The Scorpa SY250 was the hardest one I have ever worked on. Everything has to be exactly where it needs to be or nothing will fit. Throttle cable can't be above the frame between the tank. Carb takes a week to gain access to, If you remove certain things you break others if not paying attention. Again they run and run and run but only if you have a good shoe horn. Also changing a one off spark plug on a Fantic Kroo makes me wonder if they just forgot that spark plugs were needed when laying it out.
--Biff