Jetting CR125 Shifter Kart

1. Download and open the app, then allow location for live weather or choose to enter temperature, humidity, and elevation manually. 2. Create a kart profile by selecting CR125, carb model, fuel type, and premix ratio to set your baseline. 3. Fetch or input current weather, then review the recommended main jet, pilot jet, needle clip position, and air screw starting point. 4. Install the suggested jets, warm up the engine, and do a short test session; note throttle response and adjust richer or leaner as needed. 5. Save the setup with track name and conditions, compare with previous sessions, and reuse it when similar weather returns.