What category is the 1991 Yamaha XJ 600 S Diversion (reduced Effect)?

The 1991 Yamaha XJ 600 S Diversion (reduced Effect) has a Category of Naked bike.

What is the engine size of the 1991 Yamaha XJ 600 S Diversion (reduced Effect)?

The 1991 Yamaha XJ 600 S Diversion (reduced Effect) has a Capacity: of 599.00 ccm (36.55 cubic inches).

What type of engine does the 1991 Yamaha XJ 600 S Diversion (reduced Effect) have?

The 1991 Yamaha XJ 600 S Diversion (reduced Effect) has a Engine type of In-line four.

What is the engine power of the 1991 Yamaha XJ 600 S Diversion (reduced Effect)?

The 1991 Yamaha XJ 600 S Diversion (reduced Effect) has a Power of 50.00.

Is the 1991 Yamaha XJ 600 S Diversion (reduced Effect) air cooled or liquid cooled?

The 1991 Yamaha XJ 600 S Diversion (reduced Effect) has a Cooling system of Air.

How many gears does the 1991 Yamaha XJ 600 S Diversion (reduced Effect) have?

The 1991 Yamaha XJ 600 S Diversion (reduced Effect) has a Gearbox of 6-speed.

How much does the 1991 Yamaha XJ 600 S Diversion (reduced Effect) weigh?

The 1991 Yamaha XJ 600 S Diversion (reduced Effect) has a Weight incl. oil, gas, etc of 208.0 kg (458.6 pounds).

What is the top speed of the 1991 Yamaha XJ 600 S Diversion (reduced Effect)?

The 1991 Yamaha XJ 600 S Diversion (reduced Effect) has a Top speed of 171.0 km/h (106.3 mph).

Yamaha XJ 600 S Diversion (reduced Effect) - 1991 Specifications and Reviews

Name: 1991 Yamaha XJ 600 S Diversion (reduced Effect)
Brand: Yamaha

The 1991 Yamaha XJ 600 S Diversion is a lightweight naked bike featuring a 599cc four-cylinder engine producing 50 horsepower, making it ideal for beginner and intermediate riders. Known for its manageable weight of 208kg and forgiving handling characteristics, this accessible middleweight excels as a practical commuter and entry-level sportbike.

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1992

1991

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General information
Category	Naked bike
Year	1991
Model	Yamaha XJ 600 S Diversion (reduced effect)

Engine and Transmission Specifications
Transmission typefinal drive	Chain
Gearbox	6-speed
Cooling system	Air
Fuel control	DOHC
Valves per cylinder	2
Bore x stroke	58.5 x 55.7 mm (2.3 x 2.2 inches)
Compression	10.0:1
Power	50.00
Stroke	4
Engine type	In-line four
Capacity:	599.00 ccm (36.55 cubic inches)
Physical measures and capacities
Weight incl. oil, gas, etc	208.0 kg (458.6 pounds)

Yamaha XJ 600 S Diversion (reduced Effect) dimensions and frame
Rear brakes	Single disc
Front brakes	Single disc
Rear tyre dimensions	130/70-18
Front tyre dimensions	110/80-17
Speed and acceleration
Top speed	171.0 km/h (106.3 mph)
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay
Fuel capacity	17.00 litres (4.49 gallons)

Performance Profile & Rider Fit

50 hp

Peak Power

5.8s

0-60 mph

106.3 mph

Top Speed

Best For

Track25%

City70%

Cornering55%

Daily Riding75%

Touring55%

Passenger55%

Rider Profile

Best For	This is a restricted/learner-friendly version of the XJ600S, well suited to newer riders building confidence on a mid-size naked bike.
Purpose	Designed as an approachable, versatile all-rounder for commuting and easy weekend rides rather than outright performance.
Rider Fit	A manageable curb weight and upright naked-bike ergonomics make it accessible to riders of average height and modest physical strength.
Character	A mild-mannered, air-cooled four-cylinder classic that favors smooth, predictable delivery over excitement or aggression.
Not Ideal For	Not suited for riders seeking strong acceleration, high top speed, or any off-road capability.

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