{"product_id":"morev-4-pin-dc-9-curve-adjustable-cdi-box-for-cd110-50-125cc-atv-pit-bike","title":"MOREV 4-Pin DC 9-Curve Adjustable CDI Box for CD110 50–125cc ATV \u0026 Pit Bike","description":"\n\u003cp\u003e\u003cstrong\u003eAdjustable digital ignition for compatible 4-pin DC systems.\u003c\/strong\u003e The MOREV 9-Curve CDI Box is an aftermarket ignition control module intended for selected 50cc–125cc four-stroke horizontal engines with a \u003cstrong\u003eCD110-style 4-pin DC CDI\u003c\/strong\u003e configuration. It gives riders and technicians a choice of nine predefined ignition timing maps without having to replace the CDI each time they want to evaluate a different setting.\u003c\/p\u003e\n\u003ch2\u003eWhat the 9 Ignition Curves Do\u003c\/h2\u003e\n\u003cp\u003eIgnition timing controls when the spark occurs during the engine cycle. Different timing maps change how ignition advance develops across engine operating conditions, which can affect throttle feel and power delivery. This unit provides \u003cstrong\u003enine selectable curves, numbered 1–9\u003c\/strong\u003e. Based on the MOREV curve guide, settings toward Curve 1 emphasize later-range delivery, while settings toward Curve 9 emphasize earlier response. The best choice depends on engine setup, fuel, load and riding conditions; no specific horsepower increase is guaranteed.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-button curve selection:\u003c\/strong\u003e switch among settings 1–9 using the built-in control; the selected number appears on the digital display.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSetting memory:\u003c\/strong\u003e the CDI retains the last selected curve for the next startup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustment after startup:\u003c\/strong\u003e curve selection remains accessible when the engine is running; make changes only when safely stopped and follow the supplied instructions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurpose-built 4-pin DC version:\u003c\/strong\u003e designed for compatible DC-powered CD110-style ignition wiring, not AC-powered or GY6\/CG 6-pin systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable ignition behavior:\u003c\/strong\u003e compare timing characteristics and find a curve suited to your engine configuration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCompatibility \u0026amp; Fitment\u003c\/h2\u003e\n\u003cp\u003eFor selected \u003cstrong\u003e50cc, 70cc, 90cc, 110cc and 125cc horizontal four-stroke engines\u003c\/strong\u003e using a compatible \u003cstrong\u003e4-pin DC CDI\u003c\/strong\u003e, including some ATV, pit bike, dirt bike and go-kart configurations. Selected applications shown in the supplied reference include some TaoTao, Roketa, SunL and Coolster ATV, dirt bike, pit bike and go-kart models equipped with compatible 4-pin DC ignition. These are examples, not blanket fitment claims. Model names and engine displacement alone do not confirm compatibility. Confirm DC ignition supply, connector housing, terminal positions and wire assignments against your original CDI before ordering.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: MOREV\u003c\/li\u003e\n\u003cli\u003eProduct type: adjustable digital CDI ignition module\u003c\/li\u003e\n\u003cli\u003eIgnition system: DC CDI only\u003c\/li\u003e\n\u003cli\u003eConnector: 4-pin, CD110-style application\u003c\/li\u003e\n\u003cli\u003eSelectable ignition curves: 1–9 (no setting 0)\u003c\/li\u003e\n\u003cli\u003eInterface: push-button control with digital setting display\u003c\/li\u003e\n\u003cli\u003eNominal body dimensions: 86.5 mm overall width × 70 mm housing height × 27 mm thickness; approximately 96 mm overall height including connector (measurements may vary slightly)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation \u0026amp; Safety\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eNever assume that the same connector means the same electrical configuration.\u003c\/strong\u003e AC and DC ignition modules are not interchangeable. Verify wiring, ground, pickup signal, ignition coil compatibility and original CDI type before installation. The supplied MOREV wiring reference shows the 4-pin DC plug from the terminal side, with position 1 for pickup\/trigger signal, position 2 for ignition coil output, position 3 for ground and position 4 for battery +12V input. \u003cstrong\u003eUse this as a product-specific reference and verify connector orientation and your vehicle wiring before installation.\u003c\/strong\u003e Disconnect power before fitting the module. An incorrect connection can prevent starting or damage electrical parts. For uncertain applications, consult a qualified technician.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWill this work with an AC CDI ignition system?\u003c\/h3\u003e\u003cp\u003eNo. This product is the 4-pin DC version and requires compatible DC wiring.\u003c\/p\u003e\n\u003ch3\u003eDoes it have a setting 0?\u003c\/h3\u003e\u003cp\u003eNo. The selectable curve settings are 1 through 9.\u003c\/p\u003e\n\u003ch3\u003eDoes it remember my selection?\u003c\/h3\u003e\u003cp\u003eYes. The last selected curve is retained after power-off.\u003c\/p\u003e\n\u003ch2\u003eShipping\u003c\/h2\u003e\u003cp\u003eShips from Guangzhou, China. Available destinations, shipping charges and delivery estimates are shown at checkout. See our \u003ca href=\"\/pages\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e.\u003c\/p\u003e","brand":"MOREV","offers":[{"title":"Default Title","offer_id":67940049060075,"sku":"MCDI014","price":89.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0859\/8283\/9019\/files\/morev-9curve-4pin-dc-main.jpg?v=1791621020","url":"https:\/\/shop.morevracing.com\/products\/morev-4-pin-dc-9-curve-adjustable-cdi-box-for-cd110-50-125cc-atv-pit-bike","provider":"MOREV Racing","version":"1.0","type":"link"}