O.S. Engines

Cap Screw 4x20mm (10): GT55

Main Shaft: 3815-1000

Crankshaft Bearing, Front: FS-91

Camshaft: FS-91 Surpass

Head Gasket: B2101 Speed

Screw Metering WLA-2: GT55

Valve In Ex: 90-320

Needle Assembly: #61B, 91HZ

Mid Needle Valve Assebly: 61ER, 941HZ-R

Throttle Lever #2F #2FB

Under Cover: IL-300 Dia-Star

Cylinder Head: FS-62V

Reed Valve Assembly: GT22

Rocker Arm: FS115A-P

Cap Screw 3x28mm (10)

Main Shaft: OMA-2810-1250

Inner Head With O-Ring: O.S. Speed B2104

Cam Cover: FS155A-P

Connecting Rod: 140RX

Standoff 5x25.4mm 1" (4): GT55

Rocker Arm Support Assembly: FS-20

Cylinder Head Screws: 56 FS

Breather Nipple: FS-20, 40

Cover Plate: GGT10