| MODEL | KAWASAKI Z 750FX-III 1981 |
| Year | 1981 |
| Engine Type | Four stroke, transverse four cylinder, DOHC, 2 valves per cylinder |
| Displacement / Capacity | 738 cc / 45.0 cu in |
| Bore X Stroke | 66 x 54 mm |
| Compression Ratio | 9.0:1 |
| Cooling System | Air cooled |
| Max Power | 54 kW / 74 hp @ 9000 rpm |
| Max Torque | 5.7 kgf-m / 41.2 lb-ft @ 8500 rpm |
| Ignition | CDI |
| Induction | 4 x 32 mm Keihin carburettors |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 5 speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | Telescopic hydraulic fork, 146 mm / 5.7 in travel |
| Rear Suspension | Swinging fork, 95 mm / 3.7 in travel |
| Front Brakes | 2 x 226 mm disc |
| Rear Brakes | Single 226 mm disc |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | — |
| Wet Weight | 246 kg / 542 lb |
| WHEEL SPECS | |
| Front Tyre | 3.25-19 |
| Rear Tyre | 4.00-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 17.3 Litres / 4.5 US gal |
| Fuel Consumption | 37.0 mpg (average) |
| Top Speed | — |
The FX-III was the last of the 750FX line in the page's account, using the same 738 cc, 74 hp engine and Kayaba-damped chassis as the earlier FX models. The road test described its seat as firm, its styling as plain, and the bike as best suited to fast, efficient riding rather than outright speed. The page describes it as a lighter superbike derived from the KZ650.
