O.S. Engines

Crankcase: 21XZ-B

Heat Sink Head: 50SX-H

Flex Pipe 240mm 1114A: FT-300

High Pressure Check Valve: 91HZ-R

Cylinder Head Screws: 56 FS

Valve Spring: FS155A-P

Outer Head: R21

Carburetor Rotor: #120AX

Slide Valve 12F2: 12XZ Speed Spec 3

Throttle Lever: #20C

Carburetor 21J4 (B) B21 Adam Drake II without Reducer

Dust Cover: #2BK

Cylinder Head Gasket, .2mm: 91HZ

Back Plate Parallel Pin: Sirius 7

Cylinder Liner 91HZ-R Speed 3D

Pushrod: FS72 Alpha

102 Super Air Cleaner

Carburetor Body: #80R, FS-200S-P

Rocker Cover: GF30

Cylinder Head: GT33

Back Plate: Sirius 7

Locknut Set Spinner: FS-52

Throttle Arm Assembly: 40L, 55HZ Hyper

Cylinder & Piston: 25LA