| Specification | Detail |
| Weight | 20” Mechanical 231kg (509 lbs) / 20” DEC 237kg (522 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 | 2.7L (Mechanical) / 2.8L (DEC) |
| Bore x Stroke | 94 x 96.2 (3.70 x 3.79in) / 96 x 96.2mm (3.78 x 3.79in) |
| Prop Shaft Horsepower | 150hp @ 5500 rpm |
| Alternator Output at W.O.T. | 35 / 50 Amp |
| Compression Ratio | 9.0:1 / 10.3:1 |
| Recommended Fuel | Octane 87 / Octane 89 |
| Recommended Fuel Filtration | Yamaha 10 Micron Fuel/Water Separating Filter (external) |
| C.A.R.B. Rating | 3-Star |
| Exhaust | Through Propeller |
| Intake | 16 |
| Ignition | TCI Microcomputer |
| Spark Plug | NGK-LFR6A-11 / LFR5A-11 |
| Starting System | Electric |
| Lubrication | Wet Sump |
| Engine Oil Capacity | 4.5L / 4.3L |
| Recommended Cooling | Thermostatic Control |
| Ethanol Blend Limit | 10% Maximum |
| Gear Ratio | 2.00:1 |
| Gear Shift | F-N-R |
| Shaft Length | 20″ / 25″ |
| Degree of Tilt | 70° |
| Degree of Trim | -4° through +16° |
| Mounting Centers | 26“ |
| Steering Angle (maximum) | 30° from center, either direction |
| Warranty | Limited 3 Year Limited Pleasure Boat – 1 Year Limited Commercial |
Yamaha In-Line Four F150 Outboard Motor
$14,520.00
As the motor that started it all, the In-Line Four 150 is more popular than ever. Powerful, light, and compact, it offers both mechanical and digital compatibility with integrated steering, making it more streamlined and responsive than ever before. It weighs only 509 pounds (20-inch shaft DEC model) and features a powerful 50-amp alternator for the 2.8-liter digital version or a 35-amp alternator for the 2.7-liter mechanical version. It is available in 20-inch or 25-inch shafts (with 20-inch available on mechanical models only), with the Digital F150 offered in signature Yamaha gray, pearlescent white, and classic white, and the Mechanical F150 available in signature Yamaha gray.
Key Features
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Integrated Steering: Comes with integrated electro-hydraulic steering for digital models and integrated hydraulic steering for mechanical models.
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Lightweight Build: Weighs just 509 pounds for the 20″ shaft DEC model.
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Alternator Output: Equipped with a 50-amp alternator (2.8-liter digital) or a 35-amp alternator (2.7-liter mechanical).
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Shaft and Color Options: Available in 20” or 25” shafts (20″ mechanical models only), with multiple color finishes depending on the model choice.
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Shipping & Delivery
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.
