Welcome to Vallely Sport & Marine, North Dakota's only Five Star Certified, and Boating Industry Top 100 sport & marine group offering two premier locations in Bismarck, North Dakota and Minot, North Dakota.
We specialize in sales of boats, pontoons, ATVs, motorcycles, snowmobiles, and personal watercraft (PWC). In both of our showrooms you will find the best boat and pontoon brands in the industry; Sea Ray, Bayliner, Lund, Skeeter, Bennington, Moomba, MasterCraft, and Yamaha. You will also find the leading powersports brands: Polaris, Ski-doo, Sea-Doo, and Yamaha Motor Corporation, USA.
Our Parts & Accessories departments are fully stocked with marine and powersports accessories to make your experience the best. Our trained Service Department offers top notch customer service, full maintenance, and repair of new and pre-owned boats, all-terrain vehicles (ATVs), motorcycles, personal watercraft (PWC), and snowmobiles.
Vallely Sport & Marine is celebrating over 39 years in business, serving all of North Dakota, Northern South Dakota and Eastern Montana.
The 2027 Yamaha 205SD stands out with a single supercharged 4-cylinder, 4-stroke, Super Vortex High Output Yamaha Marine Engine that delivers immediate acceleration and responsive handling on the water. The powerplant rides on a compact, well-balanced platform measured at 20.08 feet in length with an 8.5-foot beam, giving the Yamaha 205SD a confident footprint for docking and cornering alike. With a dry weight of 3095 pounds, this model pairs performance with stability, making it a purposeful choice for both seasoned skippers and first-time boaters. On the water, a 40-gallon fuel tank keeps you going between stops, while a maximum weight capacity of 1900 pounds ensures you can bring along gear and guests for a full day of activity. The hull design features a 1.58-foot draft and a 20-degree dead rise to balance smooth planing with a steady ride across chop. The Yamaha 205SD accommodates up to 10 people, offering ample space for a crew to enjoy sun-soaked days and casual excursions, all while a 1812 cubic centimeter displacement engine remains compact and efficient. For storage and everyday practicality, the model provides a generous 502 gallons of storage capacity to stow life jackets, gear, and essentials. The combination of premium engineering, precise fit, and robust construction makes this boat a compelling choice for weekend voyages and high-spirited water activities, where performance meets thoughtful design. View the Yamaha 205SD at Vallely Sport & Marine.