XTO 425hp V8
An unparalleled revolutionary concept. An outboard that combines unparalleled levels of power, torque and speed with cutting-edge technology and performance.
High power
The first 4-stroke outboard engine with direct injection.
Go beyond the next level.
The robust new design and dynamic look of the XTO 425hp V8 immediately convey its incredible concepts and technologies, industry firsts waiting to realize their full potential.
The first 4-stroke outboard with direct injection. The first with a fully integrated boat control system in Yamaha's Helm Master® system. The first to offer a level of reverse thrust, torque and speed without torque.
A revolution in big boat performance with a story worth telling. Explore the limits. Go to the extreme.
XTO 425hp V8
High power
Color
Shaft length
Propeller rotation
Start-up method & Tilt System
Control method
Engine
-
Engine type
4 times
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Displacement
5559 cc
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No. of cylinders/configuration
60°-V8, 32-valve, DOHC with VCT
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Diameter x stroke
96,0 x 96,0
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Propeller shaft power at half revolutions
316.9 kW/5500 rpm
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Full throttle operating range
5000-6000 rpm
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Lubrication system
Direct Fuel Injection
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Ignition / advance system
TCI
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Start-up system
Electric
-
Gear ratio
1.79 (25:14)
Dimensions
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Recommended transom height
X: 640 mm U: 767 mm E: 894 mm
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Oil sump capacity
7.8 liters
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Weight without propeller
442 - 463 kg
Additional features
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Control
Electronic Control (DBW)
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Trim and Tilt Method
Electric lighting and trimming
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Lighting coil / alternator
12 V-90 A with rectifier/regulator
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Propeller
Optional
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Counter Rotation Model
Available on X, U and E
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Shallow Water Drive
Standard
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Tilt limiter
Standard
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Digital Network Gauge II (CL7)
Optional
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Silent Shift System (SDS)
Optional
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Full tilt up angle
77°
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Remarks
The kW data in this sheet are based on the ICOMIA 28 standard, measured on the propeller shaft.
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