Battle of the Biggest Outboards Levels Up

Battle of the Biggest Outboards Levels Up
The increasing popularity of longer, faster center-console fishing boats is fueling the drive for more powerful outboards.(Photo courtesy of Yamaha)

The 5.6-liter V8 XTO is the largest Yamaha on the market. (Photo courtesy of Yamaha)

The increasing popularity of longer, faster center-console fishing boats is fueling the drive for more powerful outboards.

By Game & Fish Editor in Chief John Geiger

Yamaha just upped their outboard game by announcing a new 425-horsepower motor for saltwater anglers. The 5.6-liter V8 XTO is the largest Yamaha on the market.


Mercury Marine earlier this year showed off their new V8 400-hp engine. But the biggest boy on the block is 7 Marine's new 627-hp monster.


Yamaha's V8 XTO

That behemoth, called the 627sv, has an all-aluminum block, weighs 1,094 pounds dry, displaces 376 cubic inches, and can push a big boat at astounding speeds. The 627sv was released in February.

Outboard manufacturers are responding to increasing popularity of large, fast open-cockpit center-console fishing boats. These vessels are changing the face of offshore fishing. Anglers are able to get farther offshore, quicker, and fish places they had not in the past.

The new Yamaha V8 XTO is the latest in the rush to super-powerful outboards. (Photo courtesy of Yamaha)


Off Florida's West Coast, anglers are now able to access Louisiana's oil rigs in a reasonable amount of time with multiple 425-plus outboards on the transom of sleek boats like Yellowfin's 42 Offshore, Contenders, Freemans or a 53-foot HydraSport Sueños.

Northeastern anglers off the East Coast can now access distance canyons in less time, and that opens new opportunities for bluefin tuna, makos and marlin.

The new Yamaha outboard, unveiled this summer, has many impressive new innovations in addition to speed. The Yamaha XTO actually is excellent at going backwards.


Anglers know there are many times when you must go in reverse fast. Backing down on a game fish to let the angler gain line is a huge part of offshore tournament fishing.

A new exhaust-gas relief system lets the V8 XTO Offshore propellers bite clean water — that is, exhaust is now released above the cavitation plate so the prop pulls at "new" water, not aerated, exhaust water like all other outboards do. The result is an immediate response and power like never before.

Anglers are now able to access Louisiana's oil rigs from Florida's west coast in a reasonable amount of time with multiple 425-plus outboards, such as the Yamaha V8 XTO.

"It's amazing how responsive this outboard is," said Capt. Sean Gill, who has run charter boats on the East Coast. "More speed is always better. And I love being the first boat on a spot. But when I first backed down with this motor, I was frightened. It's so powerful."

Gill also noted several new upgrades to Yamaha's Helm Master system, which puts control of the outboards into a joystick, but also uses complex computer algorithms to control boat positioning. Helm Master is made for multiple-outboard setups and adjusts the position and speed of each motor automatically to match joystick input.

Yamaha's Helm Master

"If you're drift-fishing, working jigs over a wreck or fishing live bait at the surface, you can now set your boat to follow patterns and variations to keep you in fish longer," said Gill.

A few other innovations from this massive new Yamaha include electronic steering, which is an industry first. This eliminates hydraulics completely, and I noticed it frees up a lot of room in the transom area – which can be taken back for storage or a larger cockpit, where we anglers spend an awful lot of time!

Although hidden from view, the new direct injection system delivers its fuel-air mixture not to the intake, but directly into the cylinders. That increases responsiveness and torque.

Get Your Fish On.

Plan your next fishing and boating adventure here.

GET THE NEWSLETTER Join the List and Never Miss a Thing.

Recommended Articles

See More Recommendations

Popular Videos

New Spinning Reel for Finesse Fishermen

New Spinning Reel for Finesse Fishermen

As Pure Fishing's Andrew Upshaw explains, reel making giant Abu Garcia has done it again at ICAST 2019 with a new spinning reel geared towards finesse fishermen.

Abu Garcia Virtual Rod with Bluetooth

Abu Garcia Virtual Rod with Bluetooth

Pure Fishing's Andrew Wheeler tells Outdoor Sportsman Group writer Lynn Burkhead all about the brand new Abu Garcia Virtual rod that integrates Bluetooth technology through a free ANGLR smartphone app.

Costa and Captains for Clean Water

Costa and Captains for Clean Water

With the company's heavy involvement in initiatives like Kick the Plastic and Captains for Clean Water campaigns, Costa's Amanda Sabin tells OSG's Lynn Burkhead all about the sunglass maker's unwavering commitment to help the freshwater and saltwater environment.

13 Fishing Pathfinder Weedless Walking Bait

13 Fishing Pathfinder Weedless Walking Bait

Fresh off catching the biggest bass in ICAST Cup history, 13 Fishing pro Jessie Mizell shows OSG's Lynn Burkhead the new Big Squirm soft plastic worm and the company's unique Pathfinder topwater walking bait that is totally weedless in design.

See More Popular Videos

Trending Articles

North Dakota Game & Fish Department said the 16-9 walleye doesn't qualify for record. Walleye

Record-Sized Walleye Was Foul-Hooked, Agency Says

G&F Online Staff

North Dakota Game & Fish Department said the 16-9 walleye doesn't qualify for record.

Want to test the outer limits of your shooting skill? There's more to successful long-range Ammo

10 Best Long-Range Cartridges Ever Made

David Hart - January 14, 2015

Want to test the outer limits of your shooting skill? There's more to successful long-range

Dozens of different bait types are commonly used for catfish, including these great options. Catfish

12 Great Catfish Baits

Jeff Samsel

Dozens of different bait types are commonly used for catfish, including these great options.

As most catfish anglers know, blue cats, channel cats and flatheads will eat darn near anything that fits in their mouths. Catfish

5 Ways To Catch Catfish on Lures

Keith Sutton - September 16, 2015

As most catfish anglers know, blue cats, channel cats and flatheads will eat darn near...

See More Trending Articles

More Boats

As we gear up for spring, we checked out the newest multi-species vessels for serious anglers. Boats

2019 Boats: 4 Multi-Species Fishing Machines

G&F Staff - February 20, 2019

As we gear up for spring, we checked out the newest multi-species vessels for serious anglers.

 Photo courtesy of Smoker Craft

Game & Fish takes a closer look at the Smoker Craft 182 Pro Boats

2018 Fishing Boat Reviews: Smoker Craft 182 Pro Mag

Game & Fish Staff - January 24, 2018

Photo courtesy of Smoker Craft Game & Fish takes a closer look at the Smoker Craft 182...

 Photos courtesy of G3 Boats

Game & Fish takes a closer look at the G3 Sportsman 200 Boats

2018 Fishing Boat Reviews: G3 Sportsman 200

John Neporadny Jr. - January 23, 2018

Photos courtesy of G3 Boats Game & Fish takes a closer look at the G3 Sportsman 200

We reviewed these new boats that stand out for value, reliability and made-for-fishing action. Boats

Great New Fishing Boats for Southern Comfort

G&F Editors - February 21, 2019

We reviewed these new boats that stand out for value, reliability and made-for-fishing action.

See More Boats

GET THE MAGAZINE Subscribe & Save

Temporary Price Reduction

SUBSCRIBE NOW

Give a Gift   |   Subscriber Services

PREVIEW THIS MONTH'S ISSUE

GET THE NEWSLETTER Join the List and Never Miss a Thing.