Magneto Cylinder (aka stator housing, stator cylinder, magneto housing) - Yamaha PW80. G80-F09-A. This magneto cylinder is most commonly (though not exclusively) used for Yamaha Peewee 80 aka Yamaha PW80. Inner Diameter (ID): 85.1mm Outer Diameter (OD): 110mm Overall Height: 40.4mm Center Hole Mount (Tapered): 12/16mm