OS Engines

Pushrod Cover Assembly: FS72 Alpha

Carburetor Rotor: #61B, 91HZ

O-Ring Large: 120-300

Crankcase: GT15

Piston: GT33

Lever Metering Pin WLA-2: GT55

CYLINDER/PISTON/ROD SET: OS SPEED B2105

Slide Valve Stop Screw #21J

Screw Set (12): FS-120 Surpass

O.S. Crankshaft OS Speed R21GT

R21 1/8 On-Road Club Racer Engine

P3 Turbo Glow Plug V-Spec Ultra Hot Off-Road

T-1070SC L52 Pipe Set

Carburetor Body: #60M

Piston: FS72 Alpha

Cylinder Liner: 50SX-H

Rocker Cover, Black: FSa-56II

Outboard Unit Assembly: 21XM V2 Outboard Marine

Crankshaft: 30VG

Thrust Washer: BGX-3500

M2003SC 70mm Manifold, Top Speed, On-Road

Slide Valve 12D: 18TM

Main Metering Needle (2 oring): 21M3(B) Speed R2105

Motor Mount: 15LA