I don't have photos, but if you fit a full-length piston to the rod and turn the crank down towards BDC, it will be immediately apparent where you need to grind. It's not a lot that needs to be taken off.

It's the front (exhaust side) of the case on both cylinders that needs attention.
_________________
Andy.
NSR-WORLD.COM

Please keep all responses to Forum posts on the Forum so that others may benefit.

Please DO NOT PM me for technical advice. My time is precious, and you will probably receive a faster response on the Forum anyway.

Check us out on Facebook! Please "like" our page!