BIG BORE KIT to 60cc Cylinder Assembly for 1986 YAMAHA YF60 , PW50 ,QT50

PISTON DIAMETER: 44MM

PARTS INCLUDED: Cylinder, Cylinder Head, Piston, Piston Rings, Wristpin, Circlips (2), Head Gasket, Base Gasket, Needle Bearing, Cylinder Studs, Stud Nuts, Spark Plug