Boat Engine, VMAX SHO I-4 | Yamaha Outboards

Find a Dealer

The Yamaha dealer network includes thousands of locations across the U.S. There’s bound to be one near you. Zip and click below to find your nearest Yamaha Outboard dealer.

Advanced Search Options

Performance Bulletins

Pick a boat and a Yamaha Outboard. See how they perform together. Our Performance Bulletins provide data on hundreds of combinations. Learn more.

General FAQs

Have a question? We may already have the answer. Check our FAQs for answers to some of Yamaha’s most-asked questions. We cover topics from ethanol protection to warranties to maintenance. Get the answers.

Owner's Manuals

For accurate maintenance and service information, view a Genuine Yamaha Outboard Owner’s Manual. Find the manual for your model

In-line Four V MAX SHO® Outboards

  vf175 / vf150 /   vf150x /   vf115


Meet the next-gen ln-Line Four V MAX SHOs. Their advanced technology achieves the unthinkable-packing the signature VMAX SHO hole shot, midrange acceleration and super-high-output performance into ingeniously streamlined designs. With 16-valves. double overhead cams and electronic fuel injection, their next-gen tech packages are designed for maximum performance and efficient operation, and their DNA, undeniably V MAX SHO. On a bass boat, flats boat, bay boat or other performance hull, the four-stroke I·4 V MAX SHOs will deliver the exhilarating performance that anglers crave and the competition admires.


Explore the technology and performance of the In-Line F V MAX SHO.



Five inches longer, the extended shaft of the VMAX SHO 150 brings performance to multi-species boats, inshore boats and other applications that require 25-inch shaft length.


The next-gen I-4 V MAX SHO 175 and 150 descend from the 2013 IBEX® Award-winning 2.8L I-4 marine platform. IBEX is an extension of Professional BoatBuilder® magazine and the National Marine Manufacturer's Association®.

Exhilarating top speed and hole shot and incredible fuel economy—they’re earmarks of the V MAX SHO DNA. They’re also what made our first I-4 V MAX SHO, the VF150, so popular. Now, its 2013 IBEX® award-winning design is being released in a 175hp model.

The new I-4 V MAX SHO 175 serves up exhilarating top speed that bests previous models by more than 5 mph.

The new I-4 V MAX SHO 115 is the lightest DOHC 115HP four stroke on the water, and is even nearly 20 pounds lighter than a competitor’s two stroke.

The next-gen, I-4 V MAX SHO four strokes feature:

Smarter Fuel Economy
The I-4 V MAX SHOs delivers the incredibly efficient, clean and quiet performance you expect from a four stroke. Using up to 40 percent less fuel than a traditionalUltra Low Emission
carbureted two stroke, the savings alone should be enough to get you on board.

Extra Space
Four-stroke outboards like the I-4 V MAX SHOs eliminate the need for an external oil tank. That saves approximately 28 pounds and frees up storage space for tackle and other supplies.

Easy Rigging
The new four-stroke I-4 V MAX SHOs feature mechanical controls that make them compatible with most bass, bay and flats boats. To complete your outboard control system, choose from analog, 6Y5 digital or Command Link® gauges. 

Power and Performance
From the four-cylinder DOHC powerhead with four valves per cylinder, to the counterbalancing technology, each feature of the I-4 V MAX SHOs is efficiently engineered for smooth, quiet performance.

See the advanced engineering inside Yamaha's new Four-Stroke I-4 V MAX SHOs.

boat engine