O.S. Engines

Cover Plate: FSa-56II

Crankcase: 50SX-H

Crankshaft: 75AX

Crank Pin Stop Screw: GT22

Gasket Set: 120AX

Locknut Set Spinner: FS-52

Pushrod: 200 Surpass

Piston Pin Retainer: GT55 (2)

Piston Pin: 108FSR

Tappet Screw: FS-20 48

Throttle Stop Screw #40D

Carburetor #10G: 15LA

Muffler Extension: #762

Intake Manifold Assembly B: IL-300

Rear Bearing: 40-50

Carburetor Rotor: #60K

Carburetor Rotor: 70T, GF30

Connecting Rod: 120AX

Inner Head O-Ring: (S-32)(Black) B2104

Exhaust Header Pipe M1021: 21TM

Crankcase: B2101 Speed

O.S. Outer Head Speed B2103 Type R

T-2100SC Tuned Pipe

Carburetor Body: 21JN