| MODEL | HONDA CB 750 A HONDAMATIC 1977 |
| Year | 1977 |
| Engine Type | Four stroke, transverse four cylinder, SOHC, 2 valves per cylinder |
| Displacement / Capacity | 736 cc / 44.9 cu in |
| Bore X Stroke | 61 x 63 mm / 2.40 x 2.48 in |
| Compression Ratio | 7.7:1 |
| Cooling System | Air cooled |
| Max Power | 35 kW / 47 PS / 46 hp @ 7500 rpm |
| Max Torque | 49 Nm / 5.0 kgf-m / 36 lb-ft @ 6000 rpm |
| Ignition | Battery, induction coil |
| Induction | 4 x 24 mm Keihin carburettors |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | Wet sump |
| Gear Box | 2 Speed automatic with torque converter, foot-selected |
| Clutch | None (torque converter) |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Steel tubular |
| Front Suspension | Telescopic forks |
| Rear Suspension | Swingarm, dual shocks |
| Front Brakes | Single 296 mm disc |
| Rear Brakes | 180 mm drum |
| DIMENSION SPECS | |
| Overall Length | 2260 mm / 89.0 in |
| Overall Width | 800 mm / 31.5 in |
| Overall Height | — |
| Seat Height | 840 mm / 33.0 in |
| Wheelbase | 1480 mm / 58.3 in |
| Ground Clearance | — |
| Dry Weight | 245 kg / 540 lbs |
| Wet Weight | 259 kg / 572 lbs |
| WHEEL SPECS | |
| Front Tyre | 3.50-19 |
| Rear Tyre | 4.50-17 |
| FUEL SYSTEM | |
| Fuel Capacity | 18 Litres / 4.8 US gal |
| Fuel Consumption | 15.6 km/l |
| Top Speed | 158 km/h / 98 mph |
Photo: Doc.Heintz, CC BY-SA 4.0, via Wikimedia Commons
Photo: Cjp24, CC BY-SA 4.0, via Wikimedia Commons
The 1977 CB750A1 carried on the automatic formula with minor colour and detail changes, and was also sold in Japan as the EARA. It remained a heavy, relaxed cruiser with no tachometer, its speedometer marked with the top speed for each of its two ratios.
