Across the 1984, 1985 and 1995 model years, the Yamaha XJ 900 S motorcycle has supplied wet/running weights ranging from 537.9 lb (244 kg) and dry weights ranging from 526.9 lb (239 kg), depending on model year.
Yamaha XJ 900 S weight overview
At this weight, footing and parking technique matter. Once moving, geometry and balance can disguise the mass, but you still have to manage the full weight at walking speed.
Heavy Motorcycle
How heavy is the Yamaha XJ 900 S?
wet weight
Using a model-level wet weight comparison, the Yamaha XJ 900 S is heavier than about 67.9% of 42 Yamaha sport-touring motorcycles with compatible weight data.
Dry vs ready-to-ride weight
Bike + rider total weight
These totals use the model’s representative wet weight. They exclude riding gear, luggage and a passenger.
Yamaha XJ 900 S weight & related specs
| Model years covered | 1984, 1985, 1995 |
|---|---|
| Wet / running weight | 537.9 lb (244 kg) |
| Dry weight | 526.9 lb (239 kg) |
| Engine displacement | 853 cc to 892 cc |
| Power | 89 hp |
| Torque | 57.2 lb-ft (77.5 Nm) |
| Fuel capacity | 5.81 US gal (22 L) |
| Full-tank fuel weight (estimated) | 36.1 lb (16.4 kg) |
Weight changes by model year
Useful weight calculations
| Horsepower per 100 lb | 16.89 hp / 100 lb |
|---|---|
| Pounds per horsepower | 5.92 lb / hp |
| Torque per 100 lb | 10.85 lb-ft / 100 lb |
| Displacement per pound | 1.59 cc / lb to 1.69 cc / lb |
| Weight per 100 cc | 59.1 lb / 100 cc to 63.1 lb / 100 cc |
| Fuel weight as % of bike weight | 6.7% |
What the weight numbers tell you
Yamaha XJ 900 S weight FAQ
What is the Yamaha XJ 900 S dry and wet weight?
Across the covered 1984, 1985, 1995 years, listed wet/running weight is 537.9 lb (244 kg) and listed dry weight is 526.9 lb (239 kg). Check the year-change section because the exact figure can vary by model year.
Is the Yamaha XJ 900 S lighter or heavier than other Yamaha sport-touring motorcycles?
Compared with similar Yamahas in this dataset, it is heavier than about 67.9% of 42 sport-touring motorcycles using the same weight basis.
Which Yamaha XJ 900 S years have different weight specs?
No clear weight change appears in the usable model-year data. Other specifications may still differ by year.
How much does a full tank add to the Yamaha XJ 900 S?
Based on the supplied 5.81 US gal (22 L) tank capacity, the gasoline itself weighs about 36.1 lb (16.4 kg) when full. This helps explain part of the difference between dry and ready-to-ride mass.
What is the combined Yamaha XJ 900 S and rider weight?
Using the model’s representative wet/running weight and a 180 lb rider, the combined bike-and-rider mass is about 717.9 lb (325.6 kg) before riding gear, luggage or a passenger.
What is the Yamaha XJ 900 S power-to-weight ratio?
Available model-year data produces 16.89 hp per 100 lb. It shows engine output relative to motorcycle mass rather than just quoting peak horsepower. That places it around the 44th percentile within the compatible Yamaha sport touring power-to-weight comparison.
How much torque does the Yamaha XJ 900 S have per 100 lb?
Where compatible torque and weight figures are available, the model works out to 10.85 lb-ft per 100 lb. This gives more context than torque alone because it relates engine twist to the mass it has to move.
What is the Yamaha XJ 900 S displacement per pound?
The available figures work out to 1.59 cc per lb to 1.69 cc per lb. This is not a performance rating, but it is a useful way to compare engine size against total motorcycle mass.
How much does Yamaha XJ 900 S weight vary by year?
Among years with usable comparable figures, 1995 is the lightest at 526.9 lb (239 kg), while 1984-1985 is the heaviest at 537.9 lb (244 kg).
Motorcycle specifications can vary by model year, market, equipment and the exact dry/curb-weight definition. Calculated fuel-weight and ratio figures on this page are estimates derived from the supplied specifications. Confirm critical figures in the owner’s manual or on the official Yamaha Motorsports website.