Yamaha / XTO Offshore
Yamaha XF425
The XTO Offshore® 425 is the result of years of collaboration with top boat designers and has been built from the ground up to provide the ultimate in power and efficiency offshore.
All Yamaha outboards
XTO Offshore
XF425
- Power
- 425 hp
- Configuration
- V8 / DOHC / 32 valves / 4 Valves per Cylinder
- Displacement
- 5.6L
- Weight
- 432 kg (952 lbs) / 443 kg (977 lbs) / 453 kg (999 lbs)
Authorizeddealer
View on Yamaha site dealerAbout this engine
The XTO Offshore® 425 is the result of years of collaboration with top boat designers and has been built from the ground up to provide the ultimate in power and efficiency offshore. With impressive stats such as 12.2:1 compression ratio for impressive fuel economy and power, industry firsts such as an electric steering system and engineering touches such as iridium spark plugs and quad thermostats, it’s purpose-built for extreme power, durability, control and reliability.
Key features
- DIRECT-INJECTION FOUR STROKE
- EXCLUSIVE FUEL SYSTEM
- IN-BANK EXHAUST
- XTO (SDS) PROPELLERS
- IN-WATER GEAR LUBE CHANGE SYSTEM
- THRUST-ENHANCING REVERSE EXHAUST
- PUMP STOP POWER TILT LIMIT
- DUAL FLUSH SYSTEM
- WIDE-SPAN MOUNTING SYSTEM
- PHASE ANGLE CONTROL CHARGING
- IMPROVED RIGGING TUBE
- DIGITAL ELECTRIC STEERING
- HELM MASTER® EX
Full specifications
- Weight †
- 432 kg (952 lbs) / 443 kg (977 lbs) / 453 kg (999 lbs)
- Full Throttle RPM Range
- 5000 - 6000 RPM
- Fuel Induction System
- Direct Injection / Up to 2900 PSI
- Recommended Engine Oil
- Yamalube® 4M (See owner's manual)
- Engine Type
- V8 / DOHC / 32 valves / 4 Valves per Cylinder
- Displacement
- 5.6L
- Bore x Stroke
- 96 x 96 mm (3.78 x 3.78 in)
- Prop Shaft Horsepower
- 425hp at 5500 RPM
- Alternator Output at W.O.T.
- 100 Amp Gross, Max
- Compression Ratio
- 12.2:1
- Recommended Fuel
- Octane 89
- Recommended Fuel Filtration
- Yamaha 10-Micron Fuel / Water Separating Filter (external)
- C.A.R.B. Rating
- 3-Star
- Exhaust
- Through Propeller (Except in Reverse Under 2500 RPM)
- Intake
- 32
- Ignition
- TCI Microcomputer
- Spark Plug
- ILMAR7E-9 / Iridium
- Starting System
- Electric w/ PTT
- Lubrication
- Wet Sump
- Engine Oil Capacity
- 7.8L / 8.2 Quarts | 7.5L / 7.9 Quarts
- Recommended Cooling
- Thermostatic Control
- Ethanol Blend Limit
- 10% Maximum
- Gear Ratio
- (25/14) 1.79
- Gear Shift
- Forward, Neutral, Reverse
- Shaft Length
- 25" - 30" - 35"
- Degree of Tilt
- -4° through +73°
- Degree of Trim
- -4° through +16°
- Mounting Centers
- 28.5"
- Steering
- Integrated, Electric Actuation
- Steering Angle (maximum)
- 31° from center, either direction
- Warranty
- Limited 5-Year Pleasure, 3-Year Government, 1-Year Commercial
