The Honda 99101-ZN1-0940 Main Jet (#94) is a genuine OEM carburetor component designed for the GX670 horizontal shaft engine. As a factory-original part, this jet is manufactured to Honda's exact flow specifications, ensuring the correct air-fuel mixture delivery that the GX670 carburetor is calibrated for. Honda supersedes parts at serial breaks, so confirm your engine's serial number against the fitment table to verify that part number 99101-ZN1-0940 is the correct jet for your unit.
Key Features
- Exact Fuel Flow Calibration — as a genuine Honda OEM jet, this #94 size is drilled to the precise orifice diameter required for correct fuel metering in the GX670 carburetor; a wrong-sized jet causes rich or lean running that a replacement cannot correct.
- GX670 Fitment — listed for GX670 horizontal shaft engines; confirm your serial number against the compatibility table before ordering, as Honda issues superseding part numbers at serial-range breaks.
- Prevents Rich or Lean Conditions — a worn, corroded, or improperly sized main jet causes hard starting, poor throttle response, and excessive fuel consumption; installing the correct #94 jet restores clean, stable engine operation across the load range.
The main jet is a small precision-metered orifice seated inside the carburetor's main circuit. It controls the volume of fuel drawn into the airstream during mid-range and full-throttle operation — the #94 designation refers to the jet's orifice size, which is matched specifically to the fuel delivery requirements of the GX670 engine. When a main jet becomes clogged, eroded, or is replaced with the wrong size, the engine runs erratically, loses power under load, or produces excessive exhaust emissions; replacing it with the correct OEM part restores the carburetor's original metering accuracy.
Part Details
| Part Number | 99101-ZN1-0940 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Main Jet (#94) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX670 | 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.
