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HomeMagazineBoat BriefYamaha’s big gun

Yamaha’s big gun

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Yamaha has upped the ante in the high horsepower stakes with the release of its new V8 425 XTO (Extreme Offshore) outboard. A big bore, 5.6-litre, naturally-aspirated engine, the 425hp V8 has been engineered to drive large props for maximum thrust.

“It opens up a new class of large outboard driven boats,” says Matt Walton-Smith, Yamaha Motor New Zealand’s Marine National Manager. “It delivers a more reliable, fuel-efficient and very powerful engine solution for offshore fishing, pleasure, commercial and tourism boats.”
The big outboard also introduces a range of new technologies.

“Our engineers have developed an industry-first – a fully integrated electric steering system, that has no mechanical hydraulics or electric pumps. This is combined with our updated premium CL7 multifunction touchscreen display, advanced ‘drive-by-wire’ throttle controls and Helm Master joystick docking and positioning, to create a truly effortless boating experience,” says Walton-Smith.

Yamaha has also developed the first-ever, four-stroke direct fuel injection powerhead to deliver a very high compression ratio.

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To ensure this massive power translates directly to the water, Yamaha has designed a large diameter XTO OS propeller. Its large, bladed surface area delivers extreme thrust for superior acceleration, cruising and top-end speeds, and complements the engine’s new exhaust venting technology.

Other features include an oversized gearcase, hardened gears, a robust, offshore wide-span bracket and engine mounts, and proven plasma-fusion technology for increased durability and a lighter weight.

Running a large 90-amp power generation system, the V8 delivers more than enough punch to run the large array of electrical devices in today’s modern boats.

Engine care and accessibility have also been improved. There’s a new in-water gear lubricant change-out system, which allows the outboard to be serviced while the boat is still on the water, saving on expensive haul-out costs. The multi-part cowling system also provides added convenience by allowing quick and easy access to key parts of the outboard.
Pricing, availability and the XTO’s official New Zealand launch date is to be confirmed.

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Boating NZ is New Zealand’s premier marine title devoted to putting its readers behind the wheel of the latest trailerboats, yachts and launches to hit the market. It inspires with practical content and cruising adventures, leads the fleet with its racing coverage and is on the pulse of the latest maritime news and innovation.

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