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Yamaha Specifications

Yamaha xs650 (1977)

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Yamaha xs650 (1977)

At a glance

Capacity
653 cc / 39.8 cu in
Power
39.5 kW / 53 hp @ 7200 rpm
Torque
54 Nm / 5.5 kgf-m / 39.8 lb-ft @ 6800 rpm
Seat height
810 mm / 31.9″

The full picture.

The 1977 Yamaha XS 650D is a vintage motorcycle with a four-stroke, parallel twin-cylinder engine. It has a capacity of 653 cc and a compression ratio of 8.4:1. The cooling system is air-cooled, while lubrication is through a wet sump. Induction is via two Mikuni BS38 carburetors while the ignition is powered by a battery and induction coil. It has both electric and kickstarting options. The bike has a maximum power output of 39.5 kW at 7200 rpm and torque of 54 Nm at 6800 rpm. It is equipped with a 5-speed transmission and a chain final drive. The suspension comprises of telescopic forks at the front and dual shock absorbers at the rear. It has twin hydraulic discs at the front and drum brakes at the rear, with a front tyre size of 3.50H-19 4PR and a rear tyre size of 4.00H-18 4PR. The bike has a length of 2175 mm, width of 780 mm, and height of 1090 mm with a wheelbase of 1435 mm. The seat height is 810 mm and ground clearance is 150 mm. It weighs 217 kg when wet and its fuel capacity is 15 litres with an average consumption of 5.0 L/100 km. The oil capacity is 2.5 litres while the top speed of the Yamaha XS 650D motorcycle is 185 km/h.


Technical specifications:

Make Model: Yamaha XS 650 / XS 650D

Motorcycle technical specifications
Year1977
EngineFour stroke, parallel twin cylinder, SOHC, 2 valves per cylinder.
Capacity653 cc / 39.8 cu in
Bore x Stroke75 x 74 mm
Compression Ratio8.4:1
Cooling SystemAir cooled
LubricationWet sump
Induction2 x Mikuni BS38 carburetors
IgnitionBattery, induction coil
StartingElectric and kick
Max Power39.5 kW / 53 hp @ 7200 rpm
Max Torque54 Nm / 5.5 kgf-m / 39.8 lb-ft @ 6800 rpm
Transmission5 Speed
Final DriveChain
Front SuspensionTelescopic forks
Rear SuspensionDual shock absorbers
Front BrakesTwin hydraulic discs, 267 mm
Rear BrakesDrum
Front Tyre3.50H-19 4PR
Rear Tyre4.00H-18 4PR
DimensionsLength: 2175 mm / 85.6″Width: 780 mm / 30.7″Height: 1090 mm / 42.9″
Wheelbase1435 mm / 56.5″
Ground Clearance150 mm / 5.5″
Seat Height810 mm / 31.9″
Dry Weight191 kg / 420 lbs
Wet Weight217 kg / 478 lbs
Fuel Capacity15 Litres / 4.0 US gal
Average Consumption5.0 L/100 km / 20 km/l / 47 US mpg
Oil Capacity2.5 Litres / 2.6 US qts
Top Speed185 km/h / 115 mph