Across the 1971 and 1972 model years, the Yamaha AS 3 motorcycle has a listed wet/running weight of 231.5 lb (105 kg).
Yamaha AS 3 weight overview
Its low overall mass should be most noticeable off the throttle: moving it by hand, backing out of a parking space and managing stop-start riding should take less effort than on a heavy road bike.
Very Light Motorcycle
How heavy is the Yamaha AS 3?
wet weight
Using a model-level wet weight comparison, the Yamaha AS 3 is lighter than about 95.6% of 34 Yamaha classic motorcycles 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 AS 3 weight & related specs
| Model years covered | 1971, 1972 |
|---|---|
| Wet / running weight | 231.5 lb (105 kg) |
| Engine displacement | 125 cc |
| Power | 16 hp |
| 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 | 6.91 hp / 100 lb |
|---|---|
| Pounds per horsepower | 14.47 lb / hp |
| Displacement per pound | 0.54 cc / lb |
| Weight per 100 cc | 185.2 lb / 100 cc |
| Fuel weight as % of bike weight | 6.4% |
What the weight numbers tell you
Yamaha AS 3 weight FAQ
What is the Yamaha AS 3 wet weight?
The supplied wet/running weight is 231.5 lb (105 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 AS 3 lighter or heavier than other Yamaha classic motorcycles?
It is comparatively light for this Yamaha category. The model lands near the 4th percentile for weight in the compatible dataset.
Which Yamaha AS 3 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 AS 3?
Based on the supplied 2.38 US gal (9 L) tank capacity, the gasoline itself weighs about 14.8 lb (6.7 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 AS 3 and rider weight?
Using the model’s representative wet/running weight and a 180 lb rider, the combined bike-and-rider mass is about 411.5 lb (186.6 kg) before riding gear, luggage or a passenger.
What is the Yamaha AS 3 power-to-weight ratio?
Available model-year data produces 6.91 hp per 100 lb. It shows engine output relative to motorcycle mass rather than just quoting peak horsepower. That places it around the 27th percentile within the compatible Yamaha classic power-to-weight comparison.
How much of the Yamaha AS 3 total weight comes from fuel?
The calculated full-tank fuel mass is about 6.4% of the listed motorcycle weight. Because the available basis is wet/running weight, that fuel is already included in the ready-to-ride figure.
What is the Yamaha AS 3 engine-size-to-weight ratio?
The available figures work out to 0.54 cc per lb. This is not a performance rating, but it is a useful way to compare engine size against total motorcycle mass.
How far is the Yamaha AS 3 from the median Yamaha classic motorcycle weight?
Compared with the median Yamaha classic motorcycle weight of 375.9 lb (170.5 kg), the model is roughly 144.4 lb (65.5 kg) lighter.
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.