4 stroke Bicycle Engine mode:142FA. Engine type:Single cylinder,Air-cooled,4stroke Bore×stoke:42×38 Displacement(cc):49cc Max.Powe(kw/rpm):1.2/6500 Type of Ignition:Magnetos non-contact induction power storage Start mode:Hand-operated Net weight(kg):7KG Dimensions(mm):240×240×250