Rave valve rebuild or replace

[Tmann]

I need to rebuild or replace my rave valves. Oil leaking out of them and lack of RPM. Should I put stock back in or are there any good aftermarket ones? Pretty stock sled 1996 670 summit rotax

 

[sledsrock]

Just rebuild what you have. Nothing wrong with the stock valves, not even sure if anybody makes a aftermarket valve for the 670.

 

[doozack]

I agree with sledsrock, just clean and run what you have. Take it apart and clean the valve. Make sure the bellows seal is good, if it runs out of the hole in the assembly check the bellows. Otherwise new gasket.