50 cc motorcycle engine for cubs,mopeds ,very good performance . The detailed imformation of engine is as follows : Parameters50 CC70 CC90 CC110 CC125 CC150 CCEngine modelIP39FMA147FM147FMF152FMH156FMI163FMIEngine type1 cylinder,4 stroke,2 valves1 cylinder,4 stroke,2 valves1 cylinder,4 stroke,2 valves1 cylinder,4 stroke,2 valves1 cylinder,4 stroke,2 valves1 cylinder,4 stroke,2 valvesCooling ...