OS Engines

Drive Washer: FS-95V8

Cylinder Brass Head Gasket: 75AX

Cylinder & Piston Assembly: O.S. Speed R2105

Steering Arm: 21XM

Piston Pin: 50SX-H

Piston Ring: FT-300

Muffler Assembly Screws #E-2050 (4)

Exhaust Header Pipe Assembly F-5050: FS-95V

Piston Pin: GF30

Motor Mount: FT120, FT160

Front Bearing: 61FX

Crankshaft: O.S.SPEED R21GT2

Dust Cap Set: RZ-V P

Mixture Control Valve #70C: FS120 Surpass II

Head Gasket FS155A-P

Choke Valve: 120-300

Piston Ring: 55HZ

Piston Ring: 108FSR

Piston Ring: 91FX

Head Gasket: 200 Surpass

Carburetor Retainer: 55HZ Hyper

O-Ring 10.5mm: GT55

Needle Control Lever In Flight Needle Valve

O.S. Crankcase Speed B2103 Type S & Type R