{"product_id":"turbotunity-carburetor-tune-up-kit-for-honda-gx390-clones-27mm-carb-full-overhaul-kit","title":"TURBOTUNITY Carburetor Tune-Up Kit for Honda GX390 \u0026 Clones — 27mm Carb, Full Overhaul Kit","description":"\u003cp\u003e\u003cstrong\u003eThe TURBOTUNITY Carburetor Tune Up Kit is a complete replacement and overhaul package centered on a 27mm carburetor built to fit Honda GX390 and compatible clone engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your small engine-powered equipment—mini bikes, go-karts, pumps, pressure washers, or log splitters—is running rough or needs maintenance, this kit supplies the most common wear parts and a direct-fit carburetor. Designed to match popular OEM part numbers and Predator-compatible platforms, it brings together fuel, ignition, and intake components so you can restore function without sourcing parts individually.\u003c\/p\u003e\n\n\u003ch3\u003eWill this carburetor fit my Honda GX390 or clone engine?\u003c\/h3\u003e\n\u003cp\u003eThis kit is engineered to match the mounting and intake dimensions used on Honda GX390-series engines and many clones. It aligns with OEM part numbers and has the center-to-center mounting spacing needed for direct replacement.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e27mm carburetor bore size with 30.5mm air intake diameter\u003c\/li\u003e\n  \u003cli\u003e52mm center-to-center mounting hole spacing for bolt alignment\u003c\/li\u003e\n  \u003cli\u003eCompatible with part numbers 16100-ZF6-V01, 16100-ZH9-W21, 16100-ZE2-W71\u003c\/li\u003e\n  \u003cli\u003eSupports Honda, clone GX390 389cc\/420cc and Harbor Freight Predator 420 small engines\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat parts are included and how do they restore performance?\u003c\/h3\u003e\n\u003cp\u003eThe kit bundles the main carburetor with common consumables and ignition components so you can address fuel delivery, spark, and air filtration in one repair. Replacing worn gaskets, jets, and ignition parts reduces leaks, improves combustion consistency, and helps equipment start easier.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eP27 27mm replacement carburetor with built-in fuel tap for cleaner fuel flow\u003c\/li\u003e\n  \u003cli\u003eThree carb gaskets plus two upgrade copper jets (104#, 107#) for tuning\u003c\/li\u003e\n  \u003cli\u003eAir filter, spark plug, pull start, ignition coil, and flameout switch included\u003c\/li\u003e\n  \u003cli\u003eAdditional gaskets: cylinder head cover and muffler; also heat insulator and speed spring set\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I use this kit on other machines and what should I avoid?\u003c\/h3\u003e\n\u003cp\u003eThe TURBOTUNITY tune up kit is versatile for many light machinery applications using the specified engines, but it is not universal for every small engine model. It’s specifically not intended for generator models and may not fit engines with different bore or mounting specs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eGood for mini bikes, go-karts, water\/trash pumps, log splitters, pressure washers, and air compressors\u003c\/li\u003e\n  \u003cli\u003eNot recommended for generators or engines with different carburetor dimensions\u003c\/li\u003e\n  \u003cli\u003eBoxed packaging contains all parts for a one-stop overhaul\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do the included upgrade jets and fuel tap help tuning?\u003c\/h3\u003e\n\u003cp\u003eThe two copper jets (sizes 104# and 107#) allow you to enrich or lean the main fuel circuit for altitude or load changes, while the built-in fuel tap simplifies fuel shutoff and service. These small adjustments can make big differences in throttle response and idle quality.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e107# jet for slightly richer mixtures under higher loads\u003c\/li\u003e\n  \u003cli\u003e104# jet for leaner settings or lower-elevation tuning\u003c\/li\u003e\n  \u003cli\u003eIntegrated fuel tap eases draining and servicing without fuel line removal\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The TURBOTUNITY Carburetor Tune Up Kit suits DIY mechanics, small-shop technicians, and owners of equipment powered by Honda GX390-style engines who want a consolidated repair package. If you need a direct-fit 27mm carburetor plus common ignition and gasket parts to revive a mini bike, go-kart, pump, or similar machine, this kit gives the necessary parts in one boxed shipment. Avoid this kit if you’re repairing a generator or an engine with nonmatching mounting or bore specifications.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this kit fit Harbor Freight Predator 420 engines?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The kit is compatible with Harbor Freight Predator 420 small engines that share GX390-style mounting and carb dimensions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are the included jets for tuning different altitudes?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The two copper jets (104# and 107#) allow leaner or richer settings for varying loads or elevation adjustments.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"TURBOTUNITY","offers":[{"title":"Default Title","offer_id":67587375694009,"sku":"B0CWGDSS4R","price":113.02,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/turbotunity-27mm-carburetor-front-view.jpg?v=1790507174","url":"https:\/\/redleafauto.ca\/products\/turbotunity-carburetor-tune-up-kit-for-honda-gx390-clones-27mm-carb-full-overhaul-kit","provider":"Redleaf Auto","version":"1.0","type":"link"}