Kizut FG100 GX31 Carburetor Kit for Honda FG100/GX31/GX22 – 4-Cycle Replacement with Filters & Primer Bulb

If your FG100 tiller or small engine is running rough, refusing to start, or showing poor throttle response, the problem often begins with an aged or clogged carburetor. The Kizut FG100 GX31 carburetor kit is built to match the original Honda fit and function, supplying the parts needed to rebuild or replace the carburetor on GX31 and GX22-type 4-cycle engines. This package includes the carburetor plus commonly replaced consumables so you can get the engine back to proper operation without multiple orders.

Will this carburetor fit my FG100 tiller or GX31/GX22 engine?

Yes — the Kizut unit is designed to fit FG100 tillers and engines using the GX31/GX22 4-cycle family. It replaces a range of original part numbers, making it suitable for many FG100 models that share the same mounting and fuel connections.

• Compatible with Honda FG100 cultivator/tiller applications.
• Replaces OEM numbers: 16100-ZM5-A95, 16100-ZM5-846, 16100-ZM5-A93, 16100-ZM3-843, 16100-ZM5-845.
• Fits both GX31 and GX22 4-cycle engine configurations where those part numbers are specified.

What comes in the kit and why are those parts useful?

The kit includes the carburetor plus a selection of maintenance items commonly replaced during a carburetor service. Providing these extras helps avoid repeated disassembly and ensures all fuel path components are fresh.

• One complete gx31 carburetor for direct replacement.
• Two air filters to restore clean airflow and protect the engine.
• Fuel tank grommet, fuel filter, two 2-foot fuel lines, and a primer bulb for secure, leak-free fuel delivery.
• Gasket and spark plug to complete the reassembly and optimize combustion.

How does installing this carburetor improve engine performance?

A properly fitting and clean carburetor meters air and fuel correctly across idle to full throttle. Replacing a worn or clogged carburetor often results in easier starts, smoother idling, more consistent throttle response, and reduced fuel fouling.

• Restores correct fuel-to-air mixture for steadier idle and acceleration.
• Reduces hesitation and stalling caused by varnish or clogged jets.
• Fresh filters and lines prevent debris and improve fuel flow.

Do I need special tools or skills to install this carburetor?

Basic hand tools and a modest level of mechanical comfort are typically sufficient. If you can remove the old carburetor and follow simple fuel-line and linkage connections, you can install this kit; however, a certified small-engine technician can help if you prefer professional installation.

• Standard sockets/wrenches, screwdrivers, and pliers usually cover the job.
• Inspect and match mounting holes and throttle/choke linkages before tightening.
• Test for fuel leaks and proper choke operation after installation.

Who is this for: The Kizut FG100 GX31 carburetor kit is made for homeowners, landscapers, and small-engine technicians who need a ready-to-install replacement for Honda FG100 tillers and compatible GX31/GX22 engines. It suits anyone seeking a complete rebuild kit that reduces follow-up purchases by including filters, fuel lines, gaskets, and a new spark plug alongside the carburetor.