May 6, 2018

H2 Mach IV 750

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Th famous Kawasaki H2 750 two stroke triple What a machine

 

The H-2 was comparison tested by Cycle magazine in 1973 against the Ducati 750, the Honda CB750, the Harley-Davidson Sportster 1000, the Kawasaki Z1, the Triumph Trident 750, and the Norton Commando 750. The competition consisted of acceleration, braking distance, and road race course lap-times. Each test was run several times including 10 attempts at a fastest road course time. The H2 was the fastest accelerating machine, posting the fastest 1/4 mile run on a drag strip. Experts were surprised at the other results. Despite an uncomfortable feel and slight front wheel hop under hard braking and not giving the sensation of stopping particularly fast it had the shortest stopping distance and highest braking G load of all the bikes. On the road course, despite what had been heard and written about its ill handling, frame flexing and the supposed tendency to speed wobble exiting high speed turns, it was tied for the fastest lap time with the Kawasaki Z-1 to the tenth of a second. Overall the Kawasaki H-2 750 had the lowest ET, second-highest quarter-mile speed, the fastest lap time, the strongest braking force, the highest torque and horsepower readings on the dynamometer, the highest power-to-weight ratio, the lowest price and scored by points for performance was by far the least expensive per unit displacement[1]

In 1975 Cycle World tested the H2 Mach IV's quarter mile at 13.06 seconds 99.55 mph (160.21 km/h), with a 0 to 60 mph time of 4.3 seconds, 0 to 100 mph time of 13.2 seconds, and a top speed of 110 mph (180 km/h).[2]

 

The 750 has pride of place along side the Z1 in the Kawasaki Museum, as it surely should.

 

  • Engine: Air-cooled, two-stroke, transverse three-cylinder,

  • Engine capacity: 748 cc (45.65 cubic inches)

  • Bore x Stroke: 71 x 63 mm

  • Compression Ratio: 7.3:1

  • Induction: 3x 30 mm Mikuni carbs

  • Starting and ignition: Kick start battery and coil

  • Max Power: 74 hp (55 kW) @ 6800 rpm

  • Max Torque: 7.9 kg-m @ 6500 rpm

  • Transmission: 5-speed, chain drive.

  • Frame: Double tubular steel cradle

  • Front: Suspension: Telescopic hydraulic forks

  • Rear Suspension: Dual shocks, Swing arm

  • Brakes: Single disc (front) Drum brake (rear)

  • Dry-Weight 205 kg (423 pounds)

  • Fuel Capacity: 17 liters (4.49 gallons)

(1) Cycle Magazine 1973, Superbikes 1973

(2) "Cycle World Test: Kawasaki Mach IV H2 750; Evil, Wicked, Mean and Nasty", Cycle World, Newport Beach, California: Hachette Filipacchi Media U.S., pp. 44–49, March 1975, ISSN 0011-4286

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