{"product_id":"royal-enfield-e20-carburetor-kit-uce-350-bs4-klt00004-a","title":"Royal Enfield E20 Carburettor Upgrade Kit for UCE 350 BS4 Carb Bikes (Black Tank Sticker Included) – KLT00004\/A","description":"\u003cp data-end=\"759\" data-start=\"218\"\u003eRoyal Enfield \u003cstrong data-end=\"288\" data-start=\"274\"\u003eKLT00004\/A\u003c\/strong\u003e is a genuine \u003cstrong data-end=\"352\" data-start=\"302\"\u003eE20 fuel-compatibility carburettor upgrade kit\u003c\/strong\u003e intended for \u003cstrong data-end=\"393\" data-start=\"366\"\u003eUCE 350 BS4 carburettor\u003c\/strong\u003e motorcycles that still run the “old carb” setup. As ethanol-blended petrol increases, non-updated carb internals and seals can lead to rough idle, hard starting, hesitation, and inconsistent fueling—especially after storage. This OEM kit is the factory-style solution to update the carburettor’s consumables\/calibration parts for better compatibility with E20 fuel.\u003c\/p\u003e\n\u003cp data-end=\"1093\" data-start=\"761\"\u003eThis SKU is supplied as a \u003cstrong data-end=\"794\" data-start=\"787\"\u003eset\u003c\/strong\u003e and includes a \u003cstrong data-end=\"849\" data-start=\"810\"\u003efuel tank E20 label (black sticker)\u003c\/strong\u003e as part of the kit (as per the genuine label on the pack shared). It is commonly searched as \u003cstrong data-end=\"981\" data-start=\"943\"\u003e“E20 kit for Classic 350 BS4 carb”\u003c\/strong\u003e, \u003cstrong data-end=\"1009\" data-start=\"983\"\u003e“E20 carb kit UCE 350”\u003c\/strong\u003e, \u003cstrong data-end=\"1058\" data-start=\"1011\"\u003e“ethanol conversion kit Royal Enfield carb”\u003c\/strong\u003e, and \u003cstrong data-end=\"1092\" data-start=\"1064\"\u003e“E20 jet kit for BS4 RE”\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-end=\"1241\" data-start=\"1095\"\u003e\u003cstrong data-end=\"1114\" data-start=\"1095\"\u003eBefore you buy:\u003c\/strong\u003e confirm your bike is \u003cstrong data-end=\"1175\" data-start=\"1136\"\u003eUCE 350 BS4 + carburettor (not EFI)\u003c\/strong\u003e and match by \u003cstrong data-end=\"1218\" data-start=\"1189\"\u003eVIN\/RC + carb model photo\u003c\/strong\u003e to avoid wrong orders.\u003c\/p\u003e\n\u003cp data-end=\"1279\" data-start=\"1246\"\u003e\u003cstrong data-end=\"1277\" data-start=\"1246\"\u003eKey Features \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"1971\" data-start=\"1280\"\u003e\n\u003cli data-end=\"1345\" data-start=\"1280\"\u003e\n\u003cp data-end=\"1345\" data-start=\"1282\"\u003eGenuine Royal Enfield kit: \u003cstrong data-end=\"1332\" data-start=\"1309\"\u003ePart No. KLT00004\/A\u003c\/strong\u003e (set pack)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1432\" data-start=\"1346\"\u003e\n\u003cp data-end=\"1432\" data-start=\"1348\"\u003eIntended for \u003cstrong data-end=\"1397\" data-start=\"1361\"\u003eUCE 350 BS4 carburettor platform\u003c\/strong\u003e (not for EFI \/ not for J-Series)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1528\" data-start=\"1433\"\u003e\n\u003cp data-end=\"1528\" data-start=\"1435\"\u003eHelps address E20-related issues: hard start, unstable idle, hesitation, lean\/rich behavior\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1613\" data-start=\"1529\"\u003e\n\u003cp data-end=\"1613\" data-start=\"1531\"\u003eIncludes \u003cstrong data-end=\"1579\" data-start=\"1540\"\u003eE20 fuel tank label (black sticker)\u003c\/strong\u003e inside the set (per pack label)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1709\" data-start=\"1614\"\u003e\n\u003cp data-end=\"1709\" data-start=\"1616\"\u003eOEM-grade seals\/consumables approach (reduces leakage\/swelling risk vs local rebuild parts)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1803\" data-start=\"1710\"\u003e\n\u003cp data-end=\"1803\" data-start=\"1712\"\u003eBest for: preventive upgrade, carb overhaul jobs, touring bikes using mixed fuel stations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1888\" data-start=\"1804\"\u003e\n\u003cp data-end=\"1888\" data-start=\"1806\"\u003eSupports return-prevention via \u003cstrong data-end=\"1870\" data-start=\"1837\"\u003eVIN + carb photo verification\u003c\/strong\u003e before dispatch\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1971\" data-start=\"1889\"\u003e\n\u003cp data-end=\"1971\" data-start=\"1891\"\u003eWorkshop-friendly: install during carb service\/cleaning with standard carb tools\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"2012\" data-start=\"1976\"\u003e\u003cstrong data-end=\"2010\" data-start=\"1976\"\u003eCompatibility Table\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\" data-end=\"2885\" data-start=\"2014\"\u003e\n\u003cthead data-end=\"2098\" data-start=\"2014\"\u003e\n\u003ctr data-end=\"2098\" data-start=\"2014\"\u003e\n\u003cth data-col-size=\"sm\" data-end=\"2022\" data-start=\"2014\"\u003eModel\u003c\/th\u003e\n\u003cth data-col-size=\"sm\" data-end=\"2040\" data-start=\"2022\"\u003ePlatform\/Engine\u003c\/th\u003e\n\u003cth data-col-size=\"sm\" data-end=\"2054\" data-start=\"2040\"\u003eBS\/Emission\u003c\/th\u003e\n\u003cth data-col-size=\"md\" data-end=\"2062\" data-start=\"2054\"\u003eYears\u003c\/th\u003e\n\u003cth data-col-size=\"sm\" data-end=\"2077\" data-start=\"2062\"\u003eStatus (✅\/❓)\u003c\/th\u003e\n\u003cth data-col-size=\"md\" data-end=\"2098\" data-start=\"2077\"\u003eNotes\/Constraints\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-end=\"2885\" data-start=\"2127\"\u003e\n\u003ctr data-end=\"2323\" data-start=\"2127\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2151\" data-start=\"2127\"\u003eUCE 350 (carburettor)\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2167\" data-start=\"2151\"\u003e346cc UCE 350\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2173\" data-start=\"2167\"\u003eBS4\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"2218\" data-start=\"2173\"\u003eApprox. 2017–2020 (varies by model\/region)\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2222\" data-start=\"2218\"\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"2323\" data-start=\"2222\"\u003e\n\u003cstrong data-end=\"2256\" data-start=\"2224\"\u003eVerify carburettor bike only\u003c\/strong\u003e. Not for EFI, not for BS6\/J-Series. Confirm by VIN + carb photo.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"2493\" data-start=\"2324\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2349\" data-start=\"2324\"\u003eClassic 350 UCE (carb)\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2359\" data-start=\"2349\"\u003eUCE 350\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2365\" data-start=\"2359\"\u003eBS4\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"2369\" data-start=\"2365\"\u003e—\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2373\" data-start=\"2369\"\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"2493\" data-start=\"2373\"\u003eCommonly discussed for BS4 carb bikes; \u003cstrong data-end=\"2430\" data-start=\"2414\"\u003estill verify\u003c\/strong\u003e by carb model and VIN. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"2616\" data-start=\"2494\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2527\" data-start=\"2494\"\u003eStandard\/Bullet 350 UCE (carb)\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2537\" data-start=\"2527\"\u003eUCE 350\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2543\" data-start=\"2537\"\u003eBS4\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"2547\" data-start=\"2543\"\u003e—\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2551\" data-start=\"2547\"\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"2616\" data-start=\"2551\"\u003eDo not assume; confirm by VIN\/parts fiche at local RE dealer.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"2731\" data-start=\"2617\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2642\" data-start=\"2617\"\u003eElectra 350 UCE (carb)\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2652\" data-start=\"2642\"\u003eUCE 350\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2658\" data-start=\"2652\"\u003eBS4\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"2662\" data-start=\"2658\"\u003e—\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2666\" data-start=\"2662\"\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"2731\" data-start=\"2666\"\u003eDo not assume; confirm by VIN\/parts fiche at local RE dealer.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"2885\" data-start=\"2732\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2773\" data-start=\"2732\"\u003e\n\u003cstrong data-end=\"2753\" data-start=\"2734\"\u003eNot compatible:\u003c\/strong\u003e EFI \/ J-Series 350\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2777\" data-start=\"2773\"\u003e—\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2781\" data-start=\"2777\"\u003e—\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"2785\" data-start=\"2781\"\u003e—\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2789\" data-start=\"2785\"\u003e—\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"2885\" data-start=\"2789\"\u003e\n\u003cstrong data-end=\"2802\" data-start=\"2791\"\u003eNot for\u003c\/strong\u003e Classic 350 Reborn, Meteor 350, Hunter 350, Bullet 350 J-Series (fuel-injected).\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp data-end=\"2917\" data-start=\"2890\"\u003e\u003cstrong data-end=\"2902\" data-start=\"2890\"\u003eVariants\u003c\/strong\u003e\u003cbr data-end=\"2905\" data-start=\"2902\"\u003e\u003ca href=\"https:\/\/underthehood.co.in\/products\/royal-enfield-rlt00241a-e20-carburettor-bs29-uce-350-bs3?_pos=3\u0026amp;_sid=076842fdb\u0026amp;_ss=r\"\u003e\u003cstrong\u003eTO BUY E20 BS3 CARBURETOR CLICK HERE\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp data-end=\"2917\" data-start=\"2890\"\u003e\u003ca href=\"https:\/\/underthehood.co.in\/products\/royal-enfield-rlt00240a-dual-fuel-e20-e10-carburettor-classic-standard-electra-350-bs4?_pos=5\u0026amp;_sid=076842fdb\u0026amp;_ss=r\"\u003e\u003cstrong\u003eTO BUY E20 BS4 CARBURETOR CLICK HERE\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp data-end=\"2917\" data-start=\"2890\"\u003e\u003ca href=\"https:\/\/underthehood.co.in\/products\/royal-enfield-klt00003-e20-carburetor-kit-uce-350-bs3?_pos=1\u0026amp;_sid=99d52b753\u0026amp;_ss=r\"\u003e\u003cstrong\u003eTO BUY E20 BS3 CARBURETOR KIT CLICK HERE\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp data-end=\"2944\" data-start=\"2922\"\u003e\u003cstrong data-end=\"2942\" data-start=\"2922\"\u003eFAQs \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"3192\" data-start=\"2946\"\u003e\u003cstrong data-end=\"3009\" data-start=\"2946\"\u003eQ1 (Fitment): How do I confirm KLT00004\/A will fit my bike?\u003c\/strong\u003e\u003cbr data-end=\"3012\" data-start=\"3009\"\u003eConfirm \u003cstrong data-end=\"3061\" data-start=\"3020\"\u003eUCE 350 + BS4 + carburettor (not EFI)\u003c\/strong\u003e. Share a photo of your carburettor area and your RC\/VIN details; match the carb model and connector\/cable routing before ordering.\u003c\/p\u003e\n\u003cp data-end=\"3384\" data-start=\"3194\"\u003e\u003cstrong data-end=\"3275\" data-start=\"3194\"\u003eQ2 (Fitment): Will this work on Classic 350 Reborn \/ Meteor 350 \/ Hunter 350?\u003c\/strong\u003e\u003cbr data-end=\"3278\" data-start=\"3275\"\u003eNo. Those are \u003cstrong data-end=\"3318\" data-start=\"3292\"\u003eJ-Series fuel-injected\u003c\/strong\u003e platforms; this kit is meant for \u003cstrong data-end=\"3372\" data-start=\"3352\"\u003eUCE 350 BS4 carb\u003c\/strong\u003e bikes only.\u003c\/p\u003e\n\u003cp data-end=\"3762\" data-start=\"3386\"\u003e\u003cstrong data-end=\"3467\" data-start=\"3386\"\u003eQ3 (Comparison): Is this better than local jetting\/aftermarket “E20 jet kit”?\u003c\/strong\u003e\u003cbr data-end=\"3470\" data-start=\"3467\"\u003eYes for reliability—OEM kits are designed as a packaged solution for compatibility and durability. Community discussions also describe the official kits as including specific carb consumables like jets\/gaskets\/choke parts rather than random tuning parts. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-end=\"3976\" data-start=\"3764\"\u003e\u003cstrong data-end=\"3811\" data-start=\"3764\"\u003eQ4 (Installation): Can I install it myself?\u003c\/strong\u003e\u003cbr data-end=\"3814\" data-start=\"3811\"\u003eRecommended via a mechanic\/carb technician. You’ll typically need carb removal, cleaning, careful replacement of kit components, and correct idle\/mixture setting.\u003c\/p\u003e\n\u003cp data-end=\"4265\" data-start=\"3978\"\u003e\u003cstrong data-end=\"4026\" data-start=\"3978\"\u003eQ5 (Symptoms): What problems can this solve?\u003c\/strong\u003e\u003cbr data-end=\"4029\" data-start=\"4026\"\u003eCommon triggers include \u003cstrong data-end=\"4068\" data-start=\"4053\"\u003epoor idling\u003c\/strong\u003e, \u003cstrong data-end=\"4108\" data-start=\"4070\"\u003estalling when throttle is released\u003c\/strong\u003e, \u003cstrong data-end=\"4130\" data-start=\"4110\"\u003ehard cold starts\u003c\/strong\u003e, and inconsistent fueling after ethanol-rich fuel exposure—especially when the carb is old\/worn. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-end=\"4515\" data-start=\"4267\"\u003e\u003cstrong data-end=\"4343\" data-start=\"4267\"\u003eQ6 (Returns-prevention): What should I send you to avoid ordering wrong?\u003c\/strong\u003e\u003cbr data-end=\"4346\" data-start=\"4343\"\u003eSend \u003cstrong data-end=\"4365\" data-start=\"4351\"\u003e(1) VIN\/RC\u003c\/strong\u003e, \u003cstrong data-end=\"4403\" data-start=\"4367\"\u003e(2) clear carb photo (left side)\u003c\/strong\u003e, and \u003cstrong data-end=\"4449\" data-start=\"4409\"\u003e(3) whether your bike is carb or EFI\u003c\/strong\u003e. If anything doesn’t match, order should be held until confirmed.\u003c\/p\u003e","brand":"UNDER THE HOOD","offers":[{"title":"Default Title","offer_id":50928263069991,"sku":null,"price":1720.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0878\/7447\/0183\/files\/Royal_Enfield_KLT00004_A_E20_carburettor_kit_for_UCE_350_BS4_carb_motorcycles_black_tank_sticker_set.jpg?v=1768418599","url":"https:\/\/underthehood.co.in\/products\/royal-enfield-e20-carburetor-kit-uce-350-bs4-klt00004-a","provider":"UNDER THE HOOD","version":"1.0","type":"link"}