Yamaha F115XB 115HP – FourStroke 25-Inch Shaft

Yamaha F115XB 115HP FourStroke DOHC

The Yamaha F115XB 115HP outboard motor features a reliable L4 four-stroke engine architecture for superior maritime performance. This 1.8-liter powerhead utilizes an advanced 1.8L displacement and maintains a dry weight of 386 lbs to provide boaters with an optimized power-to-weight ratio. Its extra-long 25-inch shaft length is explicitly engineered to meet the hydrodynamic demands of deep-V offshore hulls and larger center consoles that require consistent cooling and stable thrust.

The recommended full-throttle operating range for the F115XB 115HP is a wide 5000-6000 full-throttle RPM range through a sophisticated Multi-Point Electronic Fuel Injection system. The 2.15:1 gear ratio helps support maximum mechanical leverage to translate energy from these reliable marine propulsion systems into quick low-end torque for heavy hull planing. US coastal boaters trust this Japanese-engineered platform for its long-term reliability and efficient navigation through unpredictable offshore environments during multi-day pelagic fishing missions.

F115XB DOHC Tech

The F115XB utilizes a 16-valve DOHC configuration within its robust 1.8-liter inline-four engine block. This mechanical design maximizes air intake flow to helps support rapid and responsive hole-shot acceleration. Coastal boaters can easily push heavily loaded fiberglass vessels through challenging and choppy offshore conditions.

Yamaha 115HP EFI

This Yamaha 115HP outboard incorporates a Multi-Point EFI system to optimize internal combustion cycles. Continuous digital calibration prevents power loss and helps support instant turnkey starting across varying atmospheric pressures. You achieve outstanding fuel economy during long pelagic fishing trips to distant and remote offshore reefs.

25-Inch Shaft Propulsion

The 4-Stroke 115HP motor integrates a 25-inch shaft explicitly calibrated for deep-V vessel transom dimensions. This optimal lower unit depth prevents propeller ventilation while maintaining secure mechanical leverage during turns. US boaters can confidently navigate open waters with predictable handling and superior steering precision during transit.

Yamaha Factory Warranty

The Yamaha F115XB is protected by a comprehensive limited factory warranty backed by strict manufacturing standards. This protection plan helps support long-term maritime durability and covers critical structural or essential mechanical defects. Boat owners gain peace of mind knowing their high-performance investment is supported by a global network.

Engine Care Protocol

This 4-Stroke 115HP requires minimal routine maintenance due to its robust internal components and alloys. High-quality sacrificial anodes and the thermostatic cooling system protect the powerhead from harmful galvanic corrosion.Maintenance note: Follow the manufacturer’s service procedures and lubrication specifications for the engine and gearcase.