{"product_id":"low-speed-adjustment-knob-for-johnson-evinrude-74-92-slow-idle-rich-lean-319152","title":"Low Speed Adjustment Knob for Johnson Evinrude 74-92 Slow Idle Rich Lean 319152","description":"\u003cstrong\u003eThis Low Speed Adjustment Knob is a carburetor adjustment part compatible with Johnson and Evinrude outboard motors (1974-1992) and matches OEM Part# 319152.\u003c\/strong\u003e\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThis low speed adjustment knob lets you fine-tune the idle mixture on Johnson and Evinrude outboard engines from the 1974-1992 era. Turning the knob adjusts the slow speed rich\/lean fuel ratio, helping you achieve a smooth idle and optimal performance. It is a direct replacement for the original OEM part and restores proper carburetion control.\u003c\/p\u003e\u003ch3\u003eKey Features \u0026amp; Performance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePrecise low speed mixture adjustment for smooth idle and throttle response\u003c\/li\u003e\n\u003cli\u003eDirect replacement for OEM Part# 319152\u003c\/li\u003e\n\u003cli\u003eSimple hand-tool operation – no special tools required\u003c\/li\u003e\n\u003cli\u003eDurable plastic and metal construction resists corrosion\u003c\/li\u003e\n\u003cli\u003eCompatible with most Johnson and Evinrude carburetors from the 74-92 period\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eJohnson outboard motors (1974-1992)\u003c\/li\u003e\n\u003cli\u003eEvinrude outboard motors (1974-1992)\u003c\/li\u003e\n\u003cli\u003eFits select carburetor models using low speed adjustment screw\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCommon Uses\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAdjusting slow idle speed on Johnson\/Evinrude outboards\u003c\/li\u003e\n\u003cli\u003eTuning rich\/lean fuel mixture for smoother operation\u003c\/li\u003e\n\u003cli\u003eReplacing a missing or broken adjustment knob\u003c\/li\u003e\n\u003cli\u003ePerforming carburetor maintenance on vintage outboard motors\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number(s):\u003c\/strong\u003e 319152\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Plastic knob with metal insert\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Low speed idle mixture adjustment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Will this knob fit a 1985 Evinrude 70 HP?\u003cstrong\u003e A:\u003c\/strong\u003e Yes, it is compatible with many Johnson and Evinrude models from 1974 to 1992, including the 70 HP series; verify your carburetor type.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What does the knob adjust exactly?\u003cstrong\u003e A:\u003c\/strong\u003e It controls the low speed fuel mixture – turning clockwise leans the mixture, counterclockwise richens it for smoother idling.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eProduct appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.\u003c\/em\u003e\u003c\/p\u003e","brand":"DURAFORCE","offers":[{"title":"Default Title","offer_id":53676748701969,"sku":"ZZ2Y00682","price":30.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/2446\/2929\/files\/57_593d959e-ba6e-4144-98cb-85131a051413.jpg?v=1781577586","url":"https:\/\/www.duraforce.com\/products\/low-speed-adjustment-knob-for-johnson-evinrude-74-92-slow-idle-rich-lean-319152","provider":"DURAFORCE","version":"1.0","type":"link"}