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About Boyesen Quick Start for Keihin FCR Carburetors

Boyesen Quick Start for Keihin FCR Carburetors

  • Integrated Hot Start Assist eliminates problem 4-stroke hot start procedure
  • Tunable leak jet circuit maximizes volume of fuel and duration of fuel spray for any condition
  • Patented design stops bogging from trapped air in the system and improves throttle response
  • Improved low end performance
  • Investment cast and finished to precise tolerances
  • High volume vertical check value located in the QS3 for precise, consistent fuel metering
  • Simple bolt-on installation
  • Fits all Keihin FCR carburetors.

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