{"product_id":"morev-5-pin-ac-cdi-ignition-module-for-50cc-125cc-atvs-dirt-bikes-5-pin-rectangular-connector-direct-fit-replacement","title":"MOREV 5-Pin AC CDI Ignition Module for 50cc–125cc ATVs Dirt Bikes — 5‑pin Rectangular Connector, Direct-Fit Replacement","description":"\u003cstrong\u003eMOREV 5-pin AC CDI Ignition Module replaces the factory AC-fired CDI on compatible 50cc–125cc horizontal 4-stroke ATVs, dirt bikes, pit bikes and go-karts.\u003c\/strong\u003e\n\n\u003cp\u003eIf your small engine uses an AC ignition system and the original CDI has failed or performs inconsistently, this MOREV replacement offers a direct-fit 5-pin rectangular connector and the standard form factor used across many horizontal 4-stroke models. It is engineered for vehicles that require an AC-fired control unit (not DC CDI units) and is widely used as a cost-effective repair option for common off-road and recreational machines.\u003c\/p\u003e\n\n\u003ch3\u003eHow will this CDI module restore engine ignition performance?\u003c\/h3\u003e\n\n\u003cp\u003eThis unit supplies the timing and high-voltage pulse to the spark plug in AC ignition systems, replacing a faulty or intermittent original module to reestablish consistent spark delivery. Installing a proper-match CDI can stop misfires, weak starts, and sudden stalls caused by ignition module failure.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eReplaces AC-specific CDI circuitry for compatible horizontal 4-stroke engines.\u003c\/li\u003e\n  \u003cli\u003eUses a standard rectangular 5-pin male connector to match OEM harnesses.\u003c\/li\u003e\n  \u003cli\u003eRe-establishes reliable ignition pulses for smoother starts and idle.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich vehicles and engines are compatible with this MOREV 5-pin CDI?\u003c\/h3\u003e\n\n\u003cp\u003eCompatibility depends on the ignition type and connector, not just the engine size or brand. This CDI is suitable for many 50cc–125cc horizontal 4-stroke ATVs, dirt bikes, pit bikes and go-karts that use an AC-fired ignition and a 5-pin rectangular plug.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eKnown compatible models include Coolster 3125B\/3125R\/3125XR8\/3050C and TaoTao Boulder B1, Cheetah, TForce, New TForce, DB17, DB14.\u003c\/li\u003e\n  \u003cli\u003eAlso fits select SSR SR70\/SR110\/SR125, Apollo RFZ\/X18\/X4\/X19 and various Kayo, Baja, Roketa, Kazuma, SunL and Jetmoto machines.\u003c\/li\u003e\n  \u003cli\u003eNot compatible with DC CDI systems, GY6 6-pin connectors, or different pin arrangements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I verify this CDI will match my original unit?\u003c\/h3\u003e\n\n\u003cp\u003eBefore ordering, compare physical and electrical details of your existing CDI to ensure a correct fit. The connector shape, pin layout, terminal positions and module dimensions must match; brand or displacement alone is not a reliable indicator.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eConfirm your original is an AC-fired CDI, not DC.\u003c\/li\u003e\n  \u003cli\u003eCompare the 5-pin rectangular connector shape and pin positions to your harness plug.\u003c\/li\u003e\n  \u003cli\u003eMeasure module size and mounting points to verify fitment in your vehicle’s frame or bracket.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I expect during installation and troubleshooting?\u003c\/h3\u003e\n\n\u003cp\u003eInstallation is typically a direct swap if the connector and mounting match. Basic wiring checks and an inspection of the stator\/coil and battery (where applicable) help ensure the issue is truly the CDI before replacement.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eDisconnect the battery and ensure the ignition is off before swapping modules.\u003c\/li\u003e\n  \u003cli\u003eInspect stator and wiring for damage; poor wiring can mimic CDI failure.\u003c\/li\u003e\n  \u003cli\u003eAfter installation, test for consistent spark and normal starting\/idle behavior.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: Riders, mechanics and DIY owners of small off-road machines who need a direct-replacement 5-pin AC CDI module for horizontal 4-stroke 50cc–125cc engines. If you have a compatible AC ignition system and a matching rectangular 5-pin connector, this MOREV module is a practical, affordable option to restore reliable ignition timing. If you’re unsure about compatibility, identify the original CDI type and connector before purchasing to avoid incorrect fitment.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this CDI compatible with my 110cc dirt bike?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Possibly—only if your bike uses an AC-fired CDI and has the same rectangular 5-pin connector and mounting dimensions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use this CDI instead of a DC unit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. This MOREV unit is specifically for AC ignition systems and won't work with DC CDI setups.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"MOREV","offers":[{"title":"Default Title","offer_id":55165905895767,"sku":"B0G6441J71","price":35.09,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/morev-front-view-cdi-module.jpg?v=1790359771","url":"https:\/\/britishgarage.co.uk\/products\/morev-5-pin-ac-cdi-ignition-module-for-50cc-125cc-atvs-dirt-bikes-5-pin-rectangular-connector-direct-fit-replacement","provider":"British Garage","version":"1.0","type":"link"}