| MODEL | KAWASAKI ZX-R 750 J1 1991 |
| Year | 1991 |
| Engine Type | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder |
| Displacement / Capacity | 749 cc / 45.7 cu in |
| Bore X Stroke | 71 x 47.3 mm |
| Compression Ratio | 10.8:1 |
| Cooling System | Liquid cooled |
| Max Power | 100 hp / 74 kW @ 10500 rpm (92.8 hp / 69.2 kW at rear tyre @ 10700 rpm) |
| Max Torque | 7.45 kgf-m / 53.8 lb-ft @ 9000 rpm |
| Ignition | Digital |
| Induction | 4x 38 mm Keihin CVKD (constant velocity) carburettors, Ram Air System |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | Wet sump, 10W/40 engine oil |
| Gear Box | 6 Speed |
| Clutch | Multi plate wet (oil submerged) hydraulic slipper clutch |
| Final Drive | Chain, 530 pitch, 110 links (14T front, 46T rear) |
| CHASSIS SPECS | |
| Frame | Aluminium perimeter |
| Front Suspension | 43 mm upside-down forks, adjustable ride height, 13-way rebound, 120 mm / 4.7 in wheel travel |
| Rear Suspension | Uni Track monoshock, adjustable ride height and preload, 4-way rebound, 120 mm / 4.7 in wheel travel |
| Front Brakes | 2x 320 mm discs, 4 piston calipers |
| Rear Brakes | Single 230 mm disc, 2 piston caliper |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | 1420 mm / 55.9 in |
| Ground Clearance | — |
| Dry Weight | 195 kg / 420.9 lbs |
| Wet Weight | 221.6 kg / 487.2 lbs |
| WHEEL SPECS | |
| Front Tyre | 120/70 ZR17 (36 psi standard) |
| Rear Tyre | 180/55 ZR17 (41 psi standard) |
| FUEL SYSTEM | |
| Fuel Capacity | 18 Litres / 4.7 US gal |
| Fuel Consumption | 16.3 km/l (average) |
| Top Speed | 241 km/h / 149.7 mph |
The ZXR 750 J1 was an update of the H models with 43 mm upside-down forks, a lighter aluminium perimeter chassis, a short-stroke engine and 38 mm CVKD carburettors. Its power was held to 100 hp to suit an anticipated European limit, which the page says was never enforced, so it gave up peak power to the earlier H and later K models. The page credits it with better mid-range and better handling than the H2.
