Description
Delivery
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Extreme ? Go beyond the next level.
The muscular new shape and dynamic look of the XTO 425hp V8 immediately communicate its incredible industry-first concepts and technologies waiting to be unleashed.
The first direct injection 4-stroke. The first with integral electronic steering, linking seamlessly to Yamaha’s Helm Master? system. The first to achieve a new level of reverse thrust, torque, and speed. It’s a genuine performance revolution for larger boats and an incredible story. Achieve the ultimate. Discover Extreme.
At a glance
- Extreme Power – 5.6 L ? 32-v ? 60? V8 ? DOHC ??VCT
- Efficiency – first-ever Direct Injection 4-stroke
- Precision – built-in electric steer-by-wire system
- Ultimate control – unique all-electronic systems
- 300% more reverse thrust from new exhaust system
- Reliability – tough custom-engineered crankshaft
- Dependability – new heavy duty gear system
- New sleek lower unit design with massive gearcase
- Dual chamber oil pump to handle extreme demands
- Ultra-convenient in-water gear oil change facility
- High Output charging – for more output at low rpm
- Ideal for heavy boats and RIBs – XTO OS propellers
Technical Information
- Engine type
- 4-stroke
- Displacement
- 5559 cc
- No. of cylinders/configuration
- 60?-V8, 32-valve, DOHC with VCT
- Bore x stroke
- 96.0 x 96.0
- Prop shaft output at mid range
- 316.9kW / 5,500 rpm
- Full throttle operating range
- 5,000-6,000 rpm
- Lubrication system
- Direct Fuel Injection
- Ignition / advance system
- TCI
- Starter system
- Electric
- Gear ratio
- 1.79 (25:14)
- Recommended boat transom height
- X:640mm U:767mm E:894mm
- Oil pan capacity
- 7.8 litres
- Weight without propeller
- 442 ? 463 kg
