Fi2000 FI2000R Plug-In Fuel Processor Sportster 921620R

Three easily identifiable lights: green – Fi2000R is adding more fuel to the air/ fuel ratio approx. 14:1; green and yellow lights – these lights will be on in unison when throttle is open more quickly and air/ fuel mixture is approx. 12.5:1; red – light comes on and stays on as long as the Fi2000R follows the fuel curve while adjusting to approx. 12.8:1 air/fuel ratio, which is where the engine will produce its best full-throttle power. Corrects lean air/fuel mixture problems; eliminates overheating, hesitation on acceleration or an uneven cruising RPM. Pre-configured from the factory for your make and model, but easy to adjust should your specific application need it. Improves rideability by smoothing out the powerband and giving the bike more throttle response. Full range of fuel adjustment (0-10 settings) across all RPM ranges. No fuel map adjustments or computer downloads required. More advanced tuning for modified bikes. Plug-in OEM style connectors. Step-by-step instructions. Waterproof circuit board