The Honda 99101-ZH8-1100 Main Jet (#110) is a genuine OEM component designed for a wide range of Honda engines, generators, and two-stage snow blowers, including GX390, GX440, GX630, GX660, GX690, GXV630, GXV660, GXV690, EB10000 generators, HS928, HS1332, HSS928, and HSS1332 snow blowers. As a direct Honda OEM part, this main jet carries the exact sizing — #110 — required to maintain the correct fuel-to-air ratio in your carburetor. Confirm the jet size against your machine's carburetor specification before ordering, as multiple jet sizes are listed across Honda's carburetor service catalog.
Key Features
- Exact OEM Jetting — the #110 calibration is sized to Honda's specification for correct fuel delivery and metering; an incorrect jet size will cause rich or lean running conditions that affect power and fuel consumption.
- Broad Fitment Coverage — listed for Honda GX390, GX440, GX630, GX660, GX690, GXV630, GXV660, and GXV690 engines, the EB10000 generator, and HS928, HS1332, HSS928, and HSS1332 two-stage snow blowers.
- Serial Number Awareness — Honda supersedes carburetor jets at production breaks, so verify your machine's serial number against the fitment table before installing to confirm part number 99101-ZH8-1100 is correct for your unit.
- Restored Carburetor Performance — a worn, corroded, or incorrectly sized main jet causes hard starting, erratic throttle response, and excessive fuel consumption; replacing it with the correct OEM jet restores clean fuel delivery across the operating range.
The main jet is a precision-metered orifice inside the carburetor's main fuel circuit. Fuel is drawn through it under engine vacuum, and the orifice diameter — in this case, #110 — determines how much fuel enters the airstream at mid to full throttle. Because the jet's bore controls the fuel-to-air ratio directly, even a small change in size shifts the mixture rich or lean, affecting power output, combustion temperature, and exhaust emissions. A jet that has been partially blocked by varnish deposits or damaged during cleaning will produce the same symptoms as a wrong-size jet — stumbling under load, black smoke, or a hot, lean stumble — making replacement with the correct OEM jet an essential part of any carburetor rebuild or service.
Part Details
| Part Number | 99101-ZH8-1100 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Main Jet (#110) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EB10000 | All |
| Horizontal Shaft Engine | GX390, GX440, GX630, GX660, GX690 | All |
| Two-Stage Snow Blower | HS928, HS1332, HSS928, HSS1332 | All |
| Vertical Shaft Engine | GXV630, GXV660, GXV690 | 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.
