Assuming everything is installed and adjusted correctly, your Grom should run like a stock. Adjusting the idle of the bike is the hardest part. You may have to adjust your idle air screw or throttle body stop screw if you have changed out your throttle body. If you’ve got our SUPER 125 / 150 kit, feel free to change this to 11,000 RPM.Īt the moment you’ve gone through the base settings and can now turn the bike on. You can change this at any time but might as well change it before you start your bike. If your reading won’t go to 100%, you may have to adjust the throttle stop screw on the throttle body (please keep in mind that this does affect idling). Look at the controller display and make sure the full range of TPS is going from 0% -> 100%. You can play with your throttle when the bike is OFF. Start the Throttle Position Sensor simulation to ensure your TPS is set to 0% at idle. When you first start your bike, you should leave this ON so you can set your FUEL BASE. If you purchased the AF1 Wideband module, turning this ON will activate closed loop. Keep in mind this setting will most likely adjust as you start tuning. Larger injectors require less fuel base as they flow differently. This adjustment depends on which injector you have chosen. I like to set my base fuel setting at 75% to start (because we’re using the PCX150 injector). If you’re using the ARacer, I can safely assume you’ve changed your injector in some way. You’ll need to figure out your base fuel setting before you start the bike. This guide also assumes that you have installed the unit correctly. Please refer to your instruction booklet that came with your system for photo reference. This guide will focus on the popular ARacer RC Mini Plus 2 and RC MINI 5. I assure you it’s not as hard as it sounds. If you’re new to tuning, playing with an EFI system can be quite intimidating.
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