OS Engines

Cam Assembly Screw Set: SIrius 7

Cam Cover: 56 FS

Choke Arm Assembly: WLA-2, GT55

Back Plate: 40-46 LA

Cylinder Head: FS110A

Drive Washer: FS155A-P

Exhaust Pipe Nut: FS-120 Surpass

Cylinder Head Gasket: 35AX

Muffler Screws 20-46 (2)

Needle: 15LA

Needle: #60B

Piston Ring: FT-120 240

Spark Plug 1 4-32 RCE: GF30

Return Spring: #6H, #7H, #8H

Slide Valve #60U

Crankcase: O.S. FS-64V

Piston Ring: GT33

Valve Spring Retainer: F20-300

Cylinder & Piston: 65AX

Exhaust Pipe Nut: F40-300

Gasket Carb IP: #10, FR5

Cover Plate Gasket: 35AX

Gasket Carburetor: 120-240

Piston Pin: 55HZ Hyper