2023 Yamaha 150HP For Sale – In-Line 4 – 25″ Shaft

• Impressive Power-to-Weight: A proven 16-valve DOHC In-Line design, with four valves per cylinder maximizes efficiency and power. It also streamlines design, giving the F200 class-leading power-to-weight and making the F175 nearly 30 pounds lighter than its closest 1.7-liter competitor.
• Optimum Power: Precision Multi-Point Electronic Fuel Injection and long-track intake system combine to maximize power and fuel efficiency across the line of In-Line Fours (except F150 Mechanical).
• Better Charging: With up to 50-amp alternators, our In-Line Fours provide plenty of power for a range of electronics, which comes in handy, now that they’re all compatible with digital controls.
• Quick Acceleration: A 10mm Offset Crankshaft allows for larger intake volume design. Four tuned intake tubes boost torque in low and mid-speed ranges for quick acceleration.
• Powerful Hole Shot: The Composite Intake Manifold is a lightweight, compact design, making these engines very versatile. Long Tube Intake Tracks are tuned to increase airflow, boosting low-end and midrange torque. This means a more powerful hole shot and increased acceleration. Even with all this responsive power, an air silencer box and surge tank reduce air intake noise and air turbulence for smoother operation.

• Corrosion Resistance: Combined with our proprietary alloy (YDC-30), our exclusive Phaze Five™ electro-deposited, anti-corrosive paint system provides a tough, five-layer barrier against corrosion. This protection is standard on all Yamaha In-Line Four-Stroke engines.
• Better Lubrication: Wet sump pump lubrication that uses a pressurized oil delivery system through an oil pump.
• To-the-Second Timing: A direct drive system with valves that are activated directly from the camshafts for more precise valve timing control. Rocker arms and adjustments are elminated for increased reliability and less maintenance.
• Minimal Vibration: Twin counterbalancing shafts minimize engine vibration for a smooth ride.
• Protection from the Elements: All Yamaha In-Line Four models feature a proven cowling drain system, to easily and efficiently drain away any water that enters the cowling during normal engine operation. Incoming air is routed through a labyrinth of passages that trap and drain water before it enters the engine’s intake, for maximum reliabilty.

• Repower Ready: 26-inch mounting centers and a bolt pattern that matches previous two strokes make In-Line Fours flexible for most repowers
• Variable Trolling: Our entire I-4 series has a user adjustable trolling speed. This allows for precision adjustment of trolling in 50-RPM increments when equipped with a Yamaha digital gauge. Trolling range varies based on model.
• Extended Trim: Extended Trim Range delivers better acceleration-to-plane and top-end speed. The tilt range is a full 70° for tilting the engine above the waterline.
• Easy Engine Flushing: A Freshwater Flush Device allows you to flush the engine without running it, for added convenience and extended engine life.
• Quieter Operation: Yamaha’s Shift Dampener System greatly reduces the noise commonly associated with shifting gears. Using a special design and components, much of the force of shifting is absorbed, resulting in far quieter and smoother operation.

• Compatible with mechanical controls or digital Command Link Plus® or Helm Master® controls
• Only 478 pounds (20” shaft model)
• Available in 20” or 25” shafts
• Powerful 50-amp alternator (2.8-liter digital) or 35-amp alternator (2.7-liter mechanical)

• Engine Type: Inline 4
• Displacement: 2.8L (DEC)
• Bore x Stroke: 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: 10.3:1
• Fuel Induction System: EFI
• Weight*: 221kg (487 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: LFR5A-11
• Alternator Output: 35 – 50 Amp
• 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: 25″
• Degree of Tilt: 70°
• Degree of Trim: -4° through +16°
• Dry Weight: 222kg (489 lbs)
• Mounting Centers: 26″
• Steering Angle (maximum): 32° from center, either direction
• Warranty: Limited 3 Year Limited Pleasure Boat – 1 Year Limited Commercial.

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