start ahead of you instead of behinid you :moon: Besides, I know that you're blown after one good moto :p

 

[a454elk]

I'm just reeling you in!!:)

 

[bruce j]

It's easy to check the pin and bearing if you're in the motor anyway. The pin should be nice and snug in the piston, no noticeable play at all. The same for the pin in the rod. Check for play in the big end bearing as well - some side to side play is acceptable here, but none up and down. Use new circlips when you put it back together and make sure they're properly seated. Checking this stuff only takes a couple minutes once the top end is apart, it can save you big problems.

Have fun, Bruce

 

[Bill Purcell]

Thanks for your help guys (excluding Elk :silly: :) ).

Now for part 2 of the question: Since I have a Wiseco piston, do I need to replace the rings with Wiseco or can I use OEM?? I'm guessing that I should stick with Wiseco, but. . .

Thanks again.:)

 

[a454elk]

Anytime Bill!:p
Go with the thin rings, that way you can squeeze by on the Vet track!:)
Elk

 

[Bill Purcell]

I think that I'll have to look for some of those EXTRA WIDE rings that you seem to be using now'a days :uh:

 

[a454elk]

I figure that since I paid to use the track, I'd enjoy the WHOLE thing!!:) You can use me as a berm if you want, it's been done before. HAHAHA
Elk

 

[Bill Purcell]

Sounds good, then you'll be there to cushion my fall :)

 

[RM_guy]

Hey, why don't you two get a room:p :p

 

[a454elk]

I ain't roomin with THAT guy, he rides a YAMAHA!
Elk