This is what my cylinder looks like from the exhaust port. Plus there's a Nick in the piston top. Hard to get a picture with my phone and auto focus.
The previous owner said he just rebuilt it when I bought it. No bore just honed it.
This is what my cylinder looks like from the exhaust port. Plus there's a Nick in the piston top. Hard to get a picture with my phone and auto focus. View attachment 24193