Classic motorcycle head-to-head

Yamaha RD350 vs Yamaha RD400

Yamaha RD350 scores 79/100 overall against Yamaha RD400 on 81/100. On the road: 70–73. As classics: 88–88. Overall result: Yamaha RD400.

The numbers

Category-by-category result

CategoryYamaha RD350Yamaha RD400Advantage
road
PerformanceDirect comparison of power, acceleration and usable performance across the pre-1990 classic field.78Yamaha RD400
HandlingSteering, stability, weight and real-road manners.89Yamaha RD400
BrakingDirect comparison of real stopping ability without an age allowance.67Yamaha RD400
ReliabilityEngine, electrics and general dependability when properly maintained.87Yamaha RD350
Ease of ownershipMaintenance, parts supply and access to specialist knowledge.87Yamaha RD350
ComfortRiding position, vibration and suitability for longer journeys.56Yamaha RD400
classic
StylingDesign quality, visual presence and period appeal.88Level
Historical importanceInfluence on motorcycling and importance within its era.98Yamaha RD350
Collector appealLong-term desirability among classic motorcycle enthusiasts.89Yamaha RD400
CharacterSound, feel, personality and memorable riding experience.1010Level

Choose the Yamaha RD350 if…

you value light weight, lively acceleration and a simple, exciting two-stroke riding experience.

Choose the Yamaha RD400 if…

you want sharp two-stroke performance, light handling and one of Yamaha's most entertaining road motorcycles.

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Background

History

Yamaha RD350

The Yamaha RD350 was produced from 1973–1975 and used a 347cc air-cooled two-stroke parallel twin. Within this comparison library it stands out particularly for character, historic importance, styling. It suits riders who value the qualities described in its original profile rather than choosing by specification alone.

Yamaha RD400

The Yamaha RD400 was produced from 1976–1979 and used a 398cc air-cooled two-stroke parallel twin. Within this comparison library it stands out particularly for character, handling, collector appeal. It suits riders who value the qualities described in its original profile rather than choosing by specification alone.

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Interesting details

Did you know?

Yamaha RD350

  • Its production span in this library runs from 1973 to 1975.
  • The recorded engine description is: 347cc air-cooled two-stroke parallel twin.
  • Its strongest comparison scores are character, historic importance, styling.

Yamaha RD400

  • Its production span in this library runs from 1976 to 1979.
  • The recorded engine description is: 398cc air-cooled two-stroke parallel twin.
  • Its strongest comparison scores are character, handling, collector appeal.
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Present-day appeal

Collector notes

Yamaha RD350

Collector interest is strongest where condition, originality and correct period details support the identity of the Yamaha RD350. Its library score for character is 10/10. Values and desirability can vary substantially between years, specifications and restoration quality, so individual examples should be assessed on their own evidence.

Yamaha RD400

Collector interest is strongest where condition, originality and correct period details support the identity of the Yamaha RD400. Its library score for character is 10/10. Values and desirability can vary substantially between years, specifications and restoration quality, so individual examples should be assessed on their own evidence.

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Before you buy

Buying checks

Yamaha RD350

  • Confirm the frame and engine identity match the advertised model and year.
  • Check cold starting, smoke, oil leaks and unusual mechanical noise.
  • Check the oil-injection or premix arrangement, crank seals and exhaust condition carefully.
  • Inspect the frame, wheels, brakes and suspension for wear, damage or poor repairs.
  • Verify that important model-specific parts have not been replaced with incorrect later components.
  • Review the paperwork, ownership history and any restoration invoices before purchase.

Yamaha RD400

  • Confirm the frame and engine identity match the advertised model and year.
  • Check cold starting, smoke, oil leaks and unusual mechanical noise.
  • Check the oil-injection or premix arrangement, crank seals and exhaust condition carefully.
  • Inspect the frame, wheels, brakes and suspension for wear, damage or poor repairs.
  • Verify that important model-specific parts have not been replaced with incorrect later components.
  • Review the paperwork, ownership history and any restoration invoices before purchase.

Period opposition

Historic rivals

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Final result

The verdict

Yamaha RD400 wins the direct on-the-road comparison. As classic motorcycles they also finish level. Yamaha RD400 takes the overall result after the road and classic scores are weighted equally.

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