{"product_id":"honda-atc250es-big-red-1985-1988-inspection-cap-set-14mm-30mm","title":"Honda ATC250ES Big Red 1985-1988 Inspection Cap Set 14mm 30mm","description":"\u003ch2\u003eHonda ATC250ES Big Red Timing \/ Alternator Inspection Cap Set\u003c\/h2\u003e\n\u003cp\u003eReplacement \u003cstrong\u003e14mm and 30mm inspection-cap set\u003c\/strong\u003e for compatible Honda ATC250ES Big Red engines using Honda's classic left-crankcase \/ alternator-cover cap family. The two caps provide service access to the alternator rotor, flywheel and timing marks without removing the complete engine cover.\u003c\/p\u003e\n\n\u003ch3\u003eVerified Honda Fitment\u003c\/h3\u003e\n\u003cp\u003eATC250ES Big Red left-crankcase fiches list 90084-471-000 and 90087-428-000 together.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eYear guidance:\u003c\/strong\u003e 1985-1988 ATC250ES Big Red \/ Super Red application family.\u003c\/p\u003e\n\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSet contains: 2 inspection \/ access caps\u003c\/li\u003e\n\u003cli\u003eApproximate nominal sizes: \u003cstrong\u003e14mm and 30mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eLocation: left crankcase \/ alternator \/ magneto cover\u003c\/li\u003e\n\u003cli\u003eUse: timing-mark inspection and rotor \/ flywheel access\u003c\/li\u003e\n\u003cli\u003eFinish: metal replacement caps\u003c\/li\u003e\n\u003cli\u003eSKU: \u003cstrong\u003e01334-ENG\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Replace These Caps?\u003c\/h3\u003e\n\u003cp\u003eAlternator-cover inspection caps can become rounded, damaged, corroded or lost during servicing. Replacing worn caps helps restore the engine-cover appearance and gives reliable access to the timing marks and rotor area during ignition, valve-clearance and engine-timing work.\u003c\/p\u003e\n\n\u003ch3\u003eFitment Checks\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCompare both cap diameters and thread profiles with the caps currently fitted.\u003c\/li\u003e\n\u003cli\u003eConfirm your left crankcase \/ alternator cover uses the Honda \u003cstrong\u003e90084-471-000 + 90087-428-000\u003c\/strong\u003e cap family.\u003c\/li\u003e\n\u003cli\u003eCheck the O-rings and sealing surfaces during installation and replace damaged seals where required.\u003c\/li\u003e\n\u003cli\u003eDo not force a cap into a different thread; Honda used other 30mm inspection-cap part numbers on some later or different engine families.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDelivery \u0026amp; Returns\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFree UK delivery with an estimated 2–3 working-day service\u003c\/li\u003e\n\u003cli\u003e30-day returns, subject to the item being returned in its original condition\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\n\u003ch3\u003eHonda OE Cross-References\u003c\/h3\u003e\n\u003cp\u003eThis is an \u003cstrong\u003eunbranded aftermarket two-cap set\u003c\/strong\u003e. Honda numbers are supplied as genuine OE fitment references and are not claimed to be the manufacturer MPN of this exact aftermarket product.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e90084-428-000\u003c\/strong\u003e – earlier Honda A.C. generator \/ alternator inspection cap reference\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e90084-471-000\u003c\/strong\u003e – later Honda 14mm alternator \/ timing inspection cap reference\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e90087-428-000\u003c\/strong\u003e – Honda 30mm crankcase \/ alternator inspection cap reference\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Unbranded","offers":[{"title":"Default Title","offer_id":57386953933175,"sku":"01334-ENG","price":7.0,"currency_code":"SHP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0528\/8771\/6007\/files\/20260730_145712-Photoroom.jpg?v=1786629810","url":"https:\/\/www.motomaniauk.com\/products\/honda-atc250es-big-red-1985-1988-inspection-cap-set-14mm-30mm","provider":"Moto Mania UK","version":"1.0","type":"link"}