Yamaha 4 Stroke XTO Outboard Engines

Yamaha 4 Stroke XTO Outboards, Introduction and Specifications

4 Stroke XTO F425 V8

XTO F425 V8

The XTO Offshore® 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.

Max. prop shaft output 312.6 kW
Full throttle operating range 5000 - 6000 r/min
Idling speed 650 - 750 r/min
Max fuel consumption 142.0 L/h @ 6000 r/min
Engine type 32 - Valve, DOHC with VCT, 60 deg. V8
Displacement 5559 cm3
Bore X stroke 96.0 x 96.0 mm
Compression ration 12.2:1
Starting enrichment Fuel injection
Fuel induction system Direct fuel consumption
Alternator 90 A (battery charging: 72A)
Bracket /Drive:
Gear ratio 1.79 (25/14)
Propeller rotation Clockwise / Counter clockwise
Shaft length X, U, E
Engine transom height X: 640mm (25.2 inch), U:767mm (30.2 inch), E: 894mm (35.2 inch)