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