O.S. Engines

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

Screw Fixing 40x5mm WLA-2: GT55

Cap Screws M3 5x20(10): FL-70

Cover Plate Screws (10): 120AX

Screw Set (12): 108FSR

Tappet Screw: FS-20 48

Thermo Insulator: GF30

Screw Set: FS-48 Surpass

Allen Head Screws M3.5x12 (10)

Slide Valve #21JS

Carburetor Body: 21J3

Carburetor Body: FS-52

Carburetor Rotor: #60W, FL70

Carburetor Rotor: 61ER

Carburetor Rotor: 70T, GF30

Connecting Rod: FS81 Alpha

Connecting Rod with Retainers: Speed T1201

Connecting Rod: GGT10

Cover Plate Assembly: 15LA

Cover Plate: 21VG-P

Cover Plate: GF30

Crankcase: 46AXII

Crankcase: 55AX

Crankshaft: 15CV-A