Why is my dirtbike leaking oil out of the connection points in the exhaust and what should I do about it?

I have a 1999 CR250.Why is my dirtbike leaking oil out of the connection points in the exhaust and what should I do about it?
If your bike has a two stroke engine, it burns a mixture of gas and two stroke oil. That would explain the oil. Try a high temperature seal ring. You can probably get one at the cycle shop and maybe auto parts store.Why is my dirtbike leaking oil out of the connection points in the exhaust and what should I do about it?
So thats a 4 stroke right? Oil in the exhaust is bad..... you might need new rings, valve seals and the valves re faced.