O.S. Engines

Exhaust Pipe Assembly: FS81 Alpha

Intake Pipe Assembly: FS-120 SP

Silencer Assembly Screw: 56 FS

Mufler Body F6020: FS155A-P

E3071 Muffler

Muffler Assembly Screw #843 #892

Spring Needle Adjust WLA-2: GT55

O-Ring Muffler Gasket F6020: FS155A-P

O-Ring Large: FS90IIS

Rocker Cover Gasket: 200 Surpass

Crankcase: T1201 Speed

Crankshaft: 18TZ-TX

Cylinder & Piston: B21 Speed Adam Drake

Outer Head: Speed 21XZ-GT

Heat Sink Head: 21TM

Fuel Nipple: #20A, B

Gasket Set: 25XZ

Mixture Control Valve #20K

Needle Valve Assembly 12F2-B: Speed T1202

Rotor Stop Screw #2FB #2F

Needle Valve Assembly #11H #11HB

Crankcase: O.S. Max .12 TG Version 4

Carburetor 21J3-1: 21XR-B Version II

Crankshaft: O.S.SPEED R21GT2

Cylinder Rebuild Kit: R21

Cylinder Piston Assembly: R21

Cover Plate with BPS-1 Mount: 55HZ-R

Crankcase: FS155A-P

Crankshaft: 56 FS

Crankshaft: FS-62V

Crankshaft: GF40

Cylinder Head: FS-120 Surpass III

Cylinder Jacket: Sirius 7

Cylinder Liner: 61SX WX

Exhaust Pipe Assembly: FF-240

Carburetor Gasket: GT60

Master Connecting Rod Assembly: Sirius 7

Needle Ext Cable: FR5 300

Pilot Shaft: GT55

Piston: 91HZ

Piston Pin: GF30

Piston Ring: GT15HZ

Pushrod: FT-160

Rocker Arm Assembly: FS-70 Ultimate

Rocker Arm Assembly: 120 300

Rocker Arm: FS-40-48S

Standoff 5x12.7mm 1/2" (4): GT55

Complete Carburetor Assembly: (61T2) O.S. FS-64V