{"product_id":"3f0-87122-1-carburetor-repair-kit-for-mercury-tohatsu-nissan","title":"3F0-87122-1 Carburetor Repair Kit for Mercury Tohatsu Nissan | JLM Marine","description":"\u003ch2\u003eCarburetor Repair Kit – Fits Mercury Mariner Marine 2-Stroke 2.5 HP 3.5 HP Outboard\u003c\/h2\u003e\n\n\u003cp\u003eThis carburetor repair seal kit is engineered for \u003cstrong\u003eMercury Mariner Marine 2-stroke outboards rated at 2.5 HP and 3.5 HP\u003c\/strong\u003e. It provides essential gaskets, seals, and components needed to restore proper carburetor function and fuel delivery.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDirect Replacement:\u003c\/strong\u003e OEM Part Number \u003cstrong\u003e3F0-87122-1\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eComplete seal and gasket set for carburetor overhaul\u003c\/li\u003e\n  \u003cli\u003eDesigned for 2-stroke Mercury Mariner outboards\u003c\/li\u003e\n  \u003cli\u003eRestores proper fuel\/air mixture and engine performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Cross-Reference\u003c\/h2\u003e\n\n\u003cp\u003eUse this table to confirm equivalent part numbers across OEM and aftermarket brands.\u003c\/p\u003e\n\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eBrand\u003c\/th\u003e\n      \u003cth\u003ePart Number\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMercury \/ Tohatsu \/ Nissan\u003c\/td\u003e\n      \u003ctd\u003e3F0-87122-1\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eCompatible Engine Models\u003c\/h2\u003e\n\n\u003cp\u003eConfirm your engine model\/year in the table below. For Mercury owners, here's a guide to help you identify your engine's serial\/model: \u003ca href=\"https:\/\/jlmmarine.com\/blogs\/serial-number-guide\/mercury-outboard-serial-number-guide\" rel=\"nofollow noopener\" target=\"_blank\"\u003eMercury Serial Number Guide\u003c\/a\u003e. You can also review exploded diagrams to verify part numbers: \u003ca href=\"https:\/\/jlmmarine.com\/blogs\/diagrams\/mercury-parts-catalog\" rel=\"nofollow noopener\" target=\"_blank\"\u003eMercury Parts Diagrams \u0026amp; Catalog\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eBrand\u003c\/th\u003e\n      \u003cth\u003eModel\u003c\/th\u003e\n      \u003cth\u003eRated HP\u003c\/th\u003e\n      \u003cth\u003eStroke\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMercury Mariner Marine\u003c\/td\u003e\n      \u003ctd\u003eOutboard\u003c\/td\u003e\n      \u003ctd\u003e2.5 HP \/ 3.5 HP\u003c\/td\u003e\n      \u003ctd\u003e2-Stroke\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n      \u003cth\u003eValue\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eOEM Part Number\u003c\/td\u003e\n      \u003ctd\u003e3F0-87122-1\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eApplication\u003c\/td\u003e\n      \u003ctd\u003eCarburetor Repair Kit\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eEngine Type\u003c\/td\u003e\n      \u003ctd\u003e2-Stroke Outboard\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCompatible Brands\u003c\/td\u003e\n      \u003ctd\u003eMercury, Tohatsu, Nissan\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003ePackage Contents\u003c\/h2\u003e\n\n\u003cp\u003eThis carburetor repair kit includes:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\u003cspan style=\"color:red;\"\u003e\u003cstrong\u003eComplete carburetor seal and gasket set\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003eAll necessary components for carburetor overhaul and restoration\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Guide\u003c\/h2\u003e\n\n\u003col\u003e\n  \u003cli\u003eDisconnect the fuel line and remove the carburetor from the engine. Clean the exterior to prevent contamination during disassembly.\u003c\/li\u003e\n  \u003cli\u003eDisassemble the carburetor carefully, noting the position of jets, needle valves, and float assembly. Take photos if needed for reference.\u003c\/li\u003e\n  \u003cli\u003eRemove all old gaskets, seals, and O-rings from carburetor body and cover surfaces. Inspect for corrosion or damage.\u003c\/li\u003e\n  \u003cli\u003eClean all metal components with carburetor cleaner and compressed air. Ensure all fuel passages and jets are clear.\u003c\/li\u003e\n  \u003cli\u003eInstall new gaskets and seals from the repair kit in the same positions as the original components. Do not reuse old seals.\u003c\/li\u003e\n  \u003cli\u003eReassemble the carburetor, ensuring float height and needle valve settings match factory specifications. Torque fasteners evenly.\u003c\/li\u003e\n  \u003cli\u003eReinstall the carburetor onto the engine with a new mounting gasket. Connect the fuel line securely.\u003c\/li\u003e\n  \u003cli\u003ePrime the fuel system and start the engine. Adjust idle mixture and speed as needed for smooth operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How do I confirm this kit fits my Mercury outboard?\u003c\/strong\u003e\u003cbr\u003e\nA: Verify your engine is a 2-stroke Mercury Mariner rated at 2.5 HP or 3.5 HP. Cross-reference OEM part number 3F0-87122-1 with your service manual or parts diagram.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What are the signs my carburetor seals need replacement?\u003c\/strong\u003e\u003cbr\u003e\nA: Common symptoms include fuel leaks around the carburetor, hard starting, rough idle, poor acceleration, or visible fuel staining on the carburetor body. If gaskets are brittle or cracked during inspection, replacement is necessary.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How often should I rebuild the carburetor on my outboard?\u003c\/strong\u003e\u003cbr\u003e\nA: Rebuild intervals depend on usage and fuel quality. For engines used in saltwater or stored long-term, inspect seals annually. If you experience fuel delivery issues or the engine has sat unused for more than one season, a carburetor rebuild is recommended.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can I reuse any of the old gaskets if they look intact?\u003c\/strong\u003e\u003cbr\u003e\nA: No. Even gaskets that appear undamaged can have compression set or micro-cracks that cause leaks. Always replace all seals and gaskets during a carburetor rebuild to ensure a proper seal.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Is this an OEM part or aftermarket?\u003c\/strong\u003e\u003cbr\u003e\nA: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How fast do you ship and how much does it cost?\u003c\/strong\u003e\u003cbr\u003e\nA: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is your warranty and return policy?\u003c\/strong\u003e\u003cbr\u003e\nA: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused \u0026amp; in original condition); please see our policy page or reach out for instructions.\u003c\/p\u003e\n\n\u003ch2\u003eImportant Notes\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003eVerify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.\u003c\/li\u003e\n  \u003cli\u003eThis product is an aftermarket replacement part and is not an OEM component.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended to ensure safety and optimal performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose JLM MARINE?\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuality Assured:\u003c\/strong\u003e As a trusted manufacturer for over 20 years, we supply top marine brands globally.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFast Global Shipping:\u003c\/strong\u003e Free delivery worldwide in 5–15 days.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDirect from Manufacturer:\u003c\/strong\u003e Competitive pricing without compromising quality.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"JLM Marine","offers":[{"title":"Default Title","offer_id":50503792525625,"sku":"17CR008","price":22.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0885\/0433\/6697\/files\/17CR008-1.jpg?v=1755400011","url":"https:\/\/jlmmarine.com\/products\/3f0-87122-1-carburetor-repair-kit-for-mercury-tohatsu-nissan","provider":"JLM Marine Boat Parts Limited","version":"1.0","type":"link"}