O.S. Engines

Needle Valve Holder Assembly: 91SZ-H Hyper

Pushrod Cover: FS-91 Surpass

Pushrod Cover Set: Sirius 7

Piston: 70SZ-H

Piston Ring: FS-70 SII

Piston Ring: FS30S

Cover Plate Screws (10): 120AX

Standoff 5x25.4mm 1" (4): GT55

Valve Assembly Intake: FS-91 Surpass

Woodruff Key: 61-91

Crankcase: 46AXII

Crankshaft: 15CV-A

Cylinder Liner: FS-95V

Cylinder Liner: 200 Surpass

Gasket Exhaust: GT55

M11 Header Pipe Nut: FS070S and FS91S II

Silencer Body Gasket: 200 Surpass

Muffler Mounting Screws #873 (2)

Needle Valve Holder Assembly #61B: 91HZ

Piston: 200 Surpass

Prop Washer: 40-61

Rocker Support: FS110A

Valve Spring Retainer: FS-70SII

Carburetor 61H: GT15