O.S. Engines

Needle Valve Assembly 12F2-B: Speed T1202

Rotor Stop Screw #2FB #2F

Slide Valve 22C(B): Speed B2102

Crankcase O.S. Speed T1204

Outer Head O.S. Speed B21 Adam Drake Edition 3

M2001SC Manifold: 21XZ-R, 21VG

Cover Plate: 21VG-P

Crankshaft: B2101 Speed

Outerhead: 21XR-B Version II

O.S. Cylinder Piston Rod Set Speed: T1203

Outer Head: R2102 Speed

O.S. Dust Cover 21E 21F 22D 22J

Piston Pin: 30VG

Carburetor 40L: 55HZ Hyper

#7 Glow Plug, Medium Hot Air

Breather Nipple: FS-20, 40

Cam Follower: FS-61, 48 Surpass

Carburetor Body: 70R, FS155A-P

Cover Plate: GGT10

Crankcase: 37SZ-H

Cylinder Head: 56 FS

Cylinder Jacket: FT-160

Cylinder Liner: 91FX

Cylinder Liner: 56 FS