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Yamaha Specifications

Yamaha XJ900 (1983-84)

Entry updated

At a glance

Capacity
853 cc / 52 cu-in
Power
97 hp / 70.8 Nm @ 9000 rpm
Torque
80.2 Nm / 59.3 lb-ft @ 5000 rpm
Seat height
780mm / 30.7 in

The full picture.

The Yamaha XJ900R Seca was first introduced in 1983 and was produced until 1984. It features a four-stroke, transverse four-cylinder DOHC engine, with a capacity of 853 cc and a compression ratio of 9.2:1. It has four 35mm Mikuni carburetors, CDI ignition, and an electric starter. The motorcycle has a maximum power output of 97 horsepower and a maximum torque of 80.2 Nm at 5000 rpm. The clutch is wet and has five springs, while the transmission is a five-speed manual. The final drive is a shaft.

The Yamaha XJ900R Seca has a steel tubular frame, with air-assisted telescopic forks at the front and twin strut gas-assisted, five spring preload, and 12 damping adjustable rear suspension. The front brakes are dual 254mm discs, and the rear brake is a single 254mm disc. The motorcycle has a 27-degree rake and a 120mm trail. It measures 2260mm in length, with a wheelbase of 1480mm and a seat height of 780mm.

The Yamaha XJ900R Seca has a wet weight of 244 kg and a fuel capacity of 22 liters. It can reach a top speed of 213km/h and do a standing quarter-mile in 11.8 seconds, reaching a speed of 112.3 mph. The motorcycle has a unique classic design that still captures the imagination of riders today.


Technical specifications:

Make Model: Yamaha XJ 900R Seca

Motorcycle technical specifications
Year1983 – 84
EngineFour stroke, transverse four cylinder, DOHC, 2 valves per cylinder.
Capacity853 cc / 52 cu-in
Bore x Stroke67 60.5 mm
Cooling SystemAir cooled
Compression Ratio9.2:1
Induction4x 35mm Mikuni carburetor
IgnitionCDI
StartingElectric
Max Power97 hp / 70.8 Nm @ 9000 rpm
Max Torque80.2 Nm / 59.3 lb-ft @ 5000 rpm
ClutchWet, 5 springs
Transmission5 Speed
Final DriveShaft
FrameSteel tubular
Front SuspensionAir assisted telescopic forks,
Rear SuspensionTwin strut gas assisted, 5 spring preload and 12 damping adjustable,
Front Brakes2x 254mm discs
Rear BrakesSingle 254mm disc
Front Tyre100/90-18
Rear Tyre120/90-18
Rake27 degrees
Trial120 mm / 4.5 in
Length2260 mm / 88.9 in
Wheelbase1480 mm / 58.2 in
Seat Height780mm / 30.7 in
Ground clearance145mm / 5.7 in
Wet Weight244 kg / 537.9 lbs
Fuel Capacity22 Litres / 5.8 US gal
Standing 1/4 Mile11.8 sec / 112.3 mph
Top Speed213 km/h / 132.5 mph