“Outboard Won’t Start? Replace the Carb (Tohatsu 3.5HP Fix)”

If your outboard won’t start, won’t idle, or just refuses to run properly… there’s a good chance the carburettor is the problem. In this video, I take you step-by-step through replacing the carburettor on a Tohatsu 3.5HP 4-stroke outboard, including removing the old unit, fitting a new one, and explaining why modern carbs are often easier to replace than repair. Modern carburettors are effectively tamper-proof—tiny jets, sealed components, and emissions restrictions mean even a small amount of dirt can stop your engine running, and cleaning them isn’t always practical. In many cases, replacement is simply quicker, cheaper, and more reliable. ⸻ 🔧 What’s covered: * Removing the fuel tank and accessing the carb * Disconnecting fuel lines and linkages * Fitting a new carburettor * Replacing the fuel hose and adding an inline filter * Why modern carbs are difficult (or impossible) to clean * How a carburettor works (simple explanation) Sail Safe Guys, Ant & Cid XX 🇬🇧 ⛵️⛵️⛵️⛵️⛵️⛵️⛵️⛵️ =================================================== 👋 We’re Ant & Cid aboard SV Impavidus – two adventurers sailing full-time since 2018. From stormy crossings to quiet anchorages (and plenty of dad jokes), we share family-friendly stories of life at sea 🌊 🎥 New episodes every Sunday – honest & safe for all ages. 📌 Links 🛒 Shop https://www.svimpavidus.com/general-5 💻 Website https://www.svimpavidus.com/ 👌 Patreon https://www.patreon.com/SVImpavidus 🍻 Buy us a beer https://www.paypal.com/paypalme/svimpavidus 😎 Facebook https://www.facebook.com/impavidus.ontheboat.5 ▶️ Playlists https://www.youtube.com/@SVImpavidus/playlists 🌱 Our Philosophy We live by a “Pay It Forward” ethos – where those taught become teachers, and goodwill multiplies. 🙏 📣 Sponsors & Contact We’re currently looking for sponsors to support our video production 🎥 📩 Email impavidussailing@gmail.com 📺 Our Second Channel 🎶 Stunning drone footage + eclectic music YOUR DRONE TV https://www.youtube.com/channel/UCqYQUohmJ3yLq1zeRd9s3wg