O.S. Engines

OS Engines Crankcase: Sirius 7

OS Engines Piston: 91HZ

OS Engines Piston Ring: 108FSR

OS Engines Carburetor 61G: 91HZ-R Speed 3D 3C

OS Engines O-Ring Small: 120Surpass

OS Engines Piston Pin Retainer: 81VR-M

OS Engines Cylinder Gasket: GT60

OS Engines Drive Shaft Bearing: Sirius 7

OS Engines Carburetor Screw: #103A2A

OS Engines Inner Head: O.S.SPEED R21GT2

OS Engines Screw Set (8): 12CV-X

OS Engines T-1060 Silencer Clamp

OS Engines Rocker Arm Thrust Washer: Sirius 7

OS Engines Piston Ring: GT33

OS Engines Needle Valve Assembly #10J #10M

OS Engines Cylinder Jacket: IL-300 Dia-Star

OS Engines O-Ring S3-FKM 61H: GT15

OS Engines Crank Pin Stop Screw: Sirius 7

OS Engines Crankshaft: 46AX

OS Engines Carburetor Reducer 7mm, Yellow: 21XZ-B

OS Engines Under Cover Gasket: IL-300 Dia-Star

OS Engines Prop Washer: GT55

OS Engines Rear Bearing: 61-300

OS Engines Carburetor Reducer 8mm, Red: Speed 21 V-Spec