As a genuine Honda OEM part, the Main Jet (#72) is manufactured to Honda's exacting specifications, ensuring correct fuel flow calibration for consistent, dependable carburetor operation. Confirm fitment by checking your unit's model and serial number against the compatibility table before ordering.
Key Features
- Correct Fuel Metering — the #72 sizing designation controls the precise volume of fuel delivered through the carburetor's main circuit at operating load; an incorrect jet size will cause rich or lean running conditions that affect power and fuel consumption.
- Genuine Honda OEM — sourced directly from Honda, this jet matches the original part for thread pitch, orifice diameter, and seat geometry, ensuring it installs and seals exactly as the factory unit did.
- Broad Honda Fitment — listed for GX160 engines, WB and WD-series water pumps, EB and EM-series generators, HS624 snow blowers, FR-series tillers, and BF-series outboard motors, among others; verify your model and serial number against the fitment table to confirm this is the correct jet for your unit.
- Serial Range Awareness — Honda supersedes carburetor jets at production breaks, so always cross-reference your machine's serial number with the fitment table to confirm part number 99101-ZF5-0720 is the right specification for your build.
The main jet is a small, precisely sized orifice inside the carburetor that meters the volume of fuel mixed with incoming air during normal engine operation. The number stamped on the jet — in this case #72 — corresponds to a specific bore diameter that determines how much fuel flows at mid to full throttle; even a small variation from the correct size will shift the air-fuel mixture outside the intended range, leading to rough running, power loss, or excess fuel consumption. When a main jet becomes clogged with varnish deposits or debris, the engine will run lean and may surge, hesitate, or stall under load — replacing it with the correct genuine OEM jet restores proper fuel delivery and smooth operation.
Part Details
| Part Number | 99101-ZF5-0720 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Main Jet (#72) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EB2500, EM1600, EM1800, EM2200, EM2500 | All |
| Horizontal Shaft Engine | GX160 | All |
| Inverter Generator | EB2200 | All |
| Outboard Motor | BF50 | All |
| Portable Outboard Motor | BF5 | All |
| Tiller | FR600, FR800 | All |
| Two-Stage Snow Blower | HS624 | All |
| Water Pump | WB20, WB30, WD20, WD30, WMP20 | All |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
