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.
Performance:

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:
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)