Yamaha LF300XSB 300HP Outboard – 25in Shaft, Counter Rotation

Description

Twin-engine steering friction disappears instantly when the DES-equipped Yamaha LF300XSB integrates its actuators on your port transom. The massive 4.2-liter block translates fly-by-wire binnacle inputs into brutal midrange torque, piloting heavy offshore center consoles through treacherous inlets smoothly. Verifying your exact twin-engine bracket secures this 25 inch counter rotating DES outboard perfectly without starving the water pump in heavy chop.

Clear messy external hydraulic steering cylinders off your transom completely by utilizing the integrated Digital Electric Steering system for immediate mechanical assist. You command instantaneous directional changes and precise dock maneuvers without fighting stiff physical linkage in rough seas. Yamaha casts the 267 kg lower unit using impact-deflecting marine aluminum alloys. This structural barrier stops severe galvanic decay when finalizing an integrated digital electric steering outboard installation for continuous saltwater tournament use.

Key Features of Yamaha LF300XSB

• Integrated Digital Electric Steering: Eliminates messy external hydraulic cylinders completely, delivering sports-car-like handling and zero steering fatigue during long runs.
• Digital Electronic Control (DEC): Translates hand movements into instant electronic commands, eliminating mechanical cable slop during precise marina maneuvering.
• Counter-Rotating Gearcase: Cancels the massive lateral thrust of a starboard engine, keeping twin-engine performance hulls tracking perfectly straight underway.
• 4.2-Liter DOHC Block: Breathes massive volumes of clean air efficiently, generating 300 horsepower effortlessly to lift heavy fiberglass hulls onto plane.
• 25-Inch Extra-Long Shaft: Drops the propeller deeply below high offshore transoms, maintaining solid forward thrust and preventing water pump starvation.
• 50-70 Amp Charging Alternator: Generates massive electrical current continuously, keeping deep cycle house batteries fully charged for heavy-duty marine electronics.
• 1.75:1 High-Speed Gearcase: Spins aggressive high-pitch propellers efficiently, translating massive block torque directly into forward vessel momentum.
• Multi-Point Sequential EFI: Meters gas perfectly into the cylinders, delivering crisp throttle response and maximizing fuel efficiency across the operating range.
• Hydraulic Power Trim: Adjusts the running angle actively via the binnacle switch, optimizing bow attitude across aggressive lake swells.
• Clean Four-Stroke Operation: Burns fuel with strict efficiency, ensuring peak performance while meeting modern clean-air environmental standards globally.

Why Choose Yamaha LF300XSB

This advanced 25-inch block acts strictly as a high-end fly-by-wire power plant featuring built-in electric steering designed for the port side of dual-engine applications. Substituting a standard mechanical control model sacrifices electronic shifting entirely. Perfecting your steer-by-wire multi-engine tracking is mandatory for smooth dual-engine communication.

• Verify your twin-engine transom bracket accommodates a 25-inch shaft length safely.
• Link the DEC module to your master binnacle to synchronize shift commands perfectly.
• Navigate restricted coastal fisheries legally utilizing advanced four-stroke combustion.

Ideal Application and Vessel Fitment

This 300-horsepower drive-by-wire block is engineered strictly for modern deep-V center consoles, premium fiberglass skiffs, and twin-engine coastal vessels demanding a 25-inch shaft alongside Helm Master EX compatibility. Operating as a highly responsive digital drive equipped with integrated DES, it translates electronic throttle data instantly, keeping twin-engine performance hulls tracking perfectly straight at high cruising speeds. It thrives in competitive offshore environments where balancing massive thrust requires precise fly-by-wire power.

Warranty, Support and Maintenance

Authorized recreational operation receives a 3-Year Limited Warranty alongside exceptional factory support. Registered commercial applications fall under a strict 1-Year Commercial Warranty with zero corrosion coverage applied to the block. Scheduled maintenance requires replacing gearcase lubricants and changing oil filters at manual-specified intervals. Always save all physical service records. Your engine serial number acts as the only way to source exact genuine replacement parts. Mulmotor provides product-information support before purchase and assistance with order-related questions.