... engine,4-stroke,vertical,water-cooled Displacement:249.4ml ------------------------------------------------------------------ Model:LC170MM-2Type:single cylinder,4-stroke,EFI,water-cooledDisplacement:249.4mlBorexStroke:70x64 ... slipping.--------------------------------------------------------------------- 250CC Dirt bike Engine ,Motorcycle engine,Loncin Engine,single cylinder,4-stroke,water cooled