hi folks. right am new to bike and just baught a 1990 RM250 and found it to be a bit down on power. found the power valve conecting rod to be off at the valves removed the valves and found one broken at thop of the guide (guide top ring coming away from guide its self)
iv price a new one up and its very dear and wonderd if the vavles for the 125 and 250 where the same sizes and if i was able to get one would it be ok to use on the bike?? thanks for any comments.

 

have a safe drive

 

what you might do is take your power valve to your local auto parts store and see if you can get a roll pin that fits. you can get cheap packages of roll pins of the length you need