Hi Jack
Yes I will take a photo when the motor is back together, it is now un-seized, turns out that it was not the piston that was stuck it was much simpler the backing plate was corroded to the flywheel. Got it loose by running a engraving bit around between the two. Woke up to this when I tried to remove the flywheel and the backing plate started to buckle as the flywheel just started to move. Have removed piston from the cylinder to check both - they are fine and rings are free in the groves, can still just see the cross hatch on the cylinder.
The above photo shows an extra bolt in the crank case mine only has in total four bolts in it. I will get some photos of the motor in bits tomorrow when light is better and its not raining.
Regards
