{"product_id":"eopoayi-pit-bike-wiring-harness-kit-electric-start-50-125cc-complete-replacement-with-cdi-regulator","title":"EOPOAYI Pit Bike Wiring Harness Kit — Electric-Start 50–125cc Complete Replacement with CDI \u0026 Regulator","description":"\u003cp\u003e\u003cstrong\u003eEOPOAYI Pit Bike Wiring Harness Electric Start kit is a complete replacement wiring system designed to restore ignition, charging, and electric-start functions on 50–125cc four-stroke pit bikes and ATVs.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your small-displacement dirt bike or quad has intermittent starting, dead charging, or damaged wiring, this EOPOAYI kit supplies the major electrical components needed for a like-new electrical system. The package groups the main loom with ignition coil, CDI box, solenoid relay, rectifier\/regulator, handlebar switch, key switch, spark plug, and mounting ties so you can replace aged or faulty parts in one service session.\u003c\/p\u003e\n\n\u003ch3\u003eWhat bikes and ATVs will this wiring harness fit?\u003c\/h3\u003e\n\u003cp\u003eThis harness is made to suit many popular small four-stroke models from 50cc up to 125cc. It’s compatible with a range of Chinese and budget-brand machines, plus several common aftermarket and OEM-style pit bikes and quads.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits 50cc, 70cc, 90cc, 110cc and 125cc 4-stroke pit bikes and ATVs\u003c\/li\u003e\n  \u003cli\u003eKnown fitments include TaoTao, SSR, Apollo, Coolster, Sunl, Lifan, Loncin and similar models\u003c\/li\u003e\n  \u003cli\u003eAlso compatible with common NC50-style mini-motorbikes and small quad platforms\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich parts are included and how do they help restore functionality?\u003c\/h3\u003e\n\u003cp\u003eThe kit bundles each core electrical component so you can address starting, ignition timing, and charging at once rather than chasing individual failures. Each piece is intended to meet standard specifications for interchange with common 4-stroke small engines.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMain wire harness\/loom to route electrical circuits and connectors\u003c\/li\u003e\n  \u003cli\u003eIgnition coil and A7TC spark plug to deliver reliable spark\u003c\/li\u003e\n  \u003cli\u003e5-pin AC CDI box for ignition control with electric-start compatibility\u003c\/li\u003e\n  \u003cli\u003eSolenoid relay, voltage regulator\/rectifier, ignition key switch and handlebar switch included\u003c\/li\u003e\n  \u003cli\u003eTen zip ties and mounting points for tidy installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow difficult is installation and what should I prepare?\u003c\/h3\u003e\n\u003cp\u003eInstallation requires basic electrical knowledge and mechanical access to the engine, battery area, and handlebar wiring. Follow the supplied wiring diagram closely, verify each connector match, and use proper tools—incorrect assembly can prevent operation and risk damage.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRecommended: examine product photos and compare connector shapes before buying\u003c\/li\u003e\n  \u003cli\u003eUse a multimeter to verify continuity and correct voltage during installation\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is advised if you’re unfamiliar with CDI systems or regulator wiring\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The EOPOAYI wiring harness kit is aimed at riders, repair shops and home mechanics working on budget-friendly pit bikes and small ATVs who need a full electrical replacement instead of piecemeal fixes. It’s practical for refurbishing a project bike, returning a non-starting quad to the road, or stocking parts for common small-engine repairs. Buyers should confirm fitment against their machine’s connector types and wiring diagram, and prepare for a methodical install or professional help if wiring experience is limited.\u003c\/p\u003e\n\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this harness work on my 125cc TaoTao ATV?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—this EOPOAYI kit is designed to fit many 125cc TaoTao models, but verify connector shapes and wiring diagram before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I install the kit myself?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: If you have basic electrical skills and tools, yes; otherwise professional installation is recommended to avoid miswiring.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"EOPOAYI","offers":[{"title":"Default Title","offer_id":48085928411294,"sku":"B0F6LKQ7YY","price":43.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/eopoayi-wiring-harness-front-packaging.jpg?v=1785880963","url":"https:\/\/northtrailauto.ca\/products\/eopoayi-pit-bike-wiring-harness-kit-electric-start-50-125cc-complete-replacement-with-cdi-regulator","provider":"North Trail Auto","version":"1.0","type":"link"}