Description
Yamaha F90JB 90hp outboard for sale in Australia — brand new, genuine Yamaha Marine, with free shipping Australia-wide and New Zealand, and a full factory warranty.
The Yamaha F90JB 90hp 15 inch shaft outboard motor Australia — this page covers everything you need to know about this specific Yamaha model before ordering.
Yamaha F90JB 90hp FourStroke Outboard Motor | Short (15″) Shaft | Midnight Blue | Standard Rotation | Australia & New Zealand
The Yamaha F90JB 90hp outboard motor is Yamaha FourStroke — the most trusted four-stroke outboard range in Australia, combining reliability, fuel efficiency and smooth power delivery. Fitted with a Short (15″) Shaft and jet drive, finished in midnight blue cowling — Yamaha Marine’s signature colour, recognised worldwide as the mark of a genuine Yamaha outboard, with standard rotation lower unit — for single-engine use or starboard position on twin-engine installations — this motor suits small aluminium tinnies, dinghies and lightweight boats with low transoms under 15″. Available now at Outboard And Small Engines — brand new, 100% genuine Yamaha Marine, with free shipping Australia-wide and to New Zealand, and full Yamaha factory warranty.
Text +61 480 009 809 or email info@outboardandsmallengines.com.au before ordering. Our specialists have hands-on knowledge of every Yamaha motor we sell. We will confirm the F90JB is the right fit for your specific vessel, transom height and intended use — honest advice, zero sales pressure, every time.
Yamaha F90JB — FourStroke
the most trusted four-stroke outboard range in Australia, combining reliability, fuel efficiency and smooth power delivery. The F90JB uses Yamaha Marine’s multi-point Electronic Fuel Injection (EFI) system, which delivers precise fuel metering at every RPM for outstanding fuel economy, choke-free cold starting and clean emissions that comply with all Australian and New Zealand marine park and waterway regulations. From Tasmania’s cold winter mornings to Queensland’s tropical heat, the F90JB starts first time, every time, and delivers smooth consistent power from idle to wide-open throttle.
Yamaha F90JB — Jet Drive Lower Unit
The F90JB is fitted with a jet drive lower unit instead of a conventional propeller. The jet drive draws water through a flush intake mounted on the underside of the hull and expels it at high velocity through a directional nozzle, enabling the motor to operate in water as shallow as 15–20 centimetres. This makes the F90JB the ideal outboard for Australian inland rivers, tidal flats, billabongs, flood plains and any waterway where submerged rocks, logs or debris make propeller operation unsafe. Steering is achieved by rotating the nozzle; reverse is achieved via a deflector bucket. No propeller to strike, bend or shear — just reliable, safe power in the shallows.
Yamaha F90JB — Short (15″) Shaft
The Short (15″) Shaft on the F90JB suits small aluminium tinnies, dinghies and lightweight boats with low transoms under 15″. Shaft length is one of the most critical specifications when choosing an outboard motor — selecting the wrong shaft length leads to propeller ventilation, poor performance and unnecessary wear. The 15″ shaft on the F90JB positions the propeller at the optimal depth for small aluminium tinnies, dinghies and lightweight portable boats with transom heights under 15 inches, minimising cavitation and maximising thrust efficiency in real-world Australian and New Zealand operating conditions.
Yamaha F90JB — Jet Drive
The F90JB is configured with jet drive lower unit — replaces the conventional propeller with a water jet impeller, enabling safe operation in extremely shallow water, rivers, tidal flats and areas where propeller strike is a risk. This control configuration is matched to the vessel types and operating environments the F90JB is designed for, giving operators precise, responsive and comfortable control whether running open water, navigating estuary channels or working a favourite fishing spot.
Yamaha F90JB — Midnight Blue Cowling | Standard Rotation
The F90JB is finished in midnight blue cowling — Yamaha Marine’s signature colour, recognised worldwide as the mark of a genuine Yamaha outboard. The lower unit is fitted with standard rotation lower unit — for single-engine use or starboard position on twin-engine installations. For twin-engine boat owners, pairing a standard-rotation motor on the starboard side with a counter-rotating motor on the port side eliminates propeller torque effect, delivering superior straight-line tracking, improved fuel economy and more precise handling — particularly at speed.
Yamaha F90JB 90HP — Full Technical Specifications
Yamaha F90JB Technical Specifications
| Model Code | F90JB |
| Brand | Yamaha Marine |
| Horsepower | 90HP |
| Engine Type | 4-Stroke |
| Shaft Length | Short (15″) Shaft |
| Control Type | Remote Control |
| Rotation | Standard Rotation |
| Cowling Colour | Midnight Blue |
| Cooling System | Water-cooled |
| Condition | Brand New — factory sealed |
| Warranty | Full manufacturer factory warranty |
What’s Included in the Box
- Brand new outboard motor, factory sealed
- Complete gauge set — tachometer, trim gauge, fuel gauge and voltmeter
- Propeller — matched to motor specifications
- Full manufacturer factory warranty documentation
- Operator’s manual and rigging guide
- Standard factory fittings and mounting hardware
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