Yamaha DS 7 1971 - Specifications & Review

Introducing the 1971 Yamaha DS 7, a classic gem that perfectly encapsulates the spirit of the early '70s motorcycle culture. As Yamaha's entry into the lightweight street bike segment, the DS 7 was designed to appeal to a wide audience of riders, from everyday commuters to weekend thrill-seekers. With its sleek lines and vibrant color options, this motorcycle stands as a testament to Yamaha's innovative engineering and commitment to performance. The DS 7 quickly gained a dedicated following among enthusiasts, thanks to its combination of style, agility, and a spirited riding experience.

At the heart of the Yamaha DS 7 lies a robust 247cc twin-cylinder, two-stroke engine, which delivers a lively 24 horsepower at 7,500 RPM. This peppy powerplant offers an exhilarating ride, propelling the bike to a top speed of 140 km/h (87 mph). The air-cooled engine features a 7.1:1 compression ratio and a perfectly balanced bore and stroke of 54mm, ensuring a responsive throttle and lively acceleration. Coupled with a 5-speed gearbox and chain final drive, the DS 7 offers smooth and precise shifting, making it a joy to navigate through winding roads or urban settings. Riders can expect an engaging experience, as the DS 7’s lightweight frame—tipping the scales at just 146 kg (321.9 lbs)—allows for nimble handling and exceptional maneuverability.

The Yamaha DS 7 is more than just a powerful engine; it boasts key features that enhance both safety and comfort. The expanding brake system on both the front and rear wheels provides dependable stopping power, instilling confidence in riders as they tackle various terrains. Additionally, with a fuel capacity of 12 liters (3.17 gallons), the DS 7 offers a commendable range, allowing for longer rides without frequent stops at the gas station. Its classic styling is accented by a simple yet effective design, making it a bike that resonates with nostalgia while still offering modern riding capabilities.

Pros:

1. Lightweight and Nimble: The DS 7’s low weight contributes to its agile handling, making it a perfect choice for both city commuting and spirited rides.
2. Peppy Performance: With its lively two-stroke engine, riders can enjoy an exhilarating acceleration and a thrilling top speed.
3. Classic Aesthetics: The striking design and classic styling appeal to vintage motorcycle enthusiasts, making it a sought-after model in the classic bike market.

Cons:

1. Limited Power for Long Trips: While fun for short rides, the 247cc engine may lack the power needed for extended highway cruising or carrying heavier loads.
2. Two-Stroke Maintenance: The two-stroke engine may require more frequent maintenance compared to modern four-stroke engines, which could deter some riders.
3. Basic Suspension: The suspension system, while adequate for its time, may not offer the same level of comfort and adjustability found in contemporary motorcycles.