The Kawasaki H1 500 Mach III was a motorcycle produced in 1972-73. It had a two-stroke, transverse three-cylinder, piston valve engine with a capacity of 498cc. The bike was air-cooled with a compression ratio of 6.8:1 and a lubrication system called Injectolube, which used automatic pressurized injection. Induction was via three Mikuni VM28SC carburetors and ignition was a CDI system. The bike had a maximum power output of 60 hp and a maximum torque of 56 Nm. It had a wet multi-disc clutch, a five-speed transmission, and a chain drive. The frame was a double tubular steel cradle, with telescopic hydraulic forks in the front and dual shocks in the rear. The front brakes were a single 296mm disc and the rear brakes were a 180mm drum. The bike had a wheelbase of 1400mm and a dry weight of 174kg. It could reach a top speed of 200km/h and complete a standing quarter-mile in 12.4 seconds. A road test of the Kawasaki H1 vs the Triumph X-75 was published in Bike magazine in 1974.
Technical specifications:
Make Model: Kawasaki H1 500 Mach III
| Year | 1972 -73 |
|---|---|
| Engine | Two stroke, transverse three cylinder, piston valve |
| Capacity | 498 cc / 30.4 cu-in |
| Bore x Stroke | 60 58.8 mm |
| Cooling System | Air cooled |
| Compression Ratio | 6.8:1 |
| Lubrication | Injectolube, automatic pressurized injection |
| Induction | 3x Mikuni VM28SC carburetors |
| Ignition | CDI |
| Starting | Kick |
| Max Power | 60 hp / 45 kW @ 7500 rpm |
| Max Torque | 56 Nm / 42.3 lb-ft @ 7000 rpm |
| Clutch | Wet multi-disc |
| Transmission | 5 Speed |
| Final Drive | Chain |
| Frame | Double tubular steel cradle |
| Front Suspension | Telescopic hydraulic forks |
| Rear Suspension | Dual shocks, swing arm |
| Front Brakes | Single 296mm disc |
| Rear Brakes | 180mm Drum |
| Front Tyre | 3.25-19 |
| Rear Tyre | 4.00-18 |
| Wheelbase | 1400 mm / 55 in |
| Dry Weight | 174 kg / 384 lbs |
| Wet Weight | 188 kg / 414 lbs |
| Fuel Capacity | 15 Litres / 4.0 US gal |
| Standing 1/4 Mile | 12.4 sec |
| Top Speed | 200 km/h / 124 mph |
| Road Test | Kawasaki HI vs Triumph X-75 Bike magazine 1974 |
