Metal on metal sound when O-rings from exhaust wear out.

[GasGas]

I replaced the lower pipe mount with some yz parts. This has seemed to make the biggest difference. I also switched the exhaust spigot out for a LTR unit as mine was quit worn. I will see. If I can find the part numbers when get home next week.

[Scar13]

Thanks Everyone!! Ill be racing this weekend and after Ill look at everything posted!!

Thank you all greatly for your help!

[andoman]

Put a sleeve of hose on each spring. If not, the buzzy springs are adding to the other vibration issues you are having.

[Moto7man]

Yeah, that squeal is loud and annoying. Here is the general fix. Below, is the thread on the vitron rings by Mcmaster. There are two sizes. I use the 44mm id x 3mm wide size some people use the 3.5. I had the same squeal but only after I had jumped over a log or something that hit the bottom of the pipe.

After replacing the rings with new ones the squeal was gone. I'm careful not to jam the headpipe into anything and for the last 8 months no problem. My pipe seems to seal tight against the cylinder so I haven't been beating it with a hammer, at least not yet.

http://www.gasgasrider.org/forum/sho...t=vitron+rings