Honda CB750 bike (1969)

The Honda CB750 Four K is a classic motorcycle from 1969 with a four stroke, transverse four cylinder, SOHC, 2 valve per cylinder engine and a capacity of 736cc. It has a compression ratio of 9.0:1 and is air cooled with 4 x 28mm Keihin carbs for induction. The ignition is powered by a battery and coils, and starting can be done electrically or via the kick. It can produce a maximum power of 50kW / 67hp at 8000rpm and maximum torque of 44lb-ft / 60Nm at 7000rpm. The transmission is 5-speed with a multi-plate, wet clutch and a chain final drive. The frame is a tubular steel duplex cradle with telescopic forks in the front suspension and a swingarm, dual shock suspension in the rear – preload adjustable. It has a single 296mm front brake disc and a 179mm rear brake drum with a front tyre size of 3.25-19 and a rear tyre size of 4.00-18. The Honda CB750 has a wheelbase of 1453mm / 57.2in and a seat height of 800mm / 31.5in. It has a wet weight of 226kg / 499lbs, a fuel capacity of 18.2L / 4.8 US gal and an oil capacity of 3.3L / 7 US pints. The average fuel consumption is 6.9 L/100 km / 14.6 km/l / 34.3 US mpg with a braking distance of 10m / 32.9ft at 48km/h / 30mph and 41m / 135.7ft at 97km/h / 60mph. It can reach a top speed of 198 km/h / 123.2 mph and has a standing 1/4 mile time of 13.5 sec / 100.9 mph. The Honda CB750 Four K manual can be found on Honda4fun.com or Cycle World.

Technical specifications:

Make Model: Honda CB 750 Four K

Year: 1969
Engine: Four stroke, transverse four cylinder, SOHC, 2 valve per cylinder.
Capacity: 736 cc / 44.9 cub in.
Bore x Stroke: 61 63 mm
Compression Ratio: 9.0:1
Cooling System: Air cooled
Lubrication: Dry sump
Induction: 4 x 28 mm Keihin carbs
Ignition: Battery, coils
Starting: Electric, kick
Max Power: 50 kW / 67 hp @ 8000 rpm
Max Torque: 44 lb-ft / 60 Nm @ 7000 rpm
Clutch: Multi-plate, wet
Transmission: 5 Speed
Final Drive: Chain
Gear Ratios: 1st 13.99 / 2nd 9.54 / 3rd 7.45 / 4th 6.14 / 5th 5.26:1
Frame: Tubular steal duplex cradle
Front Suspension: Telescopic forks non adjustable.
Rear Suspension: Swingarm, dual shocks, preload adjustable.
Front Brake: Single 296 mm disc
Rear Brake: 179 mm Drum
Front Tyre: 3.25-19
Rear Tyre: 4.00-18
Wheelbase: 1453 mm / 57.2 in.
Seat Height: 800 mm / 31.5 in.
Ground Clearance: 160 mm / 6.3 in.
Wet Weight: 226 kg / 499 lbs
Fuel Capacity: 18.2 L / 4.8 US gal
Oil Capacity: 3.3 L / 7 US pints
Consumption Average: 6.9 L/100 km / 14.6 km/l / 34.3 US mpg
Braking Distance 48 km/h / 30 mph – 0: 10 m / 32.9 ft
Braking Distance 97 km/h / 60 mph – 0: 41 m / 135.7 ft
Standing 1/4 Mile: 13.5 sec / 100.9 mph
Top Speed: 198 km/h / 123.2 mph
Manual: Honda4fun.com, Cycle World