{"product_id":"6h1-14301-14302-14303-carburetor-assy-set-for-yamaha-90hp-outboard-jlm-marine","title":"6H1-14301\/14302\/14303 Carburetor Assy Set for Yamaha 90HP Outboard | JLM Marine","description":"\u003ch2\u003eCarburetor Assy Set – Fits Yamaha 90HP 2-Stroke Outboard Engines\u003c\/h2\u003e\n\n\u003cp\u003eThis complete carburetor assembly set is engineered for \u003cstrong\u003eYamaha 90HP 2-stroke outboard motors\u003c\/strong\u003e, delivering reliable fuel delivery and consistent engine performance. Built to precise OEM specifications, this three-piece set includes top, middle, and bottom carburetors designed to replace factory parts directly.\u003c\/p\u003e\n\n\u003cp\u003eDirect replacement for Yamaha OEM part numbers \u003cstrong\u003e6H1-14301\u003c\/strong\u003e, \u003cstrong\u003e6H1-14302\u003c\/strong\u003e, and \u003cstrong\u003e6H1-14303\u003c\/strong\u003e, ensuring seamless compatibility with your original equipment.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eComplete 3-carburetor assembly set for triple-cylinder configuration\u003c\/li\u003e\n  \u003cli\u003ePremium aluminum alloy construction for long-term durability\u003c\/li\u003e\n  \u003cli\u003eDirect bolt-on installation with factory mounting points\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 for your Yamaha outboard carburetor replacement.\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      \u003cth\u003eNotes\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eYamaha\u003c\/td\u003e\n      \u003ctd\u003e6H1-14301-04-00\u003c\/td\u003e\n      \u003ctd\u003eTop Carburetor\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eYamaha\u003c\/td\u003e\n      \u003ctd\u003e6H1-14302-02-00\u003c\/td\u003e\n      \u003ctd\u003eMiddle Carburetor\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eYamaha\u003c\/td\u003e\n      \u003ctd\u003e6H1-14303-05-00\u003c\/td\u003e\n      \u003ctd\u003eBottom Carburetor\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 Yamaha owners, here's a guide to help you identify your engine's serial\/model: \u003ca href=\"https:\/\/jlmmarine.com\/blogs\/serial-number-guide\/yamaha-outboard-serial-number-guide-2025\" rel=\"nofollow noopener\" target=\"_blank\"\u003eYamaha Serial Number Guide\u003c\/a\u003e. You can also review exploded diagrams to verify part numbers: \u003ca href=\"https:\/\/jlmmarine.com\/blogs\/serial-number-guide\/yamaha-outboard-parts-diagrams-catalog\" rel=\"nofollow noopener\" target=\"_blank\"\u003eYamaha Parts Diagrams \u0026amp; Catalog\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cdiv style=\"overflow-x:auto;\"\u003e\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        \u003cth\u003eOEM Part No.\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eOutboard\u003c\/td\u003e\n        \u003ctd\u003e90HP\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e6H1-14301\/14302\/14303\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\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\u003eMaterial\u003c\/td\u003e\n      \u003ctd\u003eAluminum Alloy\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eWeight\u003c\/td\u003e\n      \u003ctd\u003eApprox. 1945g \/ 68.6oz\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eOEM Number\u003c\/td\u003e\n      \u003ctd\u003e6H1-14301\/14302\/14303\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eConfiguration\u003c\/td\u003e\n      \u003ctd\u003eTop (6H1-14301-04-00), Middle (6H1-14302-02-00), Bottom (6H1-14303-05-00)\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\u003cul\u003e\n  \u003cli\u003e\n\u003cspan style=\"color:red;\"\u003e\u003cstrong\u003e3 × Carburetor Assemblies\u003c\/strong\u003e\u003c\/span\u003e (Top, Middle, Bottom)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Guide\u003c\/h2\u003e\n\n\u003col\u003e\n  \u003cli\u003eDisconnect the battery and fuel line to ensure safe working conditions. Allow the engine to cool completely before beginning.\u003c\/li\u003e\n  \u003cli\u003eRemove the engine cowling and locate the existing carburetor assemblies mounted on the intake manifold. Take photos for reference during reassembly.\u003c\/li\u003e\n  \u003cli\u003eDisconnect throttle linkages, choke cables, and fuel lines from each carburetor. Label each connection to simplify reinstallation.\u003c\/li\u003e\n  \u003cli\u003eUnbolt the mounting hardware securing the old carburetors to the intake manifold. Remove the carburetors carefully to avoid damaging gasket surfaces.\u003c\/li\u003e\n  \u003cli\u003eInspect and clean the intake manifold mounting surfaces, removing old gasket material or debris. Replace intake gaskets if worn or damaged.\u003c\/li\u003e\n  \u003cli\u003ePosition the new bottom carburetor (6H1-14303-05-00) onto the intake manifold with a fresh gasket. Secure with mounting bolts, tightening evenly in a cross pattern.\u003c\/li\u003e\n  \u003cli\u003eInstall the middle carburetor (6H1-14302-02-00) in the same manner, ensuring proper alignment with mounting holes and fuel passages.\u003c\/li\u003e\n  \u003cli\u003eInstall the top carburetor (6H1-14301-04-00), verifying all three units are seated flush and evenly torqued.\u003c\/li\u003e\n  \u003cli\u003eReconnect fuel lines to each carburetor inlet, ensuring clamps are tight and connections are secure to prevent fuel leaks.\u003c\/li\u003e\n  \u003cli\u003eReattach throttle linkages and choke cables to their respective positions on each carburetor. Verify smooth operation and full range of motion.\u003c\/li\u003e\n  \u003cli\u003eReconnect the battery and turn the fuel valve on, inspecting all connections for leaks. Prime the fuel system if necessary.\u003c\/li\u003e\n  \u003cli\u003eStart the engine and allow it to warm up, adjusting idle mixture and synchronization as needed. Reinstall the cowling once performance is verified.\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 carburetor set fits my Yamaha outboard?\u003c\/strong\u003e\u003cbr\u003e\nA: Verify that your engine is a Yamaha 90HP 2-stroke model and cross-reference the OEM part numbers (6H1-14301-04-00, 6H1-14302-02-00, 6H1-14303-05-00) with your service manual or existing carburetor tags. You can also use the Yamaha serial number guide linked above to identify your engine model and year.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What are the main benefits of this carburetor set over the original?\u003c\/strong\u003e\u003cbr\u003e\nA: This set improves throttle response, delivers fine fuel atomization for easy starts and quick throttle inputs, and promotes efficient combustion to reduce carbon buildup. The aluminum alloy construction ensures durability comparable to OEM parts.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How often should I replace or service my carburetors?\u003c\/strong\u003e\u003cbr\u003e\nA: Carburetor lifespan depends on fuel quality, usage conditions, and maintenance. Inspect and clean carburetors annually or every 100 operating hours. Replace if you experience persistent rough idling, poor throttle response, or fuel leaks that cleaning cannot resolve.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What are common signs that my carburetors need replacement?\u003c\/strong\u003e\u003cbr\u003e\nA: Watch for symptoms such as difficulty starting, rough or inconsistent idle, hesitation during acceleration, excessive fuel consumption, black smoke from the exhaust, or visible fuel leaks around carburetor bodies or gaskets.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: OEM vs. 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":51924871971129,"sku":"23CA477","price":215.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0885\/0433\/6697\/files\/12_c48d4125-acea-451c-a1f9-56cf3e29945f.jpg?v=1770528600","url":"https:\/\/jlmmarine.com\/es\/products\/6h1-14301-14302-14303-carburetor-assy-set-for-yamaha-90hp-outboard-jlm-marine","provider":"JLM Marine Boat Parts Limited","version":"1.0","type":"link"}