For the 1974 model year, the Kawasaki 400 S 3 Mach II motorcycle has a listed wet/running weight of 383.6 lb (174 kg).
Kawasaki 400 S 3 Mach II 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 Kawasaki 400 S 3 Mach II?
wet weight
Using a model-level wet weight comparison, the Kawasaki 400 S 3 Mach II is lighter than about 84.9% of 86 Kawasaki sport 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.
Kawasaki 400 S 3 Mach II weight & related specs
| Model years covered | 1974 |
|---|---|
| Wet / running weight | 383.6 lb (174 kg) |
| Engine displacement | 400 cc |
| Power | 40 hp |
| Fuel capacity | 3.7 US gal (14 L) |
| Full-tank fuel weight (estimated) | 23 lb (10.4 kg) |
Useful weight calculations
| Horsepower per 100 lb | 10.43 hp / 100 lb |
|---|---|
| Pounds per horsepower | 9.59 lb / hp |
| Displacement per pound | 1.04 cc / lb |
| Weight per 100 cc | 95.9 lb / 100 cc |
| Fuel weight as % of bike weight | 6% |
What the weight numbers tell you
Kawasaki 400 S 3 Mach II weight FAQ
What is the Kawasaki 400 S 3 Mach II wet weight?
The supplied wet/running weight is 383.6 lb (174 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 Kawasaki 400 S 3 Mach II lighter or heavier than other Kawasaki sport bikes?
It is comparatively light for this Kawasaki category. The model lands near the 15th percentile for weight in the compatible dataset.
How much does a full tank add to the Kawasaki 400 S 3 Mach II?
Based on the supplied 3.7 US gal (14 L) tank capacity, the gasoline itself weighs about 23 lb (10.4 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 Kawasaki 400 S 3 Mach II and rider weight?
Using the model’s representative wet/running weight and a 180 lb rider, the combined bike-and-rider mass is about 563.6 lb (255.6 kg) before riding gear, luggage or a passenger.
What is the Kawasaki 400 S 3 Mach II power-to-weight ratio?
Available model-year data produces 10.43 hp per 100 lb. It shows engine output relative to motorcycle mass rather than just quoting peak horsepower. That places it around the 20th percentile within the compatible Kawasaki sport power-to-weight comparison.
How large is the Kawasaki 400 S 3 Mach II engine for its weight?
The available figures work out to 1.04 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 Kawasaki 400 S 3 Mach II above or below the typical Kawasaki sport bike weight?
Compared with the median Kawasaki sport bike weight of 455.8 lb (206.8 kg), the model is roughly 72.2 lb (32.8 kg) lighter.
Where will I notice the Kawasaki 400 S 3 Mach II 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 Kawasaki website.