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With a wider power band compared to other two-stroke models, the RD350 offered smoother handling in urban traffic. Check out additional motorcycle images.The 1974 Yamaha RD350 motorcycle was a revolutionary model, known for its lightweight frame and exceptional power relative to its compact size.
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Nippon Gakki, initially a producer of musical instruments, ventured into motorcycle manufacturing with a small model following World War II.
The model was derived from the German DKW 125-cc two-stroke single, which also inspired the post-war BSA Bantam and Harley-Davidson S-125 motorcycles. Like its counterparts, it thrived during the post-war sales surge. It was named "Yamaha" in tribute to Nippon's founder.
During the 1950s, Yamaha achieved notable success in racing. The acquisition of Showa later in the decade further enhanced its engineering expertise, particularly in rotary valve technology.
Yamaha expanded its lineup with larger twin-cylinder models, reaching up to 305 cc, all powered by two-stroke engines. The largest of these eventually led to the development of the 1974 Yamaha RD350 motorcycle.
By that time, Yamaha had also ventured into four-stroke twins, exemplified by the 650-cc XS1. While this model saw numerous iterations over the years, the company remained committed to two-stroke technology for the time being.
The 1974 Yamaha RD350 marked a significant achievement in motorcycle design, boasting an impressive power-to-weight ratio and a broader power band, thanks to reed-valve induction. This made it not only fast but also highly manageable in urban traffic.
Following the initial models, smaller versions with engines as compact as 125 cc were introduced, and by 1976, the 350 cc engine was upgraded to 400 cc.
However, the era of two-stroke street bikes was short-lived, as stringent U.S. emission regulations began to phase them out, leading to the discontinuation of the RD series by 1980.
Proceed to the next page to explore additional images of the 1974 Yamaha RD350 motorcycle.
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1974 Yamaha RD350 Pictures
After the 1974 Yamaha RD350, Yamaha introduced two-stroke models with engine capacities of 125 cc and 400 cc.The 1974 Yamaha RD350 featured a 350-cc two-stroke engine, a configuration that was phased out by 1980 due to stringent U.S. emission regulations.
Yamaha's reed-valve induction system was branded as "Torque Induction."
The RD350's lightweight frame combined with its potent two-stroke twin engine delivered impressive speed for its class, while the Torque Induction system ensured smooth handling in traffic.
The engine's redline reached an impressive 8500 rpm.
Given the RD350's high-speed capabilities, the inclusion of a front disc brake was a highly appreciated addition.Explore more captivating motorcycle articles and images by visiting:
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- How Motorcycles Work
- Other Classic Motorcycles
