{"product_id":"innova-inductive-timing-light-3551-slim-rotatable-barrel-skip-circuit-rpm-test-to-9-990-rpm","title":"Innova Inductive Timing Light 3551 — slim rotatable barrel, skip-circuit RPM test to 9,990 RPM","description":"\u003cp\u003e\u003cstrong\u003eThe Innova 3551 is an inductive timing light that reads ignition timing, diagnoses no-spark issues, and performs a patented skip-circuit RPM test up to 9,990 RPM.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe Innova 3551 combines a slim, rotatable barrel and a protective hand guard to make timing checks faster and safer. It works across most ignition configurations — from traditional points and condenser systems to modern DIS and computer-controlled ignitions — and adds a skip-circuit feature to capture timing at high engine speeds. Technicians and DIYers get clearer alignment on timing marks and a quick method for confirming electronic advance\/retard behavior without complex hookups.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this tool help me set ignition timing accurately?\u003c\/h3\u003e\n\u003cp\u003eThe 3551 clamps around a spark plug wire to detect firing pulses and converts them into a visible flash synchronized with engine revolutions. That flash lights the timing marks on the crank pulley so you can precisely position the distributor or confirm TDC. Its rotating barrel improves sightlines for tight engine bays.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInductive pickup reads spark pulses without direct electrical connections\u003c\/li\u003e\n  \u003cli\u003eVisible strobe aligns with timing marks for precise adjustment\u003c\/li\u003e\n  \u003cli\u003eRotating slim barrel lets you aim at hard-to-see timing notches\u003c\/li\u003e\n  \u003cli\u003eProtective hand guard aids steady, one-handed operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan it diagnose ignition problems or intermittent no-spark conditions?\u003c\/h3\u003e\n\u003cp\u003eYes — by monitoring the presence and consistency of ignition pulses the 3551 helps pinpoint missing or irregular sparks. If the timing light shows no flash or an inconsistent rhythm, that indicates a wiring, coil, or module issue that needs further inspection. This makes it quicker to distinguish between mechanical timing faults and electrical ignition failures.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDetects absence of spark on a specific cylinder from the inductive pickup\u003c\/li\u003e\n  \u003cli\u003eReveals inconsistent pulse timing that suggests ignition misfires\u003c\/li\u003e\n  \u003cli\u003eSimplifies whether a problem is electrical vs. mechanical\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat engines and ignition systems are supported?\u003c\/h3\u003e\n\u003cp\u003eThe Innova 3551 is compatible with a wide range of vehicle types and ignition setups, including older conventional systems and modern DIS, electronic, and computer-controlled ignitions. It’s built to work with domestic and import models, so you can use it on most passenger cars, light trucks, and many small engines that rely on spark ignition.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWorks with conventional points-style and electronic ignitions\u003c\/li\u003e\n  \u003cli\u003eSupports distributorless ignition systems (DIS)\u003c\/li\u003e\n  \u003cli\u003eCompatible with computer-controlled ignition modules on many vehicles\u003c\/li\u003e\n  \u003cli\u003eDesigned for domestic and imported engine applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat is the patented Skip Circuitry Test and when will I use it?\u003c\/h3\u003e\n\u003cp\u003eThe Skip Circuitry Test captures timing at higher RPMs where a steady flash might be hard to see at idle. The 3551’s patented circuitry skips selected pulses, producing a strobe effect that makes fast-running ignition events visible up to 9,990 RPM. This is useful when diagnosing advanced timing behavior or confirming vacuum\/centrifugal advance under load.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSkip mode reduces visible pulse rate to track high-RPM timing\u003c\/li\u003e\n  \u003cli\u003eRated up to 9,990 RPM for accurate high-speed checks\u003c\/li\u003e\n  \u003cli\u003eHelpful for verifying electronic advance\/retard and dynamic timing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: The Innova 3551 is ideal for home mechanics, professional technicians, and fleet maintenance personnel who need a reliable, easy-to-use timing light that handles both vintage and modern ignition systems. If you adjust timing, troubleshoot ignition complaints, or confirm advance mechanisms without removing parts, this tool provides the visibility and RPM range required for effective diagnostics.\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: Does the Innova 3551 work on distributorless ignition systems?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The 3551 supports DIS, conventional, electronic, and many computer-controlled ignition systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What RPM range does the skip-circuitry test cover?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The patented skip-circuitry mode captures timing information up to 9,990 RPM.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Innova","offers":[{"title":"Default Title","offer_id":48083121569950,"sku":"B000EVYH72","price":62.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/innova-3551-front-view.jpg?v=1785825568","url":"https:\/\/northtrailauto.ca\/products\/innova-inductive-timing-light-3551-slim-rotatable-barrel-skip-circuit-rpm-test-to-9-990-rpm","provider":"North Trail Auto","version":"1.0","type":"link"}