RMX250 exhaust pipe question

[rok-the-boat]

I have an old RMX250 I have rebuilt. I bought a complete gasket set and notice a kind of O-Ring and am wondering if it fits onto the front of the exhaust pipe. Any ideas? And fitting the springs to the pipe is gonna be tricky.

[Taz]

The o'ring goes in a groove around the header pipe where it enters the cylinder. You need a spring puller which is basically a hook with a t handle, not hard to make one but cheap to buy also.

http://www.sportspro.co.nz/products/1552-exhaust_components/1539-fmf_exhaust_spring_puller_tool.aspx

[rok-the-boat]

There was an -ring in the kit that fited = problem sorted