Categories: Yamaha

Yamaha XJ650 Maxim (1982)

The Yamaha XJ 650 Maxim is a four-stroke, transverse four-cylinder, DOHC motorcycle with two valves per cylinder and a 653cc capacity. It has a compression ratio of 9.2:1 and uses 4x 32mm Hitachi carburetors for induction. The bike is capable of producing a maximum power output of 71 hp and 57 Nm of torque. It has a wet multiplate clutch with a seven steel and eight friction plate design, and a five-speed transmission with shaft final drive. The frame is made of tubular steel and has a dual cradle design. The front suspension is 26mm air-assisted telescopic forks with 142mm of travel. The rear suspension has duel Kayaba shocks, five-way adjustable spring preload, and 97mm of travel. The front brakes consist of a single 300mm disc and the rear brakes are a drum design. It has a seat height of 744mm and a dry weight of 203kg. The motorcycle has a fuel capacity of 13 litres and has an average fuel consumption of 47 mpg. The standing 1/4 mile for the Yamaha XJ 650 Maxim is 12.6 seconds, and it has a top speed of 120 mph.


Technical specifications:

Make Model: Yamaha XJ 650 Maxim

Year: 1982

Engine: Four stroke, transverse four cylinder, DOHC, 2 valves per cylinder,

Capacity: 653 cc / 39.8 cu-in



Bore x Stroke: 63 52.4 mm

Cooling System: Air-cooled

Compression Ratio: 9.2:1

Induction: 4x 32mm Hitachi carburetors

Ignition: Transistorized

Starting: Electric

Max Power: 71 hp / 51.8 kW @ 9400 rpm

Max Torque: 57 Nm / 42 lb-ft @ 7500 rpm

Clutch: Wet Multiplate; 7 Steel 8 Friction

Transmission: 5 Speed

Final Drive: Shaft

Gear Ratio: 1st 2.187 (35/16) 2nd 1.500 (30/20) 3rd 1.153 (30/26) 4th 0.933 (28/30) 5th 0.812 (26/32)

Frame: Tubular steel dual cradle frame


Front Suspension: 26mm Air assisted telescopic forks

Front Wheel Travel: 142 mm / 5.5 in

Rear Suspension: Duel Kayaba shocks, 5-way adjustable spring preload

Rear Wheel Travel: 97 mm / 3.8 in

Front Brakes: Single 300mm disc

Rear Brakes: Drum

Front Tyre: 3.25 H19

Rear Tyre: 130/90 H16

Seat Height: 744 mm / 29.3 in

Dry Weight: 203 kg / 450 lbs


Fuel Capacity: 13 Litres / 3.4 US gal

Consumption Average: 47 mpg

Standing 1/4 Mile: 12.6 sec / 107 mph

Top Speed: 120 mph
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