| MODEL | YAMAHA XJ 750R 1981 - 1982 |
| Year | 1981 - 1982 |
| Engine Type | Four stroke, transverse four cylinder, DOHC, 2 valves per cylinder |
| Displacement / Capacity | 749 cc / 45.6 cu in |
| Bore X Stroke | 65 x 56.5 mm |
| Compression Ratio | 9.5:1 |
| Cooling System | Air cooled |
| Max Power | 59.6 kW / 81 hp @ 9000 rpm |
| Max Torque | 48.5 Nm / 35.7 lb-ft @ 7000 rpm |
| Ignition | Transistorized |
| Induction | 4x 32 mm Hitachi CV carburettors |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 5 Speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | Telescopic fork; 150 mm travel |
| Rear Suspension | Swingarm with twin shocks; 96 mm travel |
| Front Brakes | 2x 294 mm discs, 2 piston calipers |
| Rear Brakes | Drum |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 775 mm / 30.5 in |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | 218 kg / 480 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 100/90-18 |
| Rear Tyre | 120/90-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 19 Litres / 5.0 US gal |
| Fuel Consumption | — |
| Top Speed | — |
An early-1980s chain-driven air-cooled 750 four in the XJ range, sharing the E-model's 749 cc engine with 81 hp. It rode on an 18-inch wheel at each end and has twin front discs with a rear drum. Little narrative information is published for this variant.
