Inline 4 Four Strokes
There’s a good reason why the legendary Yamaha F150 has enjoyed over a decade of unrivaled popularity.
Powerful, light, nimble and compact, boaters know that its proven reliability is unmatched for everything from pontoons to flats boats to deep-V hulls. In fact, its versatile technology inspired the F200 and has served as the reliable foundation for remarkable advancements for both models. Whether your rigging is digital or mechanical, the entire lineup is compatible with your control preference. Plus, new integrated steering lets boaters hit the water with responsive performance, a cleaner bilge and more space on the boat for storage and comfort.
Add in the sleek, modern cowling design and digital models now available in pearlescent white, and the I-4s just keep getting better and better, year after year.
In-Line 4 150 HP
| 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 |
| Full Throttle RPM Range | 5000 ~ 6000 rpm |
| Alternator Output at W.O.T. | 35 / 50 Amp |
| Compression Ratio | 9.0:1 / 10.3:1 |
| Fuel Induction System | EFI |
| Weight † | 20” Mechanical 231kg (509 lbs) 20” DEC 237kg (522 lbs) |
| Recommended Fuel | Octane 87 / Octane 89 |
| Recommended Engine Oil | Yamalube® 4M (See owner’s manual) |
| 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 | |
| Steering Angle (maximum) | 30° from center, either direction |
In-Line 4 200 HP
With impressive power-to-weight, volumetric efficiency and integrated steering, this I-4 is the perfect, lightweight 200-hp solution for small- to medium-size boats. Its unique Variable Camshaft Timing (VCT) improves intake and exhaust efficiency and boosts torque throughout the rev range. Compatible with mechanical, digital or Helm Master® EX boat controls Comes with integrated electro-hydraulic steering for digital models and integrated hydraulic steering for mechanical models Runs on economical 89 octane Only 525 pounds (20” shaft DEC model) 20” or 25” shaft options (LH rotation available in 25” shaft digital control) 50-amp alternator provides plenty of power for onboard electronics Digital F200 available exclusively in new pearlescent white Mechanical F200 available in signature Yamaha gray
| Engine Type | Inline 4 |
| Displacement | 2.8L |
| Bore x Stroke | 96 x 96.2mm (3.78 x 3.79in) |
| Prop Shaft Horsepower | 200hp @ 5500 rpm |
| Full Throttle RPM Range | 5000 ~ 6000 rpm |
| Alternator Output at W.O.T. | 50 Amp |
| Compression Ratio | 10.3:1 |
| Fuel Induction System | EFI |
| Weight † | Mechanical – 234 kg (516 lbs) / DEC – 238 kg (525 lb) |
| Recommended Fuel | Octane 89 |
| Recommended Engine Oil | Yamalube® 4M (See owner’s manual) |
| Recommended Fuel Filtration | Yamaha 10 Micron Fuel/Water Separating Filter (external) |
| C.A.R.B. Rating | 3-Star |
| Exhaust | Through Propeller |
| Intake | 16-valve |
| Ignition | TCI Microcomputer |
| Spark Plug | NGK-LFR6A-11 |
| Starting System | Electric |
| Lubrication | Wet Sump |
| Engine Oil Capacity | 4.5L/4.3L w/without filter |
| Recommended Cooling | Thermostatic Control |
| Ethanol Blend Limit | 10% Maximum |
| Gear Ratio | 1.86:1 |
| Gear Shift | Forward, Neutral, Reverse |
| Shaft Length | 20″ / 25″ |
| Degree of Tilt | 70° |
| Degree of Trim | -4° through +16° |
| Mounting Centers | 26″ |
| Steering | |
| Steering Angle (maximum) | 30° from center, either direction |
Interested In A Inline 4 Four Strokes?
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