Yamaha F225XB

The Yamaha F225XB brings big-block offshore performance to boats rigged for traditional mechanical controls. Built on Yamaha’s legendary 4.2-liter Big Bore V6 platform, this engine abandons heavy conventional steel cylinder sleeves in favor of plasma-fused cylinder walls. This advanced engineering reduces total engine weight while maximizing displacement, allowing the F225XB to deliver massive low-end torque, mid-range punch, and exceptional fuel efficiency.

Equipped with a 24-valve, Double Overhead Camshaft (DOHC) design and Variable Camshaft Timing (VCT), this outboard breathes efficiently and responds instantly to throttle adjustments. Designed specifically with a 25-inch extra-long shaft and standard mechanical control linkage, it is the absolute premier choice for anglers looking to upgrade to modern V6 four-stroke power and reliability without the added expense of converting their entire boat over to digital fly-by-wire steering and control systems.

Models Available:

• F225XB: Standard right-hand mechanical rotation with a 25-inch extra-long shaft. The industry benchmark for repowering mid-sized offshore hulls, center consoles, and walkarounds.

Key Features:

• Displacement: 4169cc (4.2L) Big-Bore 60° V6 (DOHC 24-Valve)

• Shaft Length: Extra-Long (635mm / 25″)

• Control Type: Remote Mechanical (Traditional throttle/shift cables)

• Fuel system: Electronic Fuel Injection (EFI)

• Alternator Output: Up to 70 Gross Amps (Immense capability for multi-screen sonar networks and demanding house batteries)

• Weight: approx. 254 kg (561 lbs) — class-leading weight distribution for a large V6

• Plasma-fused sleeveless cylinder bores for superior heat dissipation and durability

• Shift Dampener System (SDS™) compatible for smooth, silent gear engagement

Ideal For: Medium-to-large center consoles, heavy deep-V aluminum multi-species hulls, coastal walkarounds, and offshore repower projects.