thanks DAVE, for the info, just another quickie, on taking the exhaust off to paint, there are no gaskets in any exhaust port, does the 250 not use them??..cheers <!-- s:Help: --><img src="{SMILIES_PATH}/icon_question.gif" alt=":Help:" title="Help" /><!-- s:Help: --> as it was not blowing without..
I'd say the gaskets are missing. I was wondering about this too. Do you need to order these from Yamaha? Would exhaust paste do? I think the gaskets are shown on page 98 of the parts list, item 19, part no. 1HX-14613-00.
I think that's where mine are too, stuck in the ports! I didn't even know what they looked like before tonight but I've looked them up on Wemoto and they're made of copper. I could see something copper in the ports but didn't know if they were part of the engine or not. Don't know what diameter the ports are though, must measure them.
