Classic motorcycle head-to-head

Yamaha FS1-E vs Kawasaki AR50

Yamaha FS1-E scores 77/100 overall against Kawasaki AR50 on 73/100. On the road: 55–58. As classics: 98–88. Overall result: Yamaha FS1-E.

The numbers

Category-by-category result

CategoryYamaha FS1-EKawasaki AR50Advantage
road
PerformanceDirect comparison of power, acceleration and usable performance across the pre-1990 classic field.33Level
HandlingSteering, stability, weight and real-road manners.78Kawasaki AR50
BrakingDirect comparison of real stopping ability without an age allowance.46Kawasaki AR50
ReliabilityEngine, electrics and general dependability when properly maintained.77Level
Ease of ownershipMaintenance, parts supply and access to specialist knowledge.87Yamaha FS1-E
ComfortRiding position, vibration and suitability for longer journeys.44Level
classic
StylingDesign quality, visual presence and period appeal.99Level
Historical importanceInfluence on motorcycling and importance within its era.108Yamaha FS1-E
Collector appealLong-term desirability among classic motorcycle enthusiasts.109Yamaha FS1-E
CharacterSound, feel, personality and memorable riding experience.109Yamaha FS1-E

Choose the Yamaha FS1-E if…

you want the defining British 1970s sports moped, with huge nostalgia, lively styling and an unforgettable place in learner-bike culture.

Choose the Kawasaki AR50 if…

you want sporty Kawasaki styling, a lively small two-stroke and one of the most desirable post-restriction British 50s.

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Background

History

Yamaha FS1-E

The Yamaha FS1-E was produced from 1973–1977 and used a 49cc air-cooled two-stroke single. Within this comparison library it stands out particularly for historic importance, collector appeal, character. It suits riders who value the qualities described in its original profile rather than choosing by specification alone.

Kawasaki AR50

The Kawasaki AR50 was produced from 1981–1989 and used a 49cc air-cooled two-stroke single. Within this comparison library it stands out particularly for styling, collector appeal, character. 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 FS1-E

  • Its production span in this library runs from 1973 to 1977.
  • The recorded engine description is: 49cc air-cooled two-stroke single.
  • Its strongest comparison scores are historic importance, collector appeal, character.

Kawasaki AR50

  • Its production span in this library runs from 1981 to 1989.
  • The recorded engine description is: 49cc air-cooled two-stroke single.
  • Its strongest comparison scores are styling, collector appeal, character.
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Present-day appeal

Collector notes

Yamaha FS1-E

Collector interest is strongest where condition, originality and correct period details support the identity of the Yamaha FS1-E. Its library score for historic importance 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.

Kawasaki AR50

Collector interest is strongest where condition, originality and correct period details support the identity of the Kawasaki AR50. Its library score for styling is 9/10. 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 FS1-E

  • 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.

Kawasaki AR50

  • 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

Kawasaki AR50 wins the direct on-the-road comparison. Yamaha FS1-E wins the classic-motorcycle comparison. Yamaha FS1-E takes the overall result after the road and classic scores are weighted equally.

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