O.S. Engines

Carburetor Reducer 8mm, Red: Speed 21 V-Spec

Inner Head: 25XZ

O.S. Carburetor Body 22D (B) Speed B2103 Type S

Crankshaft: 35-40FP

Cylinder Rebuild Kit: B21 Speed Adam Drake

Crankshft Ball Bearing, Rear: 12TZ Spec II

Inner Head O-Ring: (S-32)(Black) B2104

Spinner Nut: 60-91

Muffler Extension: #744B

Piston Ring: 40SF

Crankshaft Bearing, Front: FS-91

Needle Holder 21M: 21XZ-R

Drive Washer: 91FX

Piston: 37SZ-H

Gasket Carburetor: 61-108

Cylinder Liner: 50SX-H

CYLINDER/PISTON SET O.S. MAX-B21

Outer Head: O.S. Speed R2105

O.S.SPEED B2105 COMBO SET

CYLINDER/PISTON/ROD SET: OS SPEED B2105

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

Crankcase: O.S. Speed R2105

MIXTURE CONTROL VALVE ASSEMBLY 20K2

OUTER HEAD O.S.SPEED B2105