O.S. Engines

Piston: GT33

Slide Valve Stop Screw #21J

Manifold Nut M9

Pushrod Cover: FS155A-P

Crankshaft: 50SX

Screw Set (12): FS-120 Surpass

Screw Set (12): FS-91 Surpass

O.S. Crankshaft OS Speed R21GT

Heat Sink Head: 30VG

Exhaust Header Pipe Assembly: 200 Surpass

Cover Plate: 55AX

Inner Head: T1201 Speed

T-1070SC L52 Pipe Set

Assembly Screw E3080: 35AX

Piston: FS72 Alpha

Cylinder Liner: 50SX-H

Crankshaft: 21XR-B Version II

Rocker Cover, Black: FSa-56II

Piston Ring: FS30S

Carburetor Body: 61T, FS-62V

Crankshaft: 30VG

Exhaust Valve Assembly: 200 Surpass

M2003SC 70mm Manifold, Top Speed, On-Road

Slide Valve 12D: 18TM