All Yamaha Models 1974 Motorcycles
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Yamaha RD 350 (6-speed)

1974 · Vintage

Year1974
MakeYamaha
Displacement347.00 ccm (21.17 cubic inches)
CategoryVintage
Yamaha RD 350 (6-speed)
Yamaha RD 350 (6-speed) - Main Image
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Review

The 1974 Yamaha RD 350 (6-speed) remains a highly regarded vintage motorcycle, a pivotal model in Yamaha's "Giant Killer" RD series lineage. Building on the success of its predecessors, this two-stroke twin carved out a formidable reputation, particularly in the burgeoning sportbike segment. In an era dominated by four-stroke giants, the RD 350 offered a compelling alternative, often outperforming bikes with significantly larger displacements. Its direct competitors at the time included models like the Suzuki GT380 and the Kawasaki S2 Mach II, both vying for supremacy in the middleweight two-stroke market.

At the heart of the 1974 RD 350 was its potent 347.00 ccm (21.17 cubic inches) twin, two-stroke engine. This spirited powerplant generated 39.00 HP (28.5 kW) at 7500 RPM, delivering a surprising amount of punch for its size. Torque figures stood at 32.7 Nm (3.3 kgf-m or 24.1 ft.lbs) @ 7000 RPM, contributing to its responsive character. This combination enabled a top speed of 170.0 km/h (105.6 mph), a genuinely impressive figure for a middleweight machine of its vintage. Weighing in at a svelte 155.0 kg (341.7 pounds), the power-to-weight ratio was a key factor in its rapid acceleration. Fuel capacity was 16.00 litres (4.23 gallons), offering a decent range for spirited rides.

Riding the 1974 RD 350 offered a distinct experience. Its relatively light weight and compact chassis contributed to nimble handling, making it a joy on twisty roads. The 800 mm (31.5 inches) seat height, if adjustable to its lowest setting, provided a comfortable reach for many riders, contributing to its accessible nature. While not featuring track-focused ergonomics with aggressive rearset pegs, the riding position leaned towards a sporty yet comfortable upright stance, allowing for both spirited riding and extended journeys. The two-stroke engine's characteristic power delivery, with its noticeable "power band," demanded a skilled hand to keep it on the boil, adding to the engagement factor.

Categorized as a Vintage motorcycle, the 1974 Yamaha RD 350 (6-speed) appeals to a specific audience: enthusiasts who appreciate the raw, unadulterated feel of a classic two-stroke, and collectors seeking a piece of motorcycle history. Its reputation as a "Giant Killer" and its distinctive engine note continue to draw admirers. For those looking for a lively, engaging ride that harks back to a simpler, more visceral era of motorcycling, the RD 350 remains a compelling choice. Its blend of performance, relatively low weight, and distinctive character solidifies its place as a desirable vintage sportbike.

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Pros (Advantages)

✅ Why buy this bike?

  • The Yamaha RD 350 (6-speed) 1974 is known for its powerful 347cc two-stroke engine, providing excellent acceleration and top speeds for its time.
  • The 6-speed transmission allows for more precise gear selection, enhancing the overall riding experience and performance of the motorcycle.
  • It has a lightweight and nimble chassis, making it easy to handle and maneuver through tight corners and city streets.
  • The iconic design of the Yamaha RD 350 (6-speed) 1974 is timeless, with classic styling that appeals to vintage motorcycle enthusiasts.
  • This model is highly sought after by collectors due to its historical significance and reputation as a high-performance motorcycle from the 1970s.
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Cons (Disadvantages)

⚠️ Things to consider

  • The Yamaha RD 350 (6-speed) 1974 motorcycle is known for having a relatively high fuel consumption, which can be a downside for riders looking for more fuel-efficient options.
  • The bike's two-stroke engine tends to produce more emissions compared to four-stroke engines, which can be a concern for environmentally conscious riders.
  • The RD 350's aggressive power delivery and lightweight frame can make it a handful for inexperienced riders, potentially leading to accidents or mishaps.
  • Due to its age, finding replacement parts for the Yamaha RD 350 (6-speed) 1974 motorcycle can be challenging and expensive, especially for more obscure components.
  • The bike's suspension and braking systems may feel outdated compared to modern motorcycles, potentially compromising overall ride comfort and safety.
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Alternatives

⚖️ Comparison & Competition

  • Kawasaki H2 Mach IV (750cc): The Kawasaki H2 Mach IV was a high-performance two-stroke triple motorcycle known for its incredible speed and power, rivaling the Yamaha RD 350 in terms of performance and thrill.
  • Suzuki GT750 (Water Buffalo): The Suzuki GT750, also known as the Water Buffalo, was a two-stroke, water-cooled triple cylinder motorcycle that offered a unique riding experience with its smooth power delivery and comfortable touring capabilities.
  • Honda CB750 (Four): The Honda CB750, also known as the original superbike, was a four-stroke inline-four motorcycle that revolutionized the industry with its reliability, performance, and comfort, making it a popular choice among riders looking for a versatile and dependable machine.
  • Ducati 750SS: The Ducati 750SS was a classic Italian sportbike with a powerful V-twin engine, renowned for its agility, handling, and distinctive design, providing a different riding experience compared to the Yamaha RD 350 but equally exhilarating.
  • BMW R90S: The BMW R90S was a legendary sport-touring motorcycle with a boxer twin engine, known for its smooth power delivery, comfortable riding position, and timeless design, offering a unique blend of performance and sophistication for riders seeking a premium experience on the road
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License Class (EU)

The Yamaha RD 350 (6-speed) produces 39 HP, fitting A2 license limits (max 35 kW / 47 HP). For riders 18+.

Fuel Economy & Running Costs

Manufacturer-quoted consumption: 7.15 litres/100 km (14.0 km/l or 32.90 mpg).

⛽ Tank: 16.00 litres (4.23 gallons)

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Insurance Class

Insurance grouping for Yamaha RD 350 (6-speed) (347cc):

  • 📋 Group 8-15 — mid-range
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    Insurance Calculator (UK est.)

    Personalised premium estimate for the Yamaha RD 350 (6-speed) (UK rates):

    💡 Estimate based on UK market averages. For real quotes, compare on Compare the Market, MoneySuperMarket, GoCompare.

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    Price Estimate

    Estimated price range for the Yamaha RD 350 (6-speed) based on comparable motorcycles:

    AVERAGE
    $2,439

    📊 Category-based (20 motorcycles) · Approximate (USD)

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    Buy New & Used

    Find new and used Yamaha RD 350 (6-speed) 1974 listings:

    💡 Third-party listings. MotoBike Info is informational only.

  • 👤 Final premium varies by rider age, history, location.
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