Classic and Classy Motorcycles Ltd

Vintage and Classic Motorcycle Importers

1974 Yamaha RD250 250cc Project Barnfind

Rediscovering the 1974 Yamaha RD250: A Barn Find Project

The 1974 Yamaha RD250 represents a pivotal moment in the evolution of motorcycle design and technology. Discovered as a barn find, this project motorcycle offers a unique opportunity to restore a piece of two-wheeled history. The RD250, known for its agility, reliability, and distinctive two-stroke performance, became a benchmark in the quarter-liter class, embodying Yamaha's commitment to innovation and excellence in the early 1970s.

Historical Context: In the era dominated by four-stroke engines, Yamaha's RD series stood out with its powerful and efficient two-stroke engines. The RD250, launched in the early 70s, was at the forefront of this revolution, offering an unparalleled mix of performance and simplicity for its class. It was designed to appeal to a broad audience, from daily commuters to weekend racers, showcasing Yamaha's versatility in motorcycle manufacturing.

Motorcycle Specification Details:

Engine: 247cc air-cooled, two-stroke, parallel twin
Power: 30 horsepower at 7,500 rpm
Transmission: 5-speed manual gearbox
Brakes: Single disc brake at the front and drum brake at the rear
Weight: Approximately 352 pounds (dry)

Performance Metrics:

Top Speed: Around 100 mph
Acceleration: 0-60 mph in about 7 seconds

Technical Advancements & Style: The RD250 was notable for its adoption of reed valve technology, a significant advancement that improved engine performance and efficiency. Its sleek, aerodynamic design and lightweight construction enhanced its appeal, making it a popular choice among younger riders. The integration of a front disc brake was also a forward-thinking feature, offering improved stopping power over the drum brakes commonly used at the time.

Evolution of the Model: Throughout its production run, the RD250 underwent several updates aimed at refining its performance and rider experience. These included improvements to the suspension system, carburetion, and exhaust, further solidifying its position as a leading motorcycle in its category.

Cultural Impact & Racing Heritage: The RD250 enjoyed a vibrant racing heritage, particularly in lightweight classes, where its power-to-weight ratio and handling characteristics shone. It also played a significant role in popularizing two-stroke technology, influencing a generation of riders and manufacturers.

Competitors: The Yamaha RD250 faced competition from a variety of manufacturers, including Suzuki's GT250 and Kawasaki's KH250. Despite the fierce competition, the RD250's unique blend of performance, reliability, and style helped it carve out a distinct place in motorcycle history.

The restoration of a 1974 Yamaha RD250 barn find is more than a project; it's a journey into the past, offering a chance to revive a motorcycle that captured the essence of an era. For enthusiasts and restorers, the RD250 represents the thrill of discovery and the satisfaction of bringing a classic back to life.