Hey there, I am parting out a mostly complete mc18. I also have 2 extra engines, one that threw a rod and another that is missing a piston and jug, the engine that is in the bike is a dry clutch sp engine #Mc16e-1135756 which spins freely and seems to have compression but the right side will need a piston. I would part it out, sell as a whole or I would be happy to add cash to trade for an mc21 that has papers. THIS BIKE HAS NO PAPERS or I would also be interested in buying an mc18 frame with papers. If you have any questions just ask, thanks!