Hi All, not been on here for a while as the restoration project stalled while I was having work done on my house. However, I'm starting again and am now at the stage of re-assembling the engine. I am fitting new pistons from a Honda 750 four, which have been machined to fit (re-profiled crown and enlarged gudgeon pins). I can't find a figure for the piston ring gap that would be required on the original pistons let alone a figure for the pistons that I'm using. An advice would be greatly appreciated.