{"product_id":"compufire-elite-ignition-module-kit-single-dual-fire-hi-perf-1970-1999-bt-1-139-10006","title":"Compufire Elite Ignition Module Single\/Dual Fire - Harley Big Twin 1970-1999","description":"\u003c!-- vt:seo-start --\u003e\n\u003cdiv class=\"vt-brand-bio\" style=\"background:#f6f6f6;border-left:4px solid #c8102e;padding:14px 18px;margin:0 0 20px;border-radius:4px;\"\u003e\n\u003ch2 style=\"margin:0 0 6px;font-size:1.05em;\"\u003eAbout Compufire\u003c\/h2\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.6;\"\u003eCompufire parts and accessories are stocked at Vtwinbikers for Harley-Davidson and Indian Motorcycle applications. Every Compufire item we list is new and sourced through authorized distribution. If you are not certain a part matches your year and model, use Shop by Bike or email our team before you order and we will confirm fitment first.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"line-height:1.65;\"\u003eUnleash the full potential of your carbureted Harley Big Twin with the Compufire Elite Ignition Module. This high-performance module delivers precise spark timing and allows for custom tuning to match your engine's setup.\u003c\/p\u003e\n\u003ch3 style=\"margin:20px 0 6px;\"\u003eWhy riders pick this\u003c\/h3\u003e\u003cul style=\"padding-left:20px;margin:0 0 16px;\"\u003e\n\u003cli style=\"margin:3px 0;\"\u003eSelectable advance curves for custom engine tuning\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eAdjustable RPM limiter for engine protection\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eStatic timing LED for easy installation\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eCompact design fits under the timing cover\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eReliable spark for carbureted V-twin performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDesigned for riders who demand more from their V-twin, the Compufire Elite Ignition Module is a direct upgrade for 1970-1999 Harley Big Twin models. It replaces the factory ignition system, providing a robust and reliable spark crucial for performance. Whether you're chasing more horsepower or a smoother idle, this module gives you the control to fine-tune your engine's characteristics.\u003c\/p\u003e\u003ch3\u003ePrecision Tuning for Your V-Twin\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSelectable advance curves to optimize timing for various engine builds\u003c\/li\u003e\n\u003cli\u003eAdjustable RPM limiter to protect your engine at higher revs\u003c\/li\u003e\n\u003cli\u003eStatic timing LED for straightforward installation without a timing light\u003c\/li\u003e\n\u003cli\u003eCompact design with all electronics fitting under the timing cover\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eEngineered for Performance and Simplicity\u003c\/h3\u003e\u003cp\u003eThis Compufire Elite Ignition Module is engineered for easy installation, featuring a static timing LED that eliminates the need for a separate timing light. Its versatile single\/dual fire mode and range of advance curves make it suitable for a variety of carbureted Big Twin setups. Pair it with a high-output coil and performance spark plug wires for a complete ignition system overhaul.\u003c\/p\u003e\n\u003ch3 style=\"margin:20px 0 6px;\"\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Compufire\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part #:\u003c\/strong\u003e 21835\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 694342547653\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 5 in L × 2 in W × 8 in H\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1 lbs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:22px 0 8px;\"\u003eCommon questions\u003c\/h3\u003e\u003cdiv class=\"vt-faq\"\u003e\n\u003cdiv style=\"margin:0 0 12px;\"\u003e\n\u003cp style=\"margin:0 0 3px;font-weight:600;\"\u003eWill this ignition module work with my fuel-injected Harley?\u003c\/p\u003e\n\u003cp style=\"margin:0;line-height:1.6;\"\u003eNo, this Compufire Elite Ignition Module is specifically designed for carbureted Harley-Davidson Big Twin models from 1970-1999. It is not compatible with EFI systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:0 0 12px;\"\u003e\n\u003cp style=\"margin:0 0 3px;font-weight:600;\"\u003eDo I need a special tool to set the timing during installation?\u003c\/p\u003e\n\u003cp style=\"margin:0;line-height:1.6;\"\u003eNo, this module features a built-in static timing LED that simplifies the installation process, allowing you to set the timing without needing an external timing light.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:0 0 12px;\"\u003e\n\u003cp style=\"margin:0 0 3px;font-weight:600;\"\u003eIs this a single or dual fire ignition?\u003c\/p\u003e\n\u003cp style=\"margin:0;line-height:1.6;\"\u003eThis Compufire Elite Ignition Module offers both single and dual fire modes, giving you the flexibility to choose the best option for your V-twin setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"vt-confidence\" style=\"border-top:1px solid #e5e5e5;margin:24px 0 0;padding:16px 0 0;font-size:0.92em;line-height:1.6;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOrdering from Vtwinbikers\u003c\/h3\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli\u003eBrand new, sourced through authorized US distribution — never used, never grey-market.\u003c\/li\u003e\n\u003cli\u003eNot sure it fits? Use \u003cstrong\u003eShop by Bike\u003c\/strong\u003e to filter by your year and model, or email us and we will confirm before you order.\u003c\/li\u003e\n\u003cli\u003eHarley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/vtwinbikers.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Electrical\",\"item\":\"https:\/\/vtwinbikers.com\/collections\/all\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Compufire\",\"item\":\"https:\/\/vtwinbikers.com\/collections\/compufire\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Compufire Elite Ignition Module Single\/Dual Fire - Harley Big Twin 1970-1999\",\"item\":\"https:\/\/vtwinbikers.com\/products\/compufire-elite-ignition-module-kit-single-dual-fire-hi-perf-1970-1999-bt-1-139-10006\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Will this ignition module work with my fuel-injected Harley?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No, this Compufire Elite Ignition Module is specifically designed for carbureted Harley-Davidson Big Twin models from 1970-1999. It is not compatible with EFI systems.\"}},{\"@type\":\"Question\",\"name\":\"Do I need a special tool to set the timing during installation?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No, this module features a built-in static timing LED that simplifies the installation process, allowing you to set the timing without needing an external timing light.\"}},{\"@type\":\"Question\",\"name\":\"Is this a single or dual fire ignition?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"This Compufire Elite Ignition Module offers both single and dual fire modes, giving you the flexibility to choose the best option for your V-twin setup.\"}}]}\u003c\/script\u003e\n\u003c!-- vt:seo-end --\u003e","brand":"Compufire","offers":[{"title":"Default Title","offer_id":53035871731823,"sku":"139-10006","price":430.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/output_1ec2936b-dc25-48a4-bfd8-6addb2b68aee.png?v=1779563484","url":"https:\/\/vtwinbikers.com\/products\/compufire-elite-ignition-module-kit-single-dual-fire-hi-perf-1970-1999-bt-1-139-10006","provider":"Vtwinbikers","version":"1.0","type":"link"}