For the 1987 model year, the Yamaha YZ490 motorcycle has a listed dry weight of 235.9 lb (107 kg).
Yamaha YZ490 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. The comparison uses dry weight because a usable wet/running figure was not supplied, so the actual ready-to-ride motorcycle will be heavier.
Very Light Motorcycle
How heavy is the Yamaha YZ490?
dry weight
Using a model-level dry weight comparison, the Yamaha YZ490 is heavier than about 93.8% of 8 Yamaha motocross bikes with compatible weight data.
Dry weight
Bike + rider total weight
These totals use the model’s representative dry weight. They exclude riding gear, luggage and a passenger.
Yamaha YZ490 weight & related specs
| Model years covered | 1987 |
|---|---|
| Dry weight | 235.9 lb (107 kg) |
| Engine displacement | 490 cc |
| Power | 55 hp |
Useful weight calculations
| Horsepower per 100 lb | 23.32 hp / 100 lb |
|---|---|
| Pounds per horsepower | 4.29 lb / hp |
| Displacement per pound | 2.08 cc / lb |
| Weight per 100 cc | 48.1 lb / 100 cc |
What the weight numbers tell you
Yamaha YZ490 weight FAQ
What is the Yamaha YZ490 dry weight?
The available dry weight is 235.9 lb (107 kg). Actual ready-to-ride weight will be higher after fuel and operating fluids are added.
Is the Yamaha YZ490 lighter or heavier than other Yamaha motocross bikes?
Compared with similar Yamahas in this dataset, it is heavier than about 93.8% of 8 motocross bikes using the same weight basis.
What is the combined Yamaha YZ490 and rider weight?
Using the model’s representative dry weight and a 180 lb rider, the combined bike-and-rider mass is about 415.9 lb (188.6 kg) before riding gear, luggage or a passenger.
What is the Yamaha YZ490 power-to-weight ratio?
Available model-year data produces 23.32 hp per 100 lb. It shows engine output relative to motorcycle mass rather than just quoting peak horsepower.
Is the listed Yamaha YZ490 weight ready to ride?
No. Dry weight excludes at least some operating fluids, so the actual ready-to-ride motorcycle will weigh more.
How many cc does the Yamaha YZ490 have per pound?
The available figures work out to 2.08 cc per lb. This is not a performance rating, but it is a useful way to compare engine size against total motorcycle mass.
How does the Yamaha YZ490 compare with the median Yamaha motocross bike weight?
Compared with the median Yamaha motocross bike weight of 196.9 lb (89.3 kg), the model is roughly 39 lb (17.7 kg) heavier.
Where will I notice the Yamaha YZ490 weight most?
The weight itself is unlikely to be the main difficulty. Rider reach, steering lock and where the mass sits may matter more at walking pace.
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.