| 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 | |
| Steering Angle (maximum) | 35° from center, either direction |
| Warranty | Limited 3 Year Limited Pleasure Boat – 1 Year Limited Commercial |
Yamaha F90 Jet Drive Outboard Motor
$10,120.00
Our completely redesigned, 1.8-liter F90 Jet Drive outboard produces 65 hp at the pump. Its compact, lightweight SOHC four-cylinder, in-line design features a long-track induction system and Yamaha’s proprietary YDC-30 aluminum alloy. This creates a light, compact, powerful outboard for deck boats and deep-V hulls navigating shallow, rocky rivers, flats and sandbars. The unit weighs 354 pounds including the jet pump assembly, fits 25-inch transom boats, includes a solid 35-amp alternator, and features Power Trim & Tilt.
Key Features
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Pump Performance: Produces 65 hp at the pump to power deck boats and deep-V hulls through shallow, rocky rivers, flats, and sandbars.
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Engine Architecture: Features a completely redesigned 1.8-liter SOHC four-cylinder in-line design with a long-track induction system and proprietary YDC-30 aluminum alloy.
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Weight & Transom Fit: Weighs 354 pounds including the jet pump assembly and fits 25-inch transom boats.
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Electrical & Trim: Equipped with a solid 35-amp alternator and integrated Power Trim & Tilt.
Shipping & Delivery
We pride ourselves on offering fast and reliable shipping directly from our warehouse. Most in-stock outboard engines ship within 1–3 business days, ensuring you get your new engine as quickly as possible. Nationwide delivery is available across the U.S., with all engines carefully packaged to prevent damage during transit.
For local customers, we offer the convenience of pickup from our warehouse or local delivery. Our team is happy to assist with loading, and if you need installation or rigging support, we can help with that too.
If you're ordering from outside the U.S., we also offer international shipping. Contact us directly for a customized shipping quote, including rates, timelines, and any additional import details to ensure a smooth delivery to your location.
