1973 Yamaha SC500 Specifications and Specs
Specifications and workshop reference information for the 1973 Yamaha SC500, including engine, chassis, service data and setup details.
Note: Specs are compiled from factory data, manuals and owner feedback. Bikes vary — if yours is different, jump into the forum and share it.
General Specifications
| Model | Yamaha SC500 |
| Years | 1973–1974 |
| Engine Type | Air-cooled, 2-stroke single |
| Displacement | 496 cc |
| Bore x Stroke | 95 mm x 70 mm |
| Compression Ratio | 7.1:1 |
| Carburetor | Mikuni VM38 | Replacement Options |
| Ignition | C.D.I. |
| Ignition Timing | 2.7 mm BTDC |
| Spark Plug | NGK B-8EV |
| Starting | Primary kick |
| Max Power | 44 hp @ 6500 rpm |
| Max Torque | 5.12 kg·m @ 6000 rpm |
| Transmission | 4-speed constant mesh |
| Final Drive | Chain |
| Lubrication | Autolube oil injection |
| Cooling | Air-cooled |
Service Specifications
| Gearbox Oil Capacity | 1.2 litres |
| Oil Tank Capacity | 0.5 litres |
| Fork Oil Capacity | 194 cc per leg | Fork Oil Levels |
Dimensions
| Wheelbase | 1420 mm |
| Ground Clearance | 225 mm |
| Weight | 107 kg (dry) |
| Fuel Capacity | 8 litres |
| Bearing Sizes |
Bearing Finder |
Chassis & Suspension
| Frame | Steel double cradle |
| Front Suspension | Telescopic, coil spring oil damper | Fork Oil Levels |
| Rear Suspension | Swingarm, twin shock, coil spring oil damper |
| Front Brake | Drum |
| Rear Brake | Drum |
| Front Tire | 3.00-21 | Tyre Size Guide |
| Rear Tire | 4.60-18 | Tyre Size Guide |
500cc Other Specs
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