YGQ Generator Carburetor Kit for GX340/GX390 Clones 27mm Bore — Huayi P27-1D Fit, 24cm Fuel Hose

YGQ Huayi P27-1D carburetor kit is a direct-fit manual carb designed to replace OEM Huayi 27mm carbs in GX340/GX390-style 338–459cc generator engines.

This replacement carburetor kit gives gas-powered portable generators a serviceable, OEM-standard manual carburetor intended for Honda clone engines and many popular generator brands. It includes the carb body plus a 24 cm fuel hose with protective sleeve and is built to match the 30.5 mm intake and 52 mm center-to-center mounting dimensions of the original Huayi P27 family. The kit fits a wide range of models from Predator, Champion, Generac, Coleman Powermate, Firman, Westinghouse and other manufacturers that use GX340/GX390-style carburetors.

Will this carburetor physically fit my generator’s engine?

Measure the intake diameter and mounting hole spacing before ordering to confirm compatibility. The YGQ Huayi P27-1D is specified for a 27 mm throttle bore, 30.5 mm air intake and 52 mm mounting hole centers—matching many GX340/GX390 clones.

• 27 mm carburetor bore for GX340/GX390-style engines
• 30.5 mm air intake diameter
• 52 mm center-to-center mounting holes
• Designed to match HUAYI P27-1D / P27-3D dimensions

Which generator brands and models are supported?

The kit works with numerous generator makes that use Huayi-style manual carbs, including Predator, Champion, Generac, Coleman Powermate, Powerhorse, Firman and Westinghouse. It’s commonly used as a replacement on 338–459 cc engines (GX340/GX390 clones) powering 5000–10000 watt class units.

• Predator 5000–9500 series compatibility
• Champion models listed in parts cross-reference
• Generac Centurion GP series and similar models
• Fits many Coleman Powermate, Powerhorse, Firman and Westinghouse units

What’s included and how does installation work?

The kit contains the manual Huayi-style carburetor plus a 24 cm fuel hose with a protective sheath and necessary gaskets. Installation is straightforward for anyone comfortable removing the air cleaner and old carb, bolting the new unit in place, reconnecting fuel and throttle linkages, and adjusting the idle and mixture screws.

• Replacement carburetor body built to OEM Huayi specs
• 24 cm fuel hose with protective pipe for secure routing
• Manual choke configuration (not an automatic choke unit)
• Requires basic tools and routine carb tuning after fitment

How should I maintain or troubleshoot this carburetor?

Regular fuel-filter checks, clean fuel, and periodic inspection of the hose and gaskets keep the carburetor performing. If you see rough idle, poor throttle response, or fuel leaks, check for clogs in jets, proper float height, and secure hose connections before replacing parts.

• Use clean, stabilized gasoline to prevent varnish buildup
• Inspect and replace fuel filter inline if contaminated
• Clean jets and passages with carb-safe cleaner if needed
• Verify float level and needle seat seating during rebuild

Who is this for: The YGQ Huayi P27-1D carburetor kit is meant for DIY owners, mechanics, and rental shop technicians who maintain GX340/GX390-style generator engines and need a reliable, dimensionally compatible manual carburetor replacement. It’s suitable for users who prefer an OEM-spec manual choke unit for mid- to high-displacement portable generators across multiple manufacturers, and for anyone seeking an economical replacement part that follows Huayi P27 sizing and fitment standards.