{"product_id":"chainsaw-carburetor-ms640-ms650-ms660-replaces-wj-67a","title":"Chainsaw Carburetor MS640 MS650 MS660 – Replaces WJ-67A","description":"\n\u003ch2\u003eChainsaw Carburetor Replacement for MS640 \/ MS650 \/ MS660 – Replaces WJ-67A (C3A-S31)\u003c\/h2\u003e\n\u003cp\u003eKeep your chainsaw running at peak performance with this precision-engineered replacement carburetor. Designed as a direct-fit replacement for the MS640, MS650, and MS660 models, this metal carburetor ensures reliable fuel delivery, smooth throttle response, and consistent power output — exactly what you need to get the job done efficiently in demanding outdoor conditions.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDirect Replacement:\u003c\/strong\u003e Compatible with MS640, MS650, and MS660 chainsaws; replaces OEM part WJ-67A (C3A-S31) for seamless installation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReliable Fuel Delivery:\u003c\/strong\u003e Precision-machined jets and internal channels ensure a consistent fuel-to-air mixture for smooth, dependable power output.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrecision Engineering:\u003c\/strong\u003e Exact dimensions guarantee a perfect fit with no modification required, making installation straightforward for both professionals and DIYers.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLightweight Construction:\u003c\/strong\u003e Weighs only 147g, minimising added load on your equipment during extended use.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable Metal Build:\u003c\/strong\u003e Constructed from quality metal components built to withstand tough working environments and prolonged operational cycles.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEffortless Starting:\u003c\/strong\u003e Properly calibrated fuel mixture promotes quicker cold and warm starts, reducing engine flooding and rough idling.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Models\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMS640, MS650, MS660\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReplaces OEM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWJ-67A, C3A-S31\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMetal\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e147g\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 piece\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Replacement Carburetor\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cp\u003eBefore installing, ensure your chainsaw is completely off and the fuel system has been safely depressurised. Verify the part number against your existing carburetor to confirm compatibility. Slight colour variations from product images may occur due to monitor display settings. Minor measurement deviations (±1–2mm) may apply due to manual measurement methods.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/garden-pruner-shears-secateurs-bonsai-fruit-trees\"\u003eGarden Pruner Shears – Secateurs for Bonsai \u0026amp; Fruit Trees\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0-10\/0-12\/0-25 Bar | DIY Tool\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/100-pcs-plant-support-clips-orchid-flower-vine-stem-garden\"\u003e100 PCS Plant Support Clips for Orchid, Flower \u0026amp; Vine Stems\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/eye-face-protection\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on eye and face protection\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Is this carburetor compatible with the MS660 as well as the MS640 and MS650?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. This replacement carburetor is compatible with the MS640, MS650, and MS660 chainsaw models and directly replaces OEM part numbers WJ-67A and C3A-S31. Always cross-check your existing part number before ordering to ensure a perfect fit.\u003c\/p\u003e\n\u003ch4\u003eQ: Do I need any special tools to install this carburetor?\u003c\/h4\u003e\n\u003cp\u003eA: In most cases, standard screwdrivers and a carburetor adjustment tool are sufficient. Because this is a direct-fit replacement with exact OEM dimensions, no modification or drilling is required. Consult your chainsaw's service manual for model-specific installation guidance.\u003c\/p\u003e\n\u003ch4\u003eQ: What material is this carburetor made from?\u003c\/h4\u003e\n\u003cp\u003eA: The carburetor is constructed from durable metal components, designed to handle the heat, vibration, and fuel exposure typical of professional chainsaw operation in demanding outdoor environments.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Is this carburetor compatible with the MS660 as well as the MS640 and MS650?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. This replacement carburetor is compatible with the MS640, MS650, and MS660 chainsaw models and directly replaces OEM part numbers WJ-67A and C3A-S31. 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Consult your chainsaw's service manual for model-specific installation guidance.\"}}, {\"@type\": \"Question\", \"name\": \"What material is this carburetor made from?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The carburetor is constructed from durable metal components, designed to handle the heat, vibration, and fuel exposure typical of professional chainsaw operation in demanding outdoor environments.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Chainsaw Carburetor MS640 MS650 MS660 – Replaces WJ-67A\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/products\/chainsaw-carburetor-ms640-ms650-ms660-replaces-wj-67a\"}]}\u003c\/script\u003e","brand":"Axl","offers":[{"title":"China Mainland","offer_id":44140044714071,"sku":"200007763:201336100","price":67.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0676\/6008\/7383\/files\/S3ebc5426bb3542d585c08a5645b74c892_18a870dc-57c8-4959-b18c-089a64ded010.webp?v=1786487332","url":"https:\/\/axlcustomersupport.com\/products\/chainsaw-carburetor-ms640-ms650-ms660-replaces-wj-67a","provider":"Axl","version":"1.0","type":"link"}