O.S. Engines

M2004SC 85mm Manifold

Mufler Body F6020: FS155A-P

Needle A IFNVA

Screw Assembly: F-5030 FS81 Alpha

Needle Valve Assembly: #61B, 91HZ

Needle Ext Cable: FR5 300

Valve In Ex: 90-320

Intake Manifold: GF30

Cylinder Liner: FR5

Piston Pin: 200 Surpass

Carburetor Rotor: #61B, 91HZ

Regulator Seat: 61E-R

O-Ring Large: 120-300

Crankcase: GT15

Crankshaft: FS120SEIII, FS120SE

Piston: GT33

Lever Metering Pin WLA-2: GT55

Slide Valve Stop Screw #21J

Manifold Nut M9

Pushrod Cover: FS155A-P

Crankcase: 21XZ-B Speed Spec II

Crankshaft: 50SX

Screw Set (12): FS-120 Surpass

Screw Set (12): FS-91 Surpass