OS Engines

Exhaust Pipe: 40-300

Head Gasket: GT33

Locknut Set 3/8M5S

90 Degree Muffler Extension: 120AX

Muffler Screws 10FP FSR (2)

Assembly Screw: 55AX

PCV Valve Set: GF40

Rocker Cover: Sirius 7

Screw Set (8): 37SZ-H

Screw Set (12): FS-120 Surpass

Bearing R-1350ZZ

Crankshaft Clamp: GT15, 105, 91 Heli

Carburetor Rotor: 61ER

Carburetor Rotor: 61E New 91HZ

Spring Choke Friction: WLA-2, GT55

Heatsink Head 55HZ.HZ-R

Piston/Sleeve/Rod set: O.S. SPEED R2106

Slide Valve 2 (21M)

Cylinder Liner 91HZ-R Speed 3D

Cover Plate: GT55

Crankcase: GT33

Pump Unit PD-08: FS-200S-P

Rear Bearing: FS-61

Cam Follower: 91-300