Yamaha XJ 900 F - 1985 Specifications and Reviews

The 1985 Yamaha XJ 900 F is a capable middleweight enduro designed for adventure-seeking riders who value practicality and reliability. Known for its robust air-cooled inline-four engine delivering 98 horsepower and shaft-drive transmission, this machine excels in mixed terrain riding. Its 242kg weight and composed handling make it an accessible choice for riders transitioning to larger displacement bikes.

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General information

CategoryEnduro / offroad
Year1985
ModelYamaha XJ 900 F
 
 

Engine and Transmission Specifications

Transmission typefinal driveShaft drive (cardan)
Gearbox5-speed
Cooling systemAir
Fuel controlDOHC
Valves per cylinder2
Bore x stroke68.5 x 60.5 mm (2.7 x 2.4 inches)
Compression9.6:1
Power98.00
Stroke4
Engine typeIn-line four
Capacity:891.00 ccm (54.37 cubic inches)

Physical measures and capacities

Weight incl. oil, gas, etc242.0 kg (533.5 pounds)

Yamaha XJ 900 F dimensions and frame

Rear brakesSingle disc
Front brakesDual disc
Rear tyre dimensions120/90-18
Front tyre dimensions100/90-18
 
 

Speed and acceleration

Top speed221.0 km/h (137.3 mph)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Fuel capacity22.00 litres (5.81 gallons)

Performance Profile & Rider Fit

92 hp
Peak Power
3.8s
0-60 mph

Best For

Track45%
City55%
Cornering60%
Daily Riding75%
Touring85%
Passenger75%

Rider Profile

Best ForSuits riders with at least some prior experience who want a torquey, substantial machine rather than a first-time learner bike.
PurposeBuilt as a sport-touring all-rounder, equally happy eating up motorway miles as handling weekend backroad rides.
Rider FitAt 218 kg dry with a 790 mm seat height, it demands a reasonably confident, moderately strong rider especially at low speed or when fully loaded.
CharacterA classic UJM-style in-line four with a broad torque spread, delivering smooth, predictable power and a relaxed, unintimidating character.
Not Ideal ForNot a good fit for off-road adventures or for riders seeking a lightweight, flickable machine for tight city commuting.

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

Rider Reviews

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