Yamaha 425HP DEC | XF425XSB2

The Yamaha XF425XSB2 pairs a white cowling with standard-direction rotation on Yamaha's 425 hp XTO Offshore platform, weighing 952 lbs, lighter than the USB2 build despite sharing a 5,559cc, eight-cylinder four-stroke powerhead. It mounts on a 25-inch shaft with Yamaha's DEC digital controls, and the digital electronic control setup is built to coordinate smoothly with a second XTO motor on a twin-engine transom.

What sets this unit apart

Keeping standard rotation rather than a counter-rotation gearcase means the XF425XSB2 suits single-engine installations or rigs already built around a standard-turning prop. Integrated electric steering is built into the motor itself, and a digital throttle, electric start and safety lanyard are all part of the package, along with a flush port for rinsing the cooling system after a day out. At 952 lbs, it rigs noticeably lighter than its white-cowled USB2 sibling.

Before you order

Direct injection, iridium spark plugs and a quad-thermostat cooling setup are shared with the rest of the XTO range, and full throttle is rated for the 5000 to 6000 rpm band on the XSB2. Have your rigger confirm shaft length and rotation match your transom, since a propeller is not included with this motor and rotation cannot be changed after delivery.

Common questions

Does this include steering controls? Yes, integrated electric steering is built into the XSB2 rather than a separate helm pump.

What warranty applies? The XSB2 carries Yamaha's 5-year coverage as new stock.