Across 9 covered model years from 1982 to 1990, the Yamaha XS 400 DOHC motorcycle has a listed wet/running weight of 412.3 lb (187 kg).
Yamaha XS 400 DOHC weight overview
The bike falls into a normal middleweight range. At road speed the mass is usually less obvious; parking, slopes and walking-speed maneuvers are where you notice it most.
Middleweight Motorcycle
How heavy is the Yamaha XS 400 DOHC?
wet weight
Using a model-level wet weight comparison, the Yamaha XS 400 DOHC is lighter than about 56.5% of 69 Yamaha naked bikes with compatible weight data.
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 XS 400 DOHC weight & related specs
| Model years covered | 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990 |
|---|---|
| Wet / running weight | 412.3 lb (187 kg) |
| Engine displacement | 399 cc |
| Power | 45 hp |
| Fuel capacity | 4.76 US gal (18 L) |
| Full-tank fuel weight (estimated) | 29.6 lb (13.4 kg) |
Weight changes by model year
Useful weight calculations
| Horsepower per 100 lb | 10.92 hp / 100 lb |
|---|---|
| Pounds per horsepower | 9.16 lb / hp |
| Displacement per pound | 0.97 cc / lb |
| Weight per 100 cc | 103.3 lb / 100 cc |
| Fuel weight as % of bike weight | 7.2% |
What the weight numbers tell you
Yamaha XS 400 DOHC weight FAQ
What is the Yamaha XS 400 DOHC wet weight?
The supplied wet/running weight is 412.3 lb (187 kg) across the model years covered here. That figure is the most useful available number for real-world handling because operating fluids and fuel are included.
Is the Yamaha XS 400 DOHC lighter or heavier than other Yamaha naked bikes?
Weight is broadly typical for the category, landing around the 43rd percentile in this model-level Yamaha comparison.
Which Yamaha XS 400 DOHC 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 XS 400 DOHC?
Based on the supplied 4.76 US gal (18 L) tank capacity, the gasoline itself weighs about 29.6 lb (13.4 kg) when full. On models with a wet/running weight, that fuel mass is already included in the listed ready-to-ride figure.
What is the combined Yamaha XS 400 DOHC and rider weight?
Using the model’s representative wet/running weight and a 180 lb rider, the combined bike-and-rider mass is about 592.3 lb (268.6 kg) before riding gear, luggage or a passenger.
What is the Yamaha XS 400 DOHC power-to-weight ratio?
Available model-year data produces 10.92 hp per 100 lb. It shows engine output relative to motorcycle mass rather than just quoting peak horsepower. That places it around the 37th percentile within the compatible Yamaha naked bike power-to-weight comparison.
How large is the Yamaha XS 400 DOHC engine for its weight?
The available figures work out to 0.97 cc per lb. This is not a performance rating, but it is a useful way to compare engine size against total motorcycle mass.
Is the Yamaha XS 400 DOHC above or below the typical Yamaha naked bike weight?
Compared with the median Yamaha naked bike weight of 418.9 lb (190 kg), the model is roughly 6.6 lb (3 kg) lighter.
Where will I notice the Yamaha XS 400 DOHC weight most?
Expect the weight to matter more off the throttle than at speed: garage movement, uneven footing and parking angle are the practical situations to think about.
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.