The Honda 99101-124-0700 Main Jet (#70) is a genuine OEM carburetor main jet designed for an exceptionally wide range of Honda engines and power equipment. This #70-sized jet is listed across dozens of Honda applications, including GC160, GC190, GCV160, GCV170, GCV190, GCV200, GS190, G200, GV200 engines, F401, F500, F501, FR500, and FR500 tillers, HR21, HR216, HRA216, HRB217, HRR216, HRT216, and HRX217 lawn mowers, HS520, HS521, HS522, HS55, HS621, HS622, and HS720 snow blowers, WA20, WA30, WB20, WB30, WT20, and WT30 water pumps, E1500, ED1000, EG1500, EM1600, and EM1800 generators, and BF5 and BF50 outboard motors. Because the #70 jet size is shared across many different carburetor assemblies, confirm the part number 99101-124-0700 against your machine's serial number and carburetor model before ordering — Honda supersedes and cross-lists carburetor jets at service breaks, and what fits one unit in a series may not fit another.
Key Features
- Genuine OEM Fuel Metering — Honda-sourced original equipment jet with a calibrated #70 orifice that controls the fuel-to-air ratio at the carburetor's main circuit, keeping the engine running at the mixture Honda engineered for it.
- Direct Carburetor Replacement — this jet installs directly into the carburetor main jet port; because it is an OEM part, it matches the original orifice geometry without any modification.
- Broad Cross-Application Listing — part number 99101-124-0700 appears across Honda engines, tillers, lawn mowers, snow blowers, water pumps, generators, and outboard motors, including GC160, GCV160, HRX217, WT30, and BF50 applications, among many others.
- Verify Before Installing — Honda lists multiple jet sizes across closely related carburetors; confirm this #70 size and part number 99101-124-0700 match your specific carburetor assembly and serial number to avoid a lean or rich running condition.
The main jet is a precisely sized metering orifice inside the carburetor that controls how much fuel enters the engine's air stream at mid to full throttle. The diameter of the jet's bore — in this case calibrated to the #70 specification — determines the fuel delivery rate, so an incorrect or worn jet causes the engine to run lean (too little fuel, risking overheating and power loss) or rich (too much fuel, causing rough running, fouled plugs, and excess emissions). Replacing a clogged, corroded, or incorrectly sized jet with the right genuine OEM component restores the carburetor to the fuel metering Honda specified for the equipment.
Part Details
| Part Number | 99101-124-0700 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Main Jet (#70) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | E1500, ED1000, EG1500, EM1600, EM1800 | All |
| Horizontal Shaft Engine | G200, GC160, GC190, GS190 | All |
| Lawn Mower | HR21, HR216, HRA216, HRB217, HRR216, HRT216, HRX217 | All |
| Outboard Motor | BF50 | All |
| Portable Outboard Motor | BF5 | All |
| Single-Stage Snow Blower | HS520, HS521, HS621, HS720 | All |
| Tiller | F401, F500, F501, FR500 | All |
| Two-Stage Snow Blower | HS55, HS522, HS622 | All |
| Vertical Shaft Engine | GCV160, GCV170, GCV190, GCV200, GV200 | All |
| Water Pump | WB20, WB30 | 6122041-9999999 |
| Water Pump | WA20, WA30, WT20, WT30 | 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.
