| MODEL | YAMAHA XJ 650 SPECIAL 1980 |
| Year | 1980 |
| Engine Type | Four stroke, transverse four cylinder, DOHC, 2 valves per cylinder |
| Displacement / Capacity | 653 cc / 39.8 cu in |
| Bore X Stroke | 63 x 52.4 mm |
| Compression Ratio | 9.2:1 |
| Cooling System | Air-cooled |
| Max Power | 51.8 kW / 71 hp @ 9400 rpm |
| Max Torque | 57 Nm / 42 lb-ft @ 7500 rpm |
| Ignition | Transistorized |
| Induction | 4x 32 mm Hitachi carburetors |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 5 Speed |
| Clutch | Wet multiplate, 7 steel / 8 friction plates |
| Final Drive | Shaft |
| CHASSIS SPECS | |
| Frame | Tubular steel dual cradle |
| Front Suspension | Telescopic forks, coil springs |
| Rear Suspension | Swingarm with twin shock absorbers |
| Front Brakes | Single 298 mm disc, single-piston caliper |
| Rear Brakes | Drum |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | — |
| Wet Weight | 243 kg / 535 lbs |
| WHEEL SPECS | |
| Front Tyre | 3.25 H19 |
| Rear Tyre | 130/90 H16 |
| FUEL SYSTEM | |
| Fuel Capacity | 13 Litres / 3.4 US gal |
| Fuel Consumption | 46.3 mpg |
| Top Speed | — |
The Special was the cruiser-styled early XJ650 variant, with a smaller tank, low-slung look, single front disc and a 16 inch rear wheel. It shares the 653 cc air-cooled shaft-drive four with the other XJ650s. Standing quarter mile was recorded at 13.0 s.
