What category is the 1981 Suzuki GS 650 G Katana?

The 1981 Suzuki GS 650 G Katana has a Category of Sport.

What is the engine size of the 1981 Suzuki GS 650 G Katana?

The 1981 Suzuki GS 650 G Katana has a Capacity: of 674.00 ccm (41.13 cubic inches).

What type of engine does the 1981 Suzuki GS 650 G Katana have?

The 1981 Suzuki GS 650 G Katana has a Engine type of In-line four, four-stroke.

What is the engine power of the 1981 Suzuki GS 650 G Katana?

The 1981 Suzuki GS 650 G Katana has a Power of 73.00.

What is the top speed of the 1981 Suzuki GS 650 G Katana?

The 1981 Suzuki GS 650 G Katana has a Top speed of 197.0 km/h (122.4 mph).

Is the 1981 Suzuki GS 650 G Katana air cooled or liquid cooled?

The 1981 Suzuki GS 650 G Katana has a Cooling system of Air.

How many gears does the 1981 Suzuki GS 650 G Katana have?

The 1981 Suzuki GS 650 G Katana has a Gearbox of 5-speed.

How much does the 1981 Suzuki GS 650 G Katana weigh?

The 1981 Suzuki GS 650 G Katana has a Weight incl. oil, gas, etc of 239.0 kg (526.9 pounds).

Suzuki GS 650 G Katana - 1981 Specifications and Reviews

Name: 1981 Suzuki GS 650 G Katana
Brand: Suzuki
Rating: 4 (1 reviews)

The 1981 Suzuki GS 650 G Katana is a middleweight sport bike designed for riders seeking responsive performance and nimble handling. Its 674cc inline-four engine delivers 73 horsepower and reaches 197 km/h, providing genuine sportiness with practical everyday usability. The bike is best known for its distinctive angular Katana styling and accessible power delivery that appeals to experienced riders wanting sport-oriented excitement.

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General information
Category	Sport
Year	1981
Model	Suzuki GS 650 G Katana
Engine and Transmission Specifications
Transmission type,final drive	Shaft drive (cardan)
Gearbox	5-speed
Cooling system	Air
Fuel control	DOHC
Valves per cylinder	2
Bore x stroke	62.0 x 55.8 mm (2.4 x 2.2 inches)
Compression	9.4:1
Top speed	197.0 km/h (122.4 mph)
Power	73.00
Engine type	In-line four, four-stroke
Capacity:	674.00 ccm (41.13 cubic inches)

Brakes, suspension, Frame and wheels
Rear brakes	Single disc
Front brakes	Dual disc
Rear tyre dimensions	4.25-17
Front tyre dimensions	3.25-19
Physical measures and capacities
Fuel capacity	23.00 litres (6.08 gallons)
Weight incl. oil, gas, etc	239.0 kg (526.9 pounds)
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay

Performance Profile & Rider Fit

73 hp

Peak Power

4.8s

0-60 mph

122.4 mph

Top Speed

Best For

Track45%

City55%

Cornering55%

Daily Riding60%

Touring65%

Passenger60%

Rider Profile

Best For	This bike suits an intermediate to experienced rider comfortable with a heavier, shaft-driven 1980s four-cylinder that rewards smooth, deliberate inputs rather than aggressive flicking.
Purpose	It's best suited to spirited road riding and moderate-distance touring, blending Katana styling with air-cooled four-cylinder performance rather than outright track ambition.
Rider Fit	At around 239 kg with a fairly upright but sporty riding position, it demands a rider of reasonable strength and height to manage low-speed maneuvers and stops confidently.
Character	It has the character of a classic early-80s sport-standard: a torquey, air-cooled DOHC four delivering smooth, linear power with a distinctive shaft-drive feel and iconic angular Katana styling.
Not Ideal For	It's not ideal for riders seeking modern lightweight agility, off-road capability, or cutting-edge sport-bike cornering performance.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.