FSE 250R Rojo EFI Bluetooth device allows users to adjust the idle setting, and change between 3 pre-programmed tuning MAPS.
The new APP (Dec 2019) allows for a "richer" setting of the fuel air mixture.
1) Download ROJO tuning app here.... https://gpxmoto.com/index.php?route=product/product&path=5&product_id=63 in the "Manuals & Parts Diagrams" section.
2) Allow Bluetooth on your Android Device
3) Place the Rojo Tuner into the left side of the throttle body
4) Search and connect Bluetooth device and you password 333333 to make connection
5) Modify idle speed, and select program maps.