Honda 99101-124-0720 Main Jet (#72)

The Honda 99101-124-0720 Main Jet (#72) is a genuine OEM carburetor component listed for an exceptionally wide range of Honda equipment, including BF100, BF5, BF50, BF75, and BF8 portable outboard motors, E1500, ED1000, EG1500, EG2200, EM1600, and EM1800 generators, F401, F500, F501, FR500, and FR500 tillers, G200, GC160, GC190, and GS190 horizontal shaft engines, GV200 vertical shaft engines, HR21 lawn mowers, HS50, HS520, and HS720 snow blowers, and WA20, WA30, WB20, WB30, WT20, and WT30 water pumps. Because this jet size is catalogued across so many different carburetors and machine types, confirming that the #72 sizing matches your specific unit before ordering is essential — Honda supersedes and cross-lists main jets at service intervals, so verifying part number 99101-124-0720 against your machine's serial number and carburetor model is the most reliable approach. As a genuine Honda OEM part, this Main Jet (#72) is manufactured to the same specification as the original and is supplied through Honda's authorized parts network.

Key Features

• Genuine OEM Fuel Metering — the #72 orifice size is calibrated to Honda's specification for correct air-fuel ratio and consistent fuel delivery across the carburetor types that list this jet
• Wide Cross-Machine Listing — catalogued for a broad range of Honda equipment including outboard motors, generators, tillers, lawn mowers, snow blowers, water pumps, and horizontal and vertical shaft engines; always verify the jet size against your carburetor before installing
• Direct OEM Drop-In — threaded to the same specification as the original jet, this part installs directly into compatible Honda carburetors without modification
• Serial Number Verification Recommended — Honda lists multiple jet sizes for many of these platforms; check your machine's serial number against the fitment table to confirm the #72 is the correct size for your carburetor
• Restored Fuel Delivery — a blocked or worn main jet disrupts the fuel circuit, causing hard starting, rich or lean running, and power loss; replacing it with the correct OEM jet restores proper carburetor function

The main jet is a precision-metered orifice inside the carburetor's main fuel circuit. It controls how much fuel is drawn into the airstream at mid-range and full throttle, and the calibrated hole size — in this case #72 — determines the air-fuel mixture the engine receives under load. When a main jet becomes blocked with varnish or debris, the engine runs lean, loses power, or refuses to rev cleanly; when it wears or is replaced with an incorrect size, the mixture shifts rich or lean and fuel economy and performance both suffer. Installing the correct OEM jet ensures the carburetor meters fuel exactly as Honda engineered it for the specific engine or machine it serves.

Part Details

Compatibility & Fitment

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.