Please select your home edition
Edition
Musto 2023 Hikers LEADERBOARD

Yamaha takes big horsepower outboards to the extreme

by Peter Dick/Yamaha NZ 28 May 2018 03:03 BST 28 May 2018
Yamaha announce new 425 V8 Outboard © Yamaha Australia

Once again Yamaha has set the benchmark in bringing innovative, big horsepower outboards to the market with the launch of the new V8 425 XTO (Extreme Offshore) outboard.

This massive 425-horsepower V8 engine has been designed from the ground up to deliver extreme power and thrust, combined with a fully integrated power and control system to create a whole new level of boating experience.

Powered by a big bore, 5.6 litre, naturally aspirated engine, the V8 425 XTO has been engineered to drive large props for maximum thrust.

“Yamaha’s all-new, XTO Offshore opens up a whole new class of large outboard-driven boats, delivering a more reliable, fuel efficient and extremely powerful engine solution for offshore fishing, pleasure, commercial and tourism boats.” says Matt Walton-Smith, Yamaha Motor New Zealand’s Marine National Manager.

This high horsepower engine delivers more than just extreme power, with Yamaha introducing new technologies that have never been seen in the marine industry.

“The XTO Offshore is not just an outboard, it is a fully integrated power and control system.”

“Our engineering team have developed an industry-first 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,” Matt said.

To maximise the V8 425 XTO’s performance, Yamaha has developed the first ever four-stroke direct fuel injection powerhead. This delivers the highest compression ratio of any outboard which is only made possible through direct injection.

To ensure this massive power translates directly to the water, Yamaha has exclusively designed a large diameter XTO OS Propeller. The large bladed surface area delivers extreme thrust for excellent acceleration, cruising and top-end speeds, as well as complimenting Yamaha’s new exhaust venting technology to provide industry leading reverse thrust and control.
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 lighter weight.

Running a large 90 Amp power generation system, the V8 425 XTO delivers more than enough punch to run the large array of electrical devices in today’s modern and extreme boats.
Improved engine care and accessibility were also at top of mind for the design of this engine. Yamaha has introduced an 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.

To compliment the extreme power and innovative technologies of this awesome outboard, Yamaha’s designers have gone with a very stylish, compact and powerful looking design aesthetic, ensuring the V8 425 XTO will be the envy of every boater on the water.

Pricing, availability and the XTO’s official New Zealand launch is to be confirmed.

Related Articles

North ILCA UK circuit at Pennine
A great leveller between the ILCA 6 and ILCA 7 Ten visitors spanning from Carsington to West Kirby joined sixteen club members for the Pennine Sailing Club ILCA open, which also formed part of the ILCA UK North Grand Prix series. Posted today at 6:13 am
2025 WASZP Pre-Games in Weymouth starts today
131 boats from 18 countries prepare ahead of the main event The 2025 WASZP Pre-Games in Weymouth has become a magnet for the international foiling community. With 131 boats entered from 18 countries, this event is more than just a tune-up—it's a snapshot of the class's spirit. Posted today at 5:33 am
America's Cup: Azzurra Challenge
Azzurra's 1983 debut turned Italian sailing into a national interest. Italy has one of the most passionate and enduring histories in the America's Cup. Azzurra's 1983 debut turned Italian sailing into a national interest. Posted on 15 Jul
Musto Lark Nationals runners and riders
Returning to the golden sands and turquoise waters of Abersoch this month The Musto Lark Nationals (27-30 July) returns to the golden sands and turquoise waters of Abersoch, a venue that promises champagne sailing and tight tactical racing. Posted on 15 Jul
2025 Cascais J70 Summer Cup
The first qualification event for the 2026 Worlds Held from 11 to 13 July at the Clube Naval de Cascais, the Cascais J/70 Summer Cup marked the start of the national qualification process for the much-anticipated 2026 J/70 World Championship, which will also take place in Cascais. Posted on 15 Jul
Solo Vintage Championship
Leigh on Sea Sailing Club turned on the Essex magic Leigh on Sea Sailing Club turned on the Essex magic for the Vintage Championship, supplying champagne conditions which even Lake Como would have struggled to match, North Berwick, venue for the Solo National Championship in three weeks take note! Posted on 15 Jul
Classic Boat Challenge at West Kirby
On the hottest day of the year, some of the hottest sailors came to the hottest sailing club On the hottest day of the year, some of the hottest sailors came to the hottest sailing club at West Kirby to contest the Star classic boat challenge. Posted on 15 Jul
RS Feva Grand Prix 6 and EuroCup 4 at Parkstone
Remembered for the enduring friendships and shared love for sailing The day began with hazy clouds, but the forecast promised blazing sunshine ahead. During the competitors' briefing, we were warmly welcomed by the Race Officer, Jeremy Harford-Tapp, along with representatives from the club. Posted on 15 Jul
Long Beach Olympic Classes Regatta day 3
Mother Nature teases the competitors Mother Nature teased the competitors today and made them wait a bit, but she did not disappoint; the sun came out and a big westerly built to 18-20 knots! Posted on 15 Jul
Royal Corinthian One Designs celebrate 90 years
Enjoying the RCYC Summer Regatta on the River Crouch The RCOD class, based at the Royal Corinthian Yacht Club in Burnham on Crouch, Essex, has celebrated 90 years of racing over a long weekend of 11-13 July 2025. Posted on 15 Jul