RMX250

rupertmja1, Apr 12, 6:01pm
I have an old RMX250 I have rebuilt. I bought a complete gasket set and notice a kind of O-Ring in there and am wondering if it fits onto the front of the exhaust pipe. Any ideas!

kaymay88, Apr 12, 6:47pm
could be for a few things, though when i bought a gasket kit for my CR, it didnt come with exhaust stuff.

Usually there is a ribbed rubber grommet thingy that sits inside each of the joins in the exhaust pipe where it slips together.

The O ring you are talking about will more than likely be for a water item.

On the cylinder, on the intake side, is there a metal pipe that is for water hoses! - if so you will probably be held on by a couple of 8mm or 100 bolts. undo them, and youll find an Oring inside - Id bet thats what its for.

Bit hard to be sure without knowing year and model etc though

rupertmja1, Apr 12, 7:36pm
Mine's a 1990.

tonyrockyhorror, Apr 12, 8:04pm
How big is the o-ring!

rupertmja1, Apr 13, 6:55am
Not sure - will take it off again today to have a look.

tonyrockyhorror, Apr 13, 8:11am
I don't understand. If you don't know where it's from, where did you fit it therefore requiring you to take it off again!

tonyrockyhorror, Apr 13, 8:36am
There's one on the power valve. ID 22.6mm, 1.9mm diameter
http://www.bikebandit.com/1990-suzuki-rmx250-rmx250l/o/m147881#sch258944
Item #17

tonyrockyhorror, Apr 16, 9:04am
Yeah, no problem, don't mention it.

Another one for the "don't bother with" list.