Took my cylinder off which i was told had less than 200 miles IIRC.
1. Ring gap is .01"-.02" when it should be closer to .10"
2. piston to cylinder clearance was .002" (not too bad).
3. there are signs of excessive blow-by on the piston so i need to hone to make sure cylinder is round.
4. some of the ports had very little chamfer and exhaust port has zero chamfer.
So...i'm honing the cylinder, putting chamfer on ports, and fixing ring gap. Also going to bevel the piston skirt.
I'll post results later.
Just a F.Y.I for anyone planning on running a 50mm Taiwan bore. And to backup what bakaracer has stated
![wink :wink:](./images/smilies/icon_e_wink.gif)