Across 4 covered model years from 2020 to 2023, the Yamaha FZ-S Fi motorcycle has supplied wet/running weights ranging from 288.8 lb (131 kg) to 297.6 lb (135 kg).
Yamaha FZ-S Fi weight overview
The weight is relatively manageable, so the bike should demand less effort than a heavyweight machine when backing up, parking or making slow-speed corrections.
Light Motorcycle
How heavy is the Yamaha FZ-S Fi?
wet weight
Using a model-level wet weight comparison, the Yamaha FZ-S Fi is lighter than about 84.8% of 69 Yamaha naked bikes with compatible weight data.
Ready-to-ride weight range
Bike + rider total weight
These totals use the model’s representative wet weight. They exclude riding gear, luggage and a passenger.
Yamaha FZ-S Fi weight & related specs
| Model years covered | 2020, 2021, 2022, 2023 |
|---|---|
| Wet / running weight | 288.8 lb (131 kg) to 297.6 lb (135 kg) |
| Engine displacement | 149 cc |
| Power | 12.4 hp |
| Torque | 9.4 lb-ft (12.8 Nm) to 9.8 lb-ft (13.3 Nm) |
| Fuel capacity | 3.17 US gal (12 L) to 3.43 US gal (13 L) |
| Full-tank fuel weight (estimated) | 19.7 lb (8.9 kg) to 21.4 lb (9.7 kg) |
Weight changes by model year
The 2020 model is used as the baseline where data is available. Only later supplied values that differ are shown below. A year pill does not mean every individual weight field was supplied for that year.
Useful weight calculations
| Horsepower per 100 lb | 4.17 hp / 100 lb |
|---|---|
| Pounds per horsepower | 24 lb / hp |
| Torque per 100 lb | 3.27 lb-ft / 100 lb to 3.3 lb-ft / 100 lb |
| Displacement per pound | 0.5 cc / lb to 0.52 cc / lb |
| Weight per 100 cc | 193.8 lb / 100 cc to 199.7 lb / 100 cc |
| Fuel weight as % of bike weight | 6.8% to 7.2% |
What the weight numbers tell you
Yamaha FZ-S Fi weight FAQ
What is the Yamaha FZ-S Fi wet weight?
The supplied wet/running weight is 288.8 lb (131 kg) to 297.6 lb (135 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 FZ-S Fi lighter or heavier than other Yamaha naked bikes?
It is comparatively light for this Yamaha category. The model lands near the 15th percentile for weight in the compatible dataset.
Which Yamaha FZ-S Fi years have different weight specs?
The supplied data shows different weight figures across the 2020-2023 model years. Use the year-specific changes section above for the exact value attached to each changed year.
How much does a full tank add to the Yamaha FZ-S Fi?
Based on the supplied 3.17 US gal (12 L) to 3.43 US gal (13 L) tank capacity, the gasoline itself weighs about 19.7 lb (8.9 kg) to 21.4 lb (9.7 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 FZ-S Fi and rider weight?
Using the model’s representative wet/running weight and a 180 lb rider, the combined bike-and-rider mass is about 477.6 lb (216.6 kg) before riding gear, luggage or a passenger.
What is the Yamaha FZ-S Fi power-to-weight ratio?
Available model-year data produces 4.17 hp per 100 lb. It shows engine output relative to motorcycle mass rather than just quoting peak horsepower. That places it around the 6th percentile within the compatible Yamaha naked bike power-to-weight comparison.
How much of the Yamaha FZ-S Fi total weight comes from fuel?
The calculated full-tank fuel mass is about 6.8% to 7.2% of the listed motorcycle weight. Because the available basis is wet/running weight, that fuel is already included in the ready-to-ride figure.
How does Yamaha FZ-S Fi torque compare with its weight?
Where compatible torque and weight figures are available, the model works out to 3.27 lb-ft per 100 lb to 3.3 lb-ft per 100 lb. This gives more context than torque alone because it relates engine twist to the mass it has to move.
What is the Yamaha FZ-S Fi engine-size-to-weight ratio?
The available figures work out to 0.5 cc per lb to 0.52 cc per lb. This is not a performance rating, but it is a useful way to compare engine size against total motorcycle mass.
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.