{"product_id":"idle-adjustment-knob-screw-retainer-clip-for-omc-johnson-74-85-387272-321996","title":"Idle Adjustment Knob Screw \u0026 Retainer Clip for OMC Johnson 74-85 - 387272 321996","description":"\u003ch2\u003eIdle Adjustment Knob Screw \u0026amp; Retainer Clip for OMC Johnson\u003c\/h2\u003e\u003cp\u003eThis idle adjustment knob screw and retainer clip replaces OEM parts 387272 and 321996 for OMC Johnson outboard motors built from 1974 to 1985, allowing precise idle speed adjustment.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe idle adjustment knob screw and retainer clip is a direct replacement for worn original components on OMC Johnson outboard motors. It provides the precise adjustment needed to set proper idle speed for smooth operation. This part is ideal for restoring carburetor function on vintage two-stroke outboards.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eManufactured from corrosion-resistant materials for marine use\u003c\/li\u003e\n\u003cli\u003eThreads match original dimensions for secure fit\u003c\/li\u003e\n\u003cli\u003eKnob provides easy hand-turning without tools\u003c\/li\u003e\n\u003cli\u003eRetainer clip holds adjustment securely in place\u003c\/li\u003e\n\u003cli\u003eReplaces OEM part numbers 387272 and 321996\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor OMC Johnson outboard motors (1974–1985)\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAdjusting idle speed on two-stroke outboard engines\u003c\/li\u003e\n\u003cli\u003eTuning carburetor air\/fuel mixture for optimal performance\u003c\/li\u003e\n\u003cli\u003eReplacing broken or stripped idle adjustment hardware\u003c\/li\u003e\n\u003cli\u003eRestoring idle control on vintage Johnson outboards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e387272, 321996\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOMC Johnson outboards 1974-1985\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIdle adjustment knob screw \u0026amp; retainer clip\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Will this fit a 1978 Johnson 25hp outboard? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, this part is compatible with OMC Johnson outboards from 1974-1985, including the 1978 25hp model. Check your serial number for exact confirmation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is the knob metal or plastic? \u003cstrong\u003eA:\u003c\/strong\u003e The knob is typically made of metal for durability in marine environments, but slight variations may exist between production runs.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eSlight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Solid Spare","offers":[{"title":"Default Title","offer_id":44957582655574,"sku":"ZZ2Y01143","price":51.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/57_e9d3bb5c-ab58-4397-9ea7-21c2aecaa0f9.jpg?v=1781568820","url":"https:\/\/www.solidspare.com\/products\/idle-adjustment-knob-screw-retainer-clip-for-omc-johnson-74-85-387272-321996","provider":"Solid Spare","version":"1.0","type":"link"}