HONDA CB750 Four KZ (1977-1978) Specs, Performance & Photos

In 1978, after the F2 launch, the Japanese motorcycle manufacturer decided that was hope for further development of the CB750 in touring terms and built the CB750 Four KZ, which was a K7 that retained the original layout of four separate exhaust pipes with restyled mufflers.

The fuel tank remained unchanged but with a new look from the different paintwork and lining, while the only positive change brought upon the CB750 KZ was the position of the ignition switch and choke controls in front of the steering head.

Other two subtle alterations included the repositioning of the front indicator lights and the removal of the fork shrouds, which helped convince potential customers of Honda's ongoing research and development while boosting the sales of the bike.

For suspension, the bike packed a telescopic fork on the front and a swingarm with two shock absorbers mounted on each side of the bike, which provided optimum suspension performance.

As for braking power, the model featured a 275 mm disc squeezed by a hydraulic caliper on the front wheel and a 180 mm drum braking unit on the rear wheel that offered optimum braking performance.

In the horsepower department, the 1978 Honda CB750 Four KZ took its muscles from a 748cc four-stroke four-cylinder air-cooled engine fueled by four Keihin carburetors and delivered an output power of 77 hp with maximum strength at 9,000 rpm and 65 Nm (48 lb-ft) of torque available at 7,000 rpm.

The power generated by the engine was converted into motion by a six-speed manual transmission that spun the rear wheel through a chain drive to a top speed of 200 kph (125 mph).