Cost-effective, bolt-on upgrade that allows accelerator pump fuel spray to be adjusted simply with the turn of a screwPatent-pending designAccelerator pump check valve stops bogging and coughingAdjustable fuel jet to control accelerator pump sprayPrecision single hole sprayer tip directs and injects the fuel more efficiently than stockA fine high-speed stream of fuel atomizes faster to improve roll-on accelerationInstant throttle responseImproves low end performance and fuel economyEasy bolt-on; no modifications necessary