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Small engine primer bulb. The primer bulb draws additional fuel into the carburetor to help start the engine.

Tecumseh carburetor repair kit. If the carburetor is clogged, the engine won't get enough fuel. As a result, the engine may not start or may run poorly.

Kawasaki pump-priming bulb. Fits select Kawasaki FJ180V engines.

Briggs & Stratton Original Equipment 498260 Carburetor Overhaul Kit. If the carburetor is clogged, the engine won't get enough fuel. As a result, the engine may not start or may run poorly.

Primer bulb. The primer bulb draws additional fuel into the carburetor to make the engine easier to start. If the primer bulb is leaking, replace it.

Primer bulb

Primer repair kit

Honda Carburetor (BB62W B). If the carburetor is clogged, the engine won't get enough fuel. As a result, the engine may not start or may run rough. The carburetor can often be cleaned or rebuilt, but sometimes it may need to be replaced.

Briggs & Stratton carburetor primer bulb. The primer bulb draws fuel into the carburetor to make the engine easier to start.

Small engine carburetor. If the engine runs rough, then the carburetor may be restricted and unable to supply enough fuel and air mixture to the engine.

If the carburetor is clogged, the engine won't get enough fuel. As a result, the engine may not start or may run rough. The carburetor can often be cleaned or rebuilt, but sometimes it may need to be replaced.

Body-primer

Rebuild Kit

Tecumseh carburetor repair kit.

Carburetor needle & seat kit. Comes with installation instructions. The float needle allows fuel to enter the float bowl. If the float needle is stuck closed, the engine will not get fuel and thus will not start.
A clogged or failing carburetor is the #1 reason Toro mowers won't start or sputter through a mowing season. Repair Clinic stocks genuine OEM Toro carburetors and rebuild kits engineered to your exact model—no guessing, no compatibility headaches. Summer's here, and your lawn isn't waiting.
Whether you need a complete carburetor assembly, gasket set, or fuel inlet needle, we have what professional technicians and homeowners trust. All parts backed by manufacturer specs and our parts expertise.
Need the right part? Find your Toro model number on the equipment frame or manual, then browse our Toro lawn mower parts by serial number for instant matches.
Toro carburetors can accumulate varnish and fuel deposits, especially when gas sits idle during off-season storage. Ethanol-blend fuel accelerates this. A carburetor rebuild kit or new gasket set often solves starting issues—much cheaper than a full replacement and a reliable fix Toro owners rely on.
Look for a label on the mower deck frame, usually near the handle or under the seat. It starts with "Toro" and includes a 4–6 digit model number. Write it down and cross-reference it here—we'll show you the exact carburetor assembly or kit that fits your machine.
Absolutely. A carburetor rebuild kit with gaskets, seals, and O-rings is a proven, affordable fix for rough running or won't-start problems. Repair Clinic carries Toro-specific kits and detailed rebuild guides so you can service the carburetor yourself—no dealer markup needed.
A complete assembly is ready to bolt on and is best if your carburetor body is cracked or severely damaged. A rebuild kit contains gaskets, seals, and internal parts to refresh your existing carburetor. Choose the kit if the housing is sound—it's the budget-friendly path that still restores full performance on Toro mowers.


Keep your Toro lawn mower running efficiently by replacing a faulty carburetor promptly. With same-day shipping on most in-stock items, you'll have your replacement part fast, minimizing downtime. Our model/part number lookup finds the exact OEM part for your unit, and every order is backed by our 365-day return policy and price-match guarantee. If your Toro lawn mower carburetor is failing — showing symptoms like reduced performance, unusual noise, or complete non-operation — replacement is typically the fastest fix. Browse our full library of Toro repair resources for troubleshooting guides and installation videos.
Toro prints the model number on a label attached to the mower deck frame, often near the handle or rear of the deck. On some Toro lawn mowers, you may also find it under the seat or on the engine housing, so check those areas if the deck label is missing or worn. Your owner's manual may list it, too. Make sure you record the model number, not just the serial number, then enter it in the model number lookup to narrow the complete Toro lawn mower parts catalog to parts built for your machine. This applies to every associated part, including carburetors, blades, belts, filters, and more. The result is a faster, more accurate match with fewer wrong orders.

Repair Clinic's online repair library helps Toro Lawn Mower owners and technicians work through the diagnosis and installation. Troubleshooting videos, symptom articles, and part testing walkthroughs help you determine which component has failed. Once you know what to replace, use the model number lookup to confirm the exact OEM part, then follow the matching installation video from start to finish.

Repair Clinic has five ways for you to stop your lawn mower from leaking gas. Before we get to those, let's review how the gasoline you pour into the tank powers the mower.

Why does your lawn mower battery keep dying? Repair Clinic has done the research and this article will provide some answers, starting with what a battery's purpose is on a gas-powered lawn mower.

What's causing that black smoke to billow out of the engine? There are three likely reasons and they are all related to how a gas-powered lawn mower engine operates.