| MODEL | YAMAHA XS 650 1976 |
| Year | 1976 |
| Engine Type | Four-stroke, parallel twin, SOHC, 2 valves per cylinder |
| Displacement / Capacity | 653 cc / 39.8 cu in |
| Bore X Stroke | 75 x 74 mm |
| Compression Ratio | 8.4:1 |
| Cooling System | Air cooled |
| Max Power | 39.5 kW / 53 hp @ 7200 rpm |
| Max Torque | 54 Nm / 5.5 kgf-m / 39.8 lb-ft @ 6800 rpm |
| Ignition | Battery, induction coil |
| Induction | 2 x Mikuni BS38 carburetors |
| Start System | Electric and kick |
| TRANSMISSION SPECS | |
| Lubrication | Wet sump |
| Gear Box | 5-speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | Telescopic forks |
| Rear Suspension | Dual shock absorbers |
| Front Brakes | Single disc |
| Rear Brakes | Drum |
| DIMENSION SPECS | |
| Overall Length | 2179 mm / 85.8 in |
| Overall Width | 899 mm / 35.4 in |
| Overall Height | 1161 mm / 45.7 in |
| Seat Height | — |
| Wheelbase | 1435 mm / 56.5 in |
| Ground Clearance | 150 mm / 5.5 in |
| Dry Weight | 191 kg / 420 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 3.50H-19 4PR |
| Rear Tyre | 4.00H-18 4PR |
| FUEL SYSTEM | |
| Fuel Capacity | 15 Litres / 4.0 US gal |
| Fuel Consumption | 5.0 L/100 km / 20 km/l / 47 US mpg |
| Top Speed | 185 km/h / 115 mph |
The 1976 XS650C was a refinement year: the front caliper moved behind the right fork leg, the exhaust and instruments were revised and the carburettors shared one throttle cable. Engine was unchanged and vibration was reduced compared with earlier versions.
