1983
The 1983 Yamaha RD 350 B holds a significant place in the history of two-stroke motorcycles, marking the twilight years of a legendary lineage. As a direct descendant of the iconic RD series, it carried forward a reputation for accessible sportiness. In its era, it squared off against rivals like the Kawasaki H1, offering a compelling alternative for riders seeking a lightweight, high-revving machine. This particular model year represents a refined iteration, building upon decades of two-stroke development from Yamaha.
At the heart of the RD 350 B was its potent twin, two-stroke engine, displacing 347.0 ccm (21.17 cubic inches). This configuration was renowned for its power delivery, characterized by a distinct surge as the engine climbed through its rev range. Unlike four-stroke counterparts, the two-stroke design offered a lighter overall package and a more immediate, albeit narrower, power band. Riders needed to keep the engine spinning to extract its full potential, a characteristic that defined the riding experience of these machines.
Riding the RD 350 B was an engaging experience, largely due to its lightweight chassis and responsive handling. Its relatively upright stance, combined with a compact footprint, made it agile and enjoyable on twisty roads. While not featuring the track-focused ergonomics of later sportbikes, it offered a comfortable yet sporty riding position suitable for spirited road use. The simplicity of its design contributed to its light weight, which, when paired with the punchy two-stroke engine, made for an exciting and direct connection between rider and machine.
The Yamaha RD 350 B appealed to a specific demographic: riders who appreciated the raw, unadulterated thrill of a two-stroke engine and a lightweight, agile motorcycle. It wasn't about plush comfort or long-distance touring; it was about the visceral experience of a high-revving twin and the distinctive aroma of two-stroke oil. For those who understood and embraced its unique characteristics, the RD 350 B delivered an unpretentious and memorable ride, solidifying its status as a beloved classic among two-stroke enthusiasts.
✅ Why buy this bike?
• Lightweight and nimble chassis provides exhilarating handling, making it a joy on twisty roads. • Powerful two-stroke engine delivers a surprisingly strong powerband for its displacement, offering quick acceleration. • Iconic styling and a distinctive exhaust note make it a head-turner and a classic among enthusiasts. • Relatively simple mechanicals make basic maintenance and repairs accessible for DIY mechanics. • Excellent power-to-weight ratio ensures an exciting ride experience, often outperforming larger, heavier bikes. • Strong aftermarket support for parts and performance upgrades, allowing for customization and restoration.⚠️ Things to consider
• Two-stroke engine requires pre-mixing oil with fuel or relies on an oil injection system, adding complexity. • Fuel economy is typically poor compared to modern four-stroke motorcycles of similar displacement. • Emits significant exhaust smoke and has a distinct two-stroke smell, which some riders dislike. • Brakes, while adequate for its era, are not as powerful or refined as modern braking systems. • Vibration levels can be noticeable, especially at higher RPMs, leading to rider fatigue on long journeys.Rule of thumb: under 125cc / 15HP → A1, under 47HP → A2, above → A.
Estimated average for 347cc class: 45-60 mpg (4.0-5.5 L/100km)
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