OS Engines

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

Silencer Body: F-4051 O.S. FS-64V

Cam Follower: Sirius 7

Carburetor Body: 22B, 21XR-B

Valve Spring Retainer: F20-300

Main Shaft: OMA-2815-1100

Cylinder and Piston Assembly: O.S. Speed B2104

Carburetor 22B: 21XR-B

Front Housing: GT60

Crankshaft: 21XZ-R

Rear Bearing: GT60

Speed Ball Driver Replacement Tip 2.5

Rear Cover Plate: GT33

Rocker Arm Support Assembly: FS-20

Mixture Control Screw: #2F and #2FB

Needle #7G #7D #7H

Crankcase: GT33

Piston Ring: GT33

Needle Valve Assembly #10J #10M

Cylinder Jacket: IL-300 Dia-Star