| Year | 1978 |
| Bore x Stroke | 68 х 68.6 mm |
| Braking 100 km/h - 0 | 42 m / 138 ft |
| Capacity | 747 cc / 45.6 cu-in |
| Clutch | Multi-plate, wet |
| Compression Ratio | 9.5:1 |
| Consumption Average | 5.5 L/100 km / 18.2 km/l / 42.9 US mpg |
| Cooling System | Air cooled |
| Dimensions | Length: 2169 mm / 85.0 in Width: 965 mm / 38.0 in Height: 1185 mm / 46.7 in |
| Engine | Four stroke, transverse three cylinder, DOHC, 2 valves per cylinder |
| Final Drive | Shaft |
| Front Wheel Travel | 175 mm / 6.9 in |
| Front Brakes | 2 x 267mm Discs |
| Front Suspension | Telescopic forks |
| Front Tyre | 3.25-19 |
| Fuel Capacity | 17 Litres / 4.5 US gal |
| Gear Ratio | 1st 14.63 / 2nd 9.48 / 3rd 7.76 / 4th 6.53 / 5th 5.71:1 |
| Ground Clearance | 147 mm / 5.8 in |
| Ignition | Magnetically-triggered transistorized |
| Induction | 3 x Mikuni BS34-II constant velocity carburetors |
| Manual | XS750 Service Manual 1976-1977 / 1976 XS750D - 1977 XS750-2D Parts Manual / 1977 XS750-2D Owners Manual / 1981 XS850H Parts Manual |
| Max Power | 54 kW / 74 hp @ 8400 rpm |
| Oil Capacity | 3.8 Litres / 4.0 US qts |
| Rake | 27° |
| Rear Wheel Travel | 80 mm / 3.15 in |
| Rear Brakes | Single 265mm disc |
| Rear Suspension | Dual shocks swing arm, preload adjustable |
| Rear Tyre | 4.00-18 |
| Reviews | Yamaha Magazine Articles |
| Road Test | Cycle Magazine 1978 |
| Seat Height | 823 mm / 32.4 in |
| Standing ¼ Mile | 12.94 sec / 165 km/h / 102.6 mph |
| Starting | Electric |
| Top Speed | 171 km/h 106 mph |
| Trail | 114 mm / 4.5 in |
| Transmission | 5 Speed |
| Wet Weight | 253 kg / 557 lbs |
| Wheelbase | 1470 mm / 57.9 in |
