Yamaha Outboard Motors

Diamond Marine is a Yamaha Outboard Motor dealer, we do re-powers and sell small motors. We have certified Yamaha technicians on staff and a parts department open to the public for your Yamaha parts, filters and oil.  Tom Massey is our Yamaha outboard specialist and he can quote you pricing on loose motors and re-power jobs including gauges, controls, cables and steering, trade-ins are welcome.  Please call with any questions today at 203 466-5384 and ask for Tom. 


PORTABLE 4 STROKES 2.5 HP, 4 HP, 6 HP

Yamaha’s smallest Portables, the F6, F4 and F2.5, weigh in at as little as 37 pounds, with streamlined overhead-valve, one-cylinder designs. Their light weights, combined with built-in carrying handles, resting pads and an oil-leak prevention system for on-side storage capability create true portability. Add to that their efficiency, performance and reliability and these pint-sized powerhouses are perfect for all sorts of light duty, like hopping to the cuddy on a tender. Wherever the day takes you, you can take along a little extra power with an F6, F4 or F2.5 Yamaha Portable.


PORTABLE 4-STROKES 8 HP, 9.9 HP

Yamaha’s mid-powered Portables, the F9.9 and F8, provide nimble, lightweight, efficient power you can take with you. These SOHC 212cc two-cylinder wonders are both under 90 pounds. They feature carrying handles, resting pads and on-side storage capability; so they easily ride along to the cabin or your hunting spot. With forward-mounted controls and optional power tilt, they make operation easy—perfect for spending a full day fishing the lake or skimming the marsh with your decoys. They also serve as excellent kickers on multi-species boats, with the 9.9 even offering a high-thrust model and an optional V MAX SHO®-style sport cowl for a consistent look. Add a little more power to your day with Yamaha’s portable F9.9 and F8.


PORTABLE 4 STROKES 15 HP, 20 HP 25 HP

Yamaha’s high-powered portables are redefining the expectations for portable horsepower, from the F15 and F20 to the outstanding, new F25, an IBEX Innovation Award Winner for 2017. Their single-overhead-camshaft, two-cylinder designs create power to weight that’s not only eye-opening—but in the case of the F25, it’s also class-leading and category jumping. In fact, the four-stroke 25 hp, previously a midrange outboard, is now so light, it’s jumped to our portable family. Like its new F15 and F20 siblings, the F25 has taken on signature portable advantages like an oil-retention system for leak-free, on-side storage capability, carry handles and resting pads. So whether you’re headed duck hunting with a jon boat or on the way to a lake cottage and your 14-foot aluminum boat, your Yamaha portable’s ready to go.


MID-RANGE 4-STROKE 30 HP, 40 HP.

The Yamaha 40 hp and 30 hp Midrange four strokes are known for their small size and solid performance. Light and powerful, these nimble, three-cylinder wonders are perfect for light duty on skiffs, jons and inflatables and small pontoons or aluminum fishing boats. With single-overhead camshafts and electronic fuel injection, they deliver quick starts, responsive power, quiet operation and valuable efficiency. Not only that, but they’re also both compatible with our award-winning Multi-Function Tiller Handle, which allows for variable trolling and fishing flexibility. The Yamaha Midrange 40- and 30-hp four strokes. Reliable power for any small-scale, boating application.



MID-RANGE 4-STROKE 50 HP, 60 HP, 70 HP

The Yamaha 70 hp, 60 hp and 50 hp Midrange four strokes are the go-to outboards for family, fishing and fun. Light and powerful, they sport 1-liter displacement, single-overhead-camshaft designs and electronic fuel injection. They deliver quick starts, high performance and incredible efficiency for aluminum fishing boats, pontoons and fiberglass boats. They also offer incredible trolling flexibility with Yamaha’s exclusive Variable Trolling RPM Switch. Available on the F70, F60 and F50, this allows anglers to adjust trolling speeds in 50-RPM increments. The Yamaha Midrange 70-, 60- and 50-hp four strokes. Solid choices for any boater.


MID-RANGE 4-STROKE 75 HP, 90 HP, 115 HP

The Yamaha 115 hp and the all-new 90 hp and 75 hp Midrange four strokes are reliable inshore performers. Fast and powerful, they sport 1.8-liter displacement and DOHC or SOHC designs with four valves per cylinder. This gives them exceptional volumetric efficiency and lighter weights. With 25-inch shaft options for the F115 and F90, this horsepower range offers prime power for mid-size craft, including anglers trolling large, rough water in 25-inch-transom multi-species boats. The completely surprising Yamaha Midrange 115, 90 and 75 hp four strokes. A powerful part of our lineup—and your boating experience.


IN-LINE 4 CYLINDER 4-STROKE 150 HP, 175 HP 200 HP

There’s a good reason why the legendary Yamaha F150 is the best-selling 150-horsepower four stroke of all time. Powerful, light, nimble and compact, boaters know that its proven reliability is unmatched for everything from pontoons to flats boats to deep-V hulls. That record of performance spawned a remarkable family line that continues with the F175 and F200. Now, more boaters can enjoy Yamaha’s technologically advanced I-4 line than ever before. Whether your rigging is digital or mechanical, the entire lineup is compatible with your control preference. It’s just one of the ways the I-4 line keeps getting better and better, year after year.


V-6 3.3L 200 HP

Yamaha’s legendary V6 3.3-liter F200 four stroke is a solid performer on heavier boats using 200 hp. When it first hit the water, it brought radically improved low-end and midrange torque, acceleration and top-end speed to the boating world. Its engineering was so revolutionary that it garnered not only a BoatingWeek Innovation Award, but also an Editor’s Choice Award from MotorBoating Magazine.


V-6 4.2L 225HP, 250 HP, 300 HP

Meet Yamaha’s award-winning V6 4.2-liter outboards. Fusing power, efficiency, speed and light weight, their intelligent design absolutely sets the standard for offshore performance. And now, you can add versatility to that list. With all V6 4.2L models—F300, F250 and F225—available in both mechanical and digital control, you can step up your power, without rebooting your rigging. Seventeen percent more fuel efficient at cruise RPM*, up to 73 pounds lighter than some competitors and more than 10 years of proven Yamaha reliability. That impressive resumé now includes a choice of colors for the F300—available in new pearlescent white, as well as signature Yamaha gray.


V-8 5.3L 350 HP

Yamaha’s new, purpose-built 5.3-liter 350-horsepower V8 outboard leaves the competition in its wake by delivering reliability, style and confidence when you’re taking control of the open water. Now available in signature Yamaha gray or new pearlescent white, the F350C is designed to withstand the harshest demands and backed by an unprecedented, industry-leading five-year limited warranty*. It’s truly unmatched in its horsepower class for thrust and trust.