Buttons that wasn't targeted at you, more so the number of people asking how he attached the sprocket, I should have realy gone in further depth but figured people would understand as i won't have been the only that has that view. So I'm sorry for the confusion Buttons
Brains, have you considered doing a video to show how well it performs?
Also what piston and crank have you used to up the cc that high? the only combinations i was aware you could use on those engines are 39cc 47cc 49cc and 52cc. have you used happy time componentry or somthing similar?