OS Engines

Carburetor Body: 61T, FS-62V

Woodruff Key: 61-91

Speed Hex Wrench Ball Driver 2.0mm

Crankshaft: O.S. Speed B2104

Connecting Rod: R2102, Speed 21XZ-GT

O.S. Cover Plate Speed: T1203

O.S. Crankcase Speed: T1203

Cylinder Rebuild Kit: 21XR-B

Cylinder & Piston: 21XZ-GT Speed

O.S. Inner Head with O-Ring Speed B2103 Type R & S

Needle Holder #20E

Metering Needle Assembly: 21VG

Valve Spring: FS-26S-C

#6 A3 Glow Plug Hot Air

Cylinder Head: 91SX-H Complete

Radial Mount: 72FS-a

Carburetor Rotor: #61B, 91HZ

Carburetor Rotor: 80T Sirius 7

Cover Plate: FS91-P

Crankcase Plug: GT55

Crankshaft: 50SX

Cylinder Head: 140RX

Cylinder Head: GT15HZ

Cylinder Liner: 50SX-H