O.S. Engines

Metering Needle Assembly 21M2(B) Speed: R2101

Intake Manifold: FS-120II

Needle Valve Assembly: 40G

Set Screw #2D #4BK-#5B

T-2060 WN Tuned Pipe

Crankshaft: T1202 Speed

Piston Ring: 160FX

Motor Mount: OMA-28 Series

Crankcase: 30VG

Piston Ring: 56 FS

Speed Hex Driver Replacement Tip 1.5

O.S. Cylindr & Piston Assy OS Speed R21GT

Crankshaft: 25FX

Intake Manifold: FT-120 160

Crankcase: 21XR-B Version II

Crankcase: 21XZ-B Speed

Cylinder & Piston: 12TR (P)-T

Cylinder & Piston Assembly: 28XZ

Inner Head: speed 21XZ-B Spec III

Metering Needle 12F2: 12XZ Speed Spec

Intake Manifold: FS-62V

Crankcase: 12XZ Spec II Speed

O.S. Built-Up Parts Set Cyl Piston OS Speed R21GT

Piston Ring: 140RX