Yamaha
Yamaha F90: specifications
The Yamaha F90 is an outboard rated at 90 hp with inline four-cylinder architecture.
Key figures
- Power
- 90hp
- Dry weight
- 162kg
- Displacement
- 1,832cm³
- Alternator output
- 35A
- Indicative price
- n/a
- Maximum warranty
- 3years
Sources and technical context
Document year: 2024.
Notes and conditions (FR)
Technical specifications
Block & combustion
| Architecture | L4 |
|---|---|
| Cylinders | 4 |
| Cycle | 4-stroke |
| Displacement | 1,832 cm³ |
| Bore × stroke | 81 × 88,9 mm |
| Compression ratio | 10,0:1 |
| Max rpm | 5000–6000 rpm |
| Specific output | 49 hp/L |
| Fuel system | Injection électronique (EFI) |
| Min. fuel | RON 90 (PON 86) |
Transmission & gearcase
| Gear ratio | 2,33:1 |
|---|---|
| Propeller configuration | Mono-hélice |
| Counter-rotating dual prop | n/a |
| 2-speed gearbox | No |
| Counter-rotating version | No |
| Available shafts | L/X (20"/25") |
Weight & footprint
| Dry weight (transom load) | 162 kg (20") |
|---|---|
| Power-to-weight ratio | 0.56 hp/kg |
Electrical charging
| Alternator (max) | 35 A |
|---|---|
| Amps per horsepower | 0.39 A/hp |
Control & integration
| Digital throttle & shift (DBW) | No |
|---|---|
| Control | Commande à distance |
| Steering | n/a |
| Power steering | No |
| Docking joystick | No |
| GPS position hold | No |
| Direct injection | No |
| VTEC (variable timing) | No |
Cost & warranty
| Public price | n/a |
|---|---|
| Cost per horsepower | n/a |
| Base warranty | 2 years |
| Maximum warranty (conditional) | 3 years |
Operation & compliance
| Emissions standard | RCD |
|---|
Head to head with its direct rivals
Prices, warranties and test conditions are not harmonised. They remain visible but do not determine strengths or rankings.
Side-by-side figures for the F90 against Mercury FourStroke 90 · Parsun F90 EFI · Suzuki DF90A, on the criteria that drive the purchase.
| Criterion | F90 | Mercury FourStroke 90 | Parsun F90 EFI | Suzuki DF90A |
|---|---|---|---|---|
| Power hp | 90 | 90 | 90 | 90 |
| Dry weight kg | 162 | 164 | 183 | 156 |
| Power / weight hp/kg | 0.56 | 0.55 | 0.49 | 0.58 |
| Alternator output A | 35 | 35 | n/a | 27 |
| Base warranty years | 2 | 2 | 2 | 5 |
An index requires at least two criteria documented for every compared engine. “n/a” means the available data cannot assess this use; it is not a poor rating.
MercuryFourStroke 9090 hp · 164 kg · 2.1 LParsunF90 EFI90 hp · 183 kg · 1.8 LSuzukiDF90A90 hp · 156 kg · 1.5 L