Battle of the Biggest Outboards Levels Up

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.

Recommended for You

Bass

Baitfish for Bass: Search, Suspend or Sink Crankbaits

Jason Houser - May 21, 2019

Crankbaits mimic exactly what they eat when hungry — other fish!

Records

Upon Further Review: 70-Year-Old Catfish Record Voided

G&F Online Staff - May 22, 2019

Experts agree record channel cat caught in 1949 was actually a blue catfish.

Fishing How-To

Why You'll Lose Your Next Big Bass

Larry Larsen

Now that you know you might screw it up the next time a big fish bites, let's fix it.

See More Recommendations

Popular Videos

Lure Lock Tackle Cases: No-Spill, No-Scent

Glenn Walker talks us through the soy-based technology that makes Lure Logic cases spill-proof and scent-proof. With Game & Fish Editorial Director Adam Heggenstaller at ICAST 2019 in Orlando.

13 Fishing Omen Black Baitcasting Rod

Multiple time FLW Costa winner Jessi Mizell is no stranger to catching big Florida bass on a popping frog. As he tells OSG's Lynn Burkhead, with the new 13 Fishing Omen Black baitcasting rod, the job just got easier.

Lowrance Enters Trolling-Motor Market with Ghost

Lowrance's Lucas Steward shows OSG's Lynn Burkhead what all of the fuss is about in the brand new Ghost trolling motor being brought to market by the Tulsa, Okla.-based fishing equipment manufacturer.

See more Popular Videos

Trending Stories

Bass

4 Tips When Jig Fishing For Bass

Chris Schneider - August 25, 2015

A 7 pound giant taken on a jig during the pre-spawn transistion in the Midwest. Although...

Catfish

10 Secret Catfish Baits You Didn't Know About

Anietra Hamper - April 02, 2015

We all have our "swear by" bait for catfish. For me, it is chicken liver, live shad or my...

Bass

Bass Pond Fishing: Catch Lunkers at Small Lakes Near You

Dan Anderson - February 13, 2018

Veteran bass anglers often dismiss urban fishing opportunities as "kid's fishing ponds," but...

See More Stories

More Boats

Boats

The Next Wave: Best New Fishing Boats for 2018

Game & Fish Online Staff - January 25, 2018

Skeeter redesigned the storage layout in the new ZX250. Anglers have plenty'of choices...

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

Boats

Evinrude Launches New 3-Cylinder E-TEC G2 Models

Drew Warden - June 12, 2019

Expanded line has a wide range of outputs sure to please many boaters.

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.

×