What category is the 1984 Yamaha XJ 650?

The 1984 Yamaha XJ 650 has a Category of Naked bike.

What is the engine size of the 1984 Yamaha XJ 650?

The 1984 Yamaha XJ 650 has a Capacity: of 653.00 ccm (39.85 cubic inches).

What type of engine does the 1984 Yamaha XJ 650 have?

The 1984 Yamaha XJ 650 has a Engine type of In-line four.

What is the engine power of the 1984 Yamaha XJ 650?

The 1984 Yamaha XJ 650 has a Power of 71.00.

Is the 1984 Yamaha XJ 650 air cooled or liquid cooled?

The 1984 Yamaha XJ 650 has a Cooling system of Air.

How many gears does the 1984 Yamaha XJ 650 have?

The 1984 Yamaha XJ 650 has a Gearbox of 5-speed.

How much does the 1984 Yamaha XJ 650 weigh?

The 1984 Yamaha XJ 650 has a Weight incl. oil, gas, etc of 231.0 kg (509.3 pounds).

What is the top speed of the 1984 Yamaha XJ 650?

The 1984 Yamaha XJ 650 has a Top speed of 197.0 km/h (122.4 mph).

Yamaha XJ 650 - 1984 Specifications and Reviews

Name: 1984 Yamaha XJ 650
Brand: Yamaha

The 1984 Yamaha XJ 650 is a lightweight naked bike powered by a reliable 653cc inline-four engine producing 71 horsepower. Ideal for middleweight riders seeking manageable performance and everyday practicality, it's best known for its approachable handling, fuel efficiency, and durable shaft-drive construction that defined Yamaha's accessible sportbike philosophy of the era.

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1984

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General information
Category	Naked bike
Year	1984
Model	Yamaha XJ 650

Engine and Transmission Specifications
Transmission typefinal drive	Shaft drive (cardan)
Gearbox	5-speed
Cooling system	Air
Fuel control	DOHC
Valves per cylinder	2
Bore x stroke	63.0 x 52.4 mm (2.5 x 2.1 inches)
Compression	9.2:1
Power	71.00
Stroke	4
Engine type	In-line four
Capacity:	653.00 ccm (39.85 cubic inches)
Physical measures and capacities
Weight incl. oil, gas, etc	231.0 kg (509.3 pounds)

Yamaha XJ 650 dimensions and frame
Rear brakes	Expanding brake
Front brakes	Dual disc
Rear tyre dimensions	120/90-18
Front tyre dimensions	3.25-19
Speed and acceleration
Top speed	197.0 km/h (122.4 mph)
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay
Fuel capacity	20.50 litres (5.42 gallons)

Performance Profile & Rider Fit

71 hp

Peak Power

4.8s

0-60 mph

122.4 mph

Top Speed

Best For

Track35%

City58%

Cornering55%

Daily Riding65%

Touring62%

Passenger60%

Rider Profile

Best For	A confident beginner or returning rider will feel at home, as the XJ 650 is forgiving but rewards smooth, deliberate inputs.
Purpose	This bike suits riders who want a classic, versatile naked machine for commuting, weekend rides, and light touring rather than outright performance.
Rider Fit	At 231 kg with a moderate seat height typical of early-80s UJMs, it's manageable for average-height riders but noticeable at low speeds or when maneuvering by hand.
Character	The air-cooled inline-four and shaft drive give it a smooth, mechanical charm with steady, unhurried power delivery rather than aggressive thrills.
Not Ideal For	It's not the right choice for riders seeking modern sportbike agility, off-road capability, or class-leading acceleration.

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