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.

Technical Specifications of Yamaha F115XB

• This outboard utilizes a robust L4 DOHC 16-valve architecture to deliver 115 horsepower efficiently.
• The lightweight 175 kg design features a 25-inch shaft for standard extra-long transom boats.
• Advanced Multi-Point Electronic Fuel Injection is designed to support precise combustion across the 5000-6000 full-throttle RPM band.
• A specialized 2.15 to 1 gear ratio provides mechanical leverage for heavy hull thrust.
• Standard right-hand rotation and remote mechanical steering allow for predictable vessel handling and total control.
• An onboard 35-amp alternator helps support critical navigation displays and sonar equipment remain fully powered.
• Your investment is protected by a factory-backed warranty based on strict Japanese high-quality manufacturing standards.

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.

115HP Remote Control

This Outboard 115HP utilizes a TCI Microcomputer ignition for precise timing and reliable electronic engine management. An integrated 35-amp alternator generates consistent electrical output to supply your critical onboard navigation instruments. Serious offshore tournament fishermen can operate multiple sonar screens and pumps without draining the starting battery.

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.

Offshore Hull Match

The F115XB 115HP provides the appropriate balance for modern fiberglass hulls requiring extra-long shaft length. Its 386 lbs design prevents stern-heavy displacement while maximizing planing speeds on deep open waters. US offshore boat owners enjoy superior agility when navigating coastal estuaries or large inland water bodies.

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.