Yamaha Jet Drive · Virginia Beach
Yamaha F90 Jet Drive outboard: specs, rigging and repower in Virginia Beach.
The F90 Jet Drive is the 90 hp-class 1.8-liter four with a jet pump, listed by Yamaha at 65 hp at 5500 rpm at the pump. It fits a 25-inch transom, weighs 354 lb including the pump and has power trim and tilt, with mechanical or Multi-Function Tiller Handle control.
- Engine rating
- 90 hp class
- Output at the jet pump
- 65hp @ 5500rpm
- Engine type
- Inline 4
- Displacement
- 1.8L
- Transom
- Fits 25" Transom
- Weight †
- 161kg (354 lbs)
Specifications
Yamaha F90 Jet Drive
specs, as Yamaha lists them.
Specs and features: Yamaha, read from yamahaoutboards.com and Yamaha's Engine Comparison tool on 2026-10-05. Yamaha can change a model by model year; we confirm the exact engine when we quote.
| Weight † | 161kg (354 lbs) |
|---|---|
| Full Throttle RPM Range | 5000 ~ 6000 rpm |
| Fuel Induction System | EFI |
| Recommended Engine Oil | Yamalube® 4M (See owner's manual) |
| Engine Type | Inline 4 |
| Displacement | 1.8L |
| Bore x Stroke | 81mm x 88.9mm (3.19 x 3.5 in) |
| Prop Shaft Horsepower | 65hp @ 5500rpm |
| Alternator Output at W.O.T. | 35 Amp |
| Compression Ratio | 10.0:1 |
| Recommended Fuel | Octane 87 |
| Recommended Fuel Filtration | Yamaha 10-Micron Fuel/Water Separating Filter (external) |
| C.A.R.B. Rating | 3-Star |
| Exhaust | Through Jet Nozzle |
| Intake | 16 |
| Ignition | TCI Microcomputer |
| Spark Plug | LFR5A-11 |
| Starting System | Electric |
| Lubrication | Wet Sump |
| Engine Oil Capacity | 3.2L/3.0L |
| Recommended Cooling | Thermostatic Control |
| Ethanol Blend Limit | 10% Maximum |
| Gear Ratio | Direct Drive |
| Gear Shift | Forward, Neutral, Reverse |
| Shaft Length | Fits 25" Transom |
| Degree of Tilt | 70° |
| Degree of Trim | -4 through 16° |
| Mounting Centers | N/A |
| Steering Angle (maximum) | 35° from center, either direction |
| Warranty | Limited 3 Year Limited Pleasure Boat - 1 Year Limited Commercial |
† Weight refers to shortest shaft length, and is measured without motor oil, gearcase oil and propeller (except models 25 hp and under, which include a standard propeller). All Jet model weights include the jet pump assembly (weight estimated).
Rigging
Transom, controls
and Helm Master EX.
Transom
Yamaha lists: Fits 25" Transom
We confirm the right fit for your transom before we quote.
Controls
- Mechanical Controls (compatible)
- Multi-Function Tiller Handle (compatible)
- Helm Master® EX (not available)
- Command Link Plus Digital Controls (not available)
Gauges
- Command Link and Analog Gauges (compatible)
- Command Link Plus Display (not available)
Yamaha lists Helm Master EX as not available for the F90 Jet Drive.
F90 Jet Drive model codes
| Model code | Controls | Color |
|---|---|---|
| F90JB | Remote mechanical | Gray |
Model codes from Yamaha's current model-code list. Ask us which code fits your boat; we confirm it when we quote.
Features
What's built into
the F90 Jet Drive.
- 90 hp-class jet model; Yamaha lists 65 hp at 5500 rpm at the pump.
- 354 lb including the jet pump assembly.
- Fits 25-inch transoms; 35-amp alternator; power trim and tilt.
- Phaze Five anti-corrosion paint over YDC-30 alloy.
- ECM connects to Yamaha Diagnostic System software.
- On-engine water-separating fuel filter with water sensor.
- One-piece cowling with air intake labyrinth.
- Multi-point EFI.
- SOHC or DOHC platforms depending on model.
- Microcomputer ignition timing.
- Composite intake manifold with long tube intake tracks.
- No gearcase or propeller below the hull, so the boat can pass over obstructions.
- F40, F60, F90 and F115 jets accept the optional Multi-Function Tiller Handle.
- Freshwater flush device works without running the engine.
Repower
Repowering with the F90 Jet Drive
at Coastal Marine.
Coastal Marine is an Elite Yamaha dealer and an authorized Yamaha Repower Center on Shore Drive in Virginia Beach. A repower with the F90 Jet Drive takes the old or worn-out outboard off a sound hull, of any make, and puts the new Yamaha on, with the controls, gauges and rigging the new setup needs. Warranty work on the Yamaha power we install is authorized in-house.
We don't post engine prices. Tell us the boat, what's on the transom now and roughly how many hours it has, and we'll quote the F90 Jet Drive for it. Financing is available on repowers through Yamaha Financial Services.
Ready when you are.
Common questions
Yamaha F90 Jet Drive
questions, answered.
Get a quote
on new Yamaha power.
Tell us the boat, the engines on it now and roughly the hours, and we'll quote the F90 Jet Drive for it. We answer same business day.