1. After the CDI is powered on, the digital display shows the ignition curve selected before the last shutdown. 2. Pressing the button cycles through numbers 0–9 on the digital display. Number 0 disables ignition (speed-limited to 6000 rpm), while numbers 1–9 correspond to nine adjustable ignition timing curves. Curve 1 represents the stock ignition timing; curves 1–9 support unrestricted engine speed. After installation, the curve can be adjusted to suit the motorcycle engine’s requirements. 3. The selected ignition curve is saved in memory and remains displayed after power-off. 4. Ignition curve 1 provides a relatively conservative ignition timing, while curve 9 provides an advanced ignition timing. The timing difference between adjacent curves is approximately 1–2 degrees. 5. Select the appropriate ignition curve based on riding conditions, track characteristics, or road surface. Type: Motorcycle Digital Adjustable CDI Ignition Box Connector Type: 4-Pin CDI Box Compatible Models: CG125, CG-125, 150cc, 200cc motorcycles Color: Blue & Black Material: Plastic Package Contents: 1 × Motorcycle DC CDI Ignition Box Note: Color appearance may vary slightly due to lighting conditions and screen settings. Measurement tolerance: ±1–3 cm.