Across the 1975, 1976 and 1977 model years, the Yamaha DT 400 motorcycle has supplied wet/running weights ranging from 310.9 lb (141 kg) and dry weights ranging from 272.1 lb (123.4 kg), depending on model year.
Yamaha DT 400 weight overview
This is on the lighter side for a road motorcycle. The advantage is usually most obvious while parking, maneuvering at walking speed and moving the bike around off the engine.
Light Motorcycle
How heavy is the Yamaha DT 400?
wet weight
Using a model-level wet weight comparison, the Yamaha DT 400 is heavier than about 70.6% of 68 Yamaha enduro/off-road 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 DT 400 weight & related specs
| Model years covered | 1975, 1976, 1977 |
|---|---|
| Wet / running weight | 310.9 lb (141 kg) |
| Dry weight | 272.1 lb (123.4 kg) |
| Engine displacement | 397 cc |
| Power | 21 hp |
| Torque | 27.5 lb-ft (37.3 Nm) |
| Fuel capacity | 2.38 US gal (9 L) |
| Full-tank fuel weight (estimated) | 14.8 lb (6.7 kg) |
Weight changes by model year
Useful weight calculations
| Horsepower per 100 lb | 6.76 hp / 100 lb |
|---|---|
| Pounds per horsepower | 14.8 lb / hp |
| Torque per 100 lb | 10.11 lb-ft / 100 lb |
| Displacement per pound | 1.28 cc / lb to 1.46 cc / lb |
| Weight per 100 cc | 68.5 lb / 100 cc to 78.3 lb / 100 cc |
| Fuel weight as % of bike weight | 4.8% to 5.4% |
| Weight with full tank | 286.8 lb (130.1 kg) |
What the weight numbers tell you
Yamaha DT 400 weight FAQ
How much does the Yamaha DT 400 weigh?
For the model years covered here, wet/running weight is 310.9 lb (141 kg), while dry weight is 272.1 lb (123.4 kg). Do not treat dry and wet figures as interchangeable.
How does the Yamaha DT 400 weight compare with similar Yamahas?
It is on the heavier side. Its representative wet weight is around the 71st percentile among 68 compatible Yamaha enduro/off-road motorcycles.
Are all Yamaha DT 400 model years the same weight?
The supplied comparable weight values do not show a meaningful change across the 1975-1977 years covered here.
What does a full tank of gas weigh on the Yamaha DT 400?
A full tank works out to about 14.8 lb (6.7 kg) from the listed 2.38 US gal (9 L) capacity. Actual fuel density varies slightly, so treat it as a practical estimate.
What does the Yamaha DT 400 weigh with a 180 lb rider?
The approximate combined total is 490.9 lb (222.6 kg) with a 180 lb rider, based on the representative wet/running weight used on this page.
Is the Yamaha DT 400 strong for its weight?
The calculated range is 6.76 hp per 100 lb. This ratio is usually more informative for acceleration comparisons than horsepower alone. That places it around the 40th percentile within the compatible Yamaha enduro / offroad power-to-weight comparison.
What is the Yamaha DT 400 torque per 100 lb of bike weight?
Available data gives 10.11 lb-ft per 100 lb. That ratio helps explain how strong the engine is relative to the bike’s mass, especially at lower speeds.
How many cc does the Yamaha DT 400 have per pound?
The model has about 1.28 cc per lb to 1.46 cc per lb in the available data. This simply shows how much engine displacement there is for each pound of motorcycle weight.
How does the Yamaha DT 400 compare with the median Yamaha enduro/off-road motorcycle weight?
The representative wet weight is about 37.5 lb (17 kg) heavier than the median Yamaha enduro/off-road motorcycle weight of 273.4 lb (124 kg) in this dataset.
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.