Hello.
whilst decoking the barrel, I noticed the stub which fits into the exhaust pipe is flat across the end. this will act as a step which I assume would affect the return pressure wave.
Is there any advantage to rounding it off and slightly tapering it?
That's the question now the answer to another problem. the barrel is original and has about 3000 miles on it, the piston showed signs of blow by and the barrel hone marks are still clearly visible. I did a bit of research and fitted new rings, gave the bore a light hone. it's assembled dry. I'm going to ride it gently until the engine's up to temperature and then ride like I stole it