I'd say a two stroke exhaust sees a LOT of gasoline. Unburned fuel passes out in to the exhaust and is pushed back in by the returning pressure wave. Certainly a lot more gasoline passes through the exhaust on a two stroke than a four.

I just hope the copper stuff, if it is okay to use on the exhuast, is better than the orange poo. 100% failure rate with that stuff. Out of the six places I used it to seal the exhaust, it failed on every joint.

Anybody used it?

Anybody able to comment on my plan to use vitron and copper gaskets on the exhaust?