OS Engines

Needle Assembly #60R

Valve Spring: FS-70 91SII

Carburetor Screw: FS61-FT300

Connecting Rod: FT-120, 160

Dust Cover: 30VG

Mixture Control Valve #20K

Heat Sink Head: 21TM

Piston: 56 FS

Muffler Body F-5050: FS-95V

Muffler E-5040: GT22

Crankcase O.S. Speed T1204

O.S. Cylinder Piston Rod Set Speed: T1203

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

Cylinder Rebuild Kit: B21 Speed Adam Drake

Ignition Module IG-06: GT15

Cylinder & Piston: 25LA

Gasket Carburetor: FS-120

Exhaust Header Pipe Assembly F-4050: FS-62V

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

Gasket Head, .2 Aluminum: 21XZ-R

Carburetor Reducer 6.5mm, Blue Aluminum

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

O.S. SPEED R21GT2 Combo Set

Carburetor Reducer 7mm, Yellow: 21XZ-B