A stalled or surging Toro lawn mower often points to a clogged or damaged carburetor, and replacing the unit is a practical fix for restoring proper fuel flow. Before purchasing a replacement, you must verify the exact engine type, as Toro mowers use different carburetors for Kohler, Tecumseh, and Briggs & Stratton engines. The process involves draining old fuel, disconnecting lines, and installing a new unit with fresh gaskets to prevent leaks.
Homeowners frequently encounter this issue after storing a mower for the winter, where ethanol-blended fuel can leave varnish that blocks the tiny passages inside the carburetor. Rather than attempting a difficult internal cleaning, many owners opt for a direct replacement, which is often more cost-effective than professional repair. This guide outlines the specific steps to identify the correct part, prepare the mower, and complete the swap safely. For context on other maintenance tasks, see our guide on removing mower blades.
Pros
- Precise fit for the specified Toro and Kohler models
- Sturdy build that withstands vibration and fuel exposure
- Simple swap-out installation saves time and money on repairs
Cons
- May not fit models with a linkage on top of the carburetor – verify before purchase
- Does not include a gasket or mounting hardware (may need to reuse original parts)
- Limited to specific engine platforms – not universal for all Kohler or Toro engines
If your Toro Recycler Model 20370 with the Kohler 6.75 149cc engine is running rough, stalling, or refusing to start, the carburetor is often the culprit. This RARELEMON replacement carburetor is an affordable, ready-to-install solution that gets your mower cutting again without a trip to the shop.
This is not a universal part – it's designed specifically for the Toro Recycler 20370 and Kohler 6.75 motor combination. That means bolt-on fitment and no guesswork, provided you check the linkage style (see the note about the top linkage). For DIY homeowners who maintain their own lawn equipment, this is a straightforward swap that can save a lot of frustration.
In terms of real-world use, a fresh carburetor fixes the most common fuel-delivery problems: surging under load, hard starting after storage, and uneven idle. The RARELEMON unit appears well-made with clean castings and proper gasket surfaces. Installation is simple – remove the air filter housing, swap the carburetor, reattach fuel line and control linkage, and you're done. Expect improved throttle response and reliable startup.
Build quality is solid for an aftermarket part. While it may not carry the OEM branding, the materials feel durable enough to handle heat and fuel. The only caveat is fitment: RARELEMON clearly states that this carburetor lacks a top linkage, so if your old one has that arm, this won't work. Always compare with the product images before ordering. Also, you might need to reuse your old gasket or buy one separately.
Overall, this is a practical, budget-friendly repair for anyone comfortable with basic engine work. If you own a Toro 20370 with the Kohler 6.75 and need to fix a rough-running mower, this carburetor is worth the low price. Just double-check your model and linkage type first, and you'll be back to mowing in under an hour.
Brand: RARELEMON
Product Group: Automotive Parts and Accessories
Compatible Models: Toro Recycler Model 20370, Kohler 6.75 149cc Motor
Package Includes: 1x Carburetor as pictured
Important Note: This carburetor does not have a linkage on top. Verify your old carburetor configuration before purchase.
Pros
- Complete kit with all commonly needed replacement parts for a single purchase
- Affordable price compared to individual OEM parts or shop labor
- Restores mower performance when symptoms like surging or hard starting appear
- Easy to install for anyone with basic mechanical skills
Cons
- Fitment depends on linkage style so you must verify your old carburetor has the top linkage before buying
- Not a universal kit; only works on specific Toro and Kohler engine models listed
- Some users may need to adjust the carburetor settings after installation for optimal tune
If you own a Toro 22 Recycler lawn mower powered by a Kohler 149cc engine, you already know how well these machines can cut when they are running right. But over time, carburetors clog, gaskets leak, and filters get dirty. That is where the Ferilter XT675 149CC Carburetor Tune-Up Kit comes in. This is a direct replacement kit designed for the Kohler XT6.75 and XT650 series engines found on Toro models like 20371, 20377, and 20378.
This kit is best suited for homeowners who want to keep their mower running strong without paying for expensive shop repairs. It includes a new carburetor, air filter, spark plug, fuel filter, gaskets, a shut-off valve, and clamps. That is everything you need for a complete fuel and air system refresh. In real-world use, the carburetor restores smooth idle, eliminates surging, and helps the engine start easily again. The included spark plug and air filter are standard replacements that further improve combustion and engine life.
Build quality is good for the price. The carburetor body is made of sturdy aluminum and plastic, and the gaskets feel solid. One thing to watch: there are two different carburetor designs for these engines. This one has a linkage on the top. If your old carburetor does not have that top linkage, it will not fit. Make sure to compare before ordering. Otherwise, the kit installs easily with basic hand tools. The included shut-off valve is a nice extra that lets you stop fuel flow for storage or repairs.
A realistic drawback is that this is not a universal fit. It only works on the specific engine models listed in the description. Also, after installing, you may need to fine-tune the idle mixture screw to get perfect performance. But for most users, it will be a plug-and-play improvement.
Overall, if your Toro Recycler 22 is running rough or won't stay running, this kit offers a practical and cost-effective solution. It is a solid choice for DIY homeowners who want to save money and extend the life of their mower without professional help.
The Ferilter XT675 tune-up kit comes with the following components:
- 1 carburetor (replaces 14 853 68-S)
- 1 air filter (replaces 14 083 15-S)
- 2 gaskets
- 1 fuel hose
- 1 fuel filter
- 1 spark plug
- 1 shut-off valve
- 4 clamps
Everything is included to complete a basic tune-up on compatible Toro and Kohler engines.
Pros
- All-in-one kit eliminates the need to buy parts separately
- Restores power and smooth operation on older or poorly running mowers
- Simple installation with clear instructions, suitable for beginner DIYers
- Good value compared to OEM replacement parts
Cons
- May require minor carburetor adjustment after installation for perfect idle
- Not compatible with all Toro or Craftsman models, so verify fitment before buying
If your Toro or Craftsman lawn mower is running rough, stalling, or guzzling gas, the Toobop Carburetor Kit offers a straightforward fix. This complete tune-up set includes a carburetor, air filter, spark plug, gasket, fuel pipe, and two hose clamps. It is designed specifically for Toro 21442, 21321, GTS 140cc and 150cc models, as well as the Craftsman M110 with CMXGMAM1125499. Instead of buying individual parts and hoping they work together, this kit gives you everything in one box for a simple weekend upgrade.
This kit is best suited for homeowners and DIYers who want to keep their mower running reliably without paying a shop. The carburetor is built from durable materials that resist ethanol-related corrosion, a common issue in modern fuel. The included spark plug and air filter help restore proper combustion and airflow, which translates to smoother starts, better throttle response, and fewer stalls on thick grass. For anyone who has dealt with a surging engine or hard starting, this kit can bring your mower back to life.
Installation is straightforward. You remove the old carburetor and air filter, swap in the new parts, and reconnect the fuel line using the provided clamps. The gasket ensures a tight seal, and the spark plug is pre-gapped for most engines. Most DIYers can finish the job in about 30 minutes with basic hand tools. That said, you may need to tweak the idle mixture screw after installation to dial in the perfect idle speed. This is common with aftermarket carburetors and is easy to do.
Build quality is good for the price. The carburetor feels solid, the gasket fits snugly, and the air filter is properly sized. The fuel pipe is flexible and resists cracking. One realistic limitation is that this kit does not include a fuel filter, so you should clean your tank or add one separately if your mower has debris issues. Also, while it fits many Toro and Craftsman models, double-check your specific engine model number before ordering.
Overall, the Toobop Carburetor Kit is a smart buy for anyone with a Toro or Craftsman mower that is due for a tune-up. It saves money over dealer repairs, restores lost performance, and includes all the essentials. If you are comfortable with basic engine maintenance and want to keep your mower running strong through another season, this kit is a practical choice.
Brand: Toobop
Model: Engine carburetor Air filter kits
Compatible Engines: Toro 21442, 21321, GTS 140cc/150cc; Craftsman M110; CMXGMAM1125499
Included Parts: 1 carburetor, 1 gasket, 1 fuel pipe, 1 air cleaner filter, 1 spark plug, 2 hose clamps
Item Weight: 1.32 pounds
Product Dimensions: 5 x 5 x 2 inches
Material: High-quality metal and plastic components
Recommended Use: Lawn mower tune-up and maintenance
Pros
- Complete tune-up package at a fraction of OEM cost: everything needed for a carb swap in one purchase.
- High-quality materials (brass, anodized aluminum) resist ethanol fuels and temperature changes better than cheaper plastics.
- Easy to install with step-by-step guides online: suitable for intermediate DIYers with basic mechanical skills.
- Tested to simulate actual engine operation, reducing the risk of return trips to the parts store.
Cons
- Fit depends on exact engine model number; double-check before buying, as some Tecumseh variants use a different carb pattern.
- Not an OEM Toro or Tecumseh part; long-term durability may not match genuine components in commercial use.
- Only one spark plug included, which may not be the correct heat range for all conditions; check spec before using.
The Harbot 640350 carburetor kit is designed for Toro 22 inch Recycler lawn mowers equipped with Tecumseh LV195EA, LEV120, LV195XA, and similar 4.5 to 6.75 HP engines. It replaces OEM part numbers 640350, 640303, and 640271, and comes as a full tune-up bundle including carburetor, air filter, fuel filter, fuel line, spark plug, primer bulb, and gaskets. This kit is best suited for DIY homeowners and part-time landscapers who want to revive a sluggish or hard-starting mower without spending hundreds on dealer service.
In real-world use, the carburetor delivers reliable starting after a simple bolt-on installation. The factory calibration is precise enough for most residential mowing needs, from trimming a small lawn to tackling tall grass in one pass. The all-in-one nature of the kit eliminates the hassle of sourcing individual components, and the included fuel line and filter help flush out old, varnish-laden fuel. Build quality is solid for the price: brass jets and an anodized aluminum body resist corrosion from ethanol-blended gas, while the zinc-plated bowl adds weight for better sealing.
On the worksite or in the workshop, this kit shines as a quick fix for mowers that won't stay running or hesitate under load. The included air filter and spark plug are adequate for standard use, though heavy-duty commercial operators might prefer OEM parts for extended durability. A realistic drawback is that you must verify your engine's exact model number; even minor variations in the Tecumseh line can change the carburetor mounting pattern.
Installation is straightforward for anyone comfortable removing a plastic shroud and two bolts. Clearances are tight but manageable, and the kit's gaskets fit snugly to prevent vacuum leaks. For the price, this is a no-brainer upgrade for a worn-out mower carb; it restores performance and cuts down on frustrating pull-starts. If you're a mechanic or contractor maintaining a fleet of Toro 22 mowers, buying several of these kits preemptively can keep your crew running through the whole season.
This kit includes: 1 carburetor (pre-assembled and calibrated), 1 air filter, 1 fuel filter, 1 piece of fuel line (1 foot), 1 spark plug, 1 primer bulb, and all necessary gaskets. All components are new and ready to install. No additional parts or tools are required beyond a standard socket set and screwdrivers.
Replacing the carburetor on a Toro mower is a mechanical task that requires careful identification of the engine series. The first step is not to remove the old part, but to locate the model number on the mower’s data plate and the engine’s specification plate. This ensures you buy a replacement that matches the throttle linkage and fuel inlet orientation. Most replacement kits include the necessary gaskets, fuel hoses, and clamps, which simplifies the reassembly process significantly.
| Engine Series | Common Toro Models | Key Carburetor Identifier |
|---|---|---|
| Kohler XT6.5/XT6.75 | 20370, 20371, 20377, 20378 | Vacuum choke pull-off, 149cc displacement |
| Tecumseh LV195/LEV120 | 20016, 20017, 20018, 20069 | Throttle side mounting 46mm, Choke side 35mm |
| Briggs & Stratton 6.75HP | 22 Recycler (various) | Part numbers 799866, 790845, 799871 |
Before you begin, gather the necessary tools and safety gear. You will need a set of socket wrenches, pliers, and a container to catch old fuel. Wearing safety glasses is essential because old fuel can be corrosive and may spray when disconnecting lines. Ensure the mower is on a flat, stable surface and the engine is completely cold to avoid burns.
- Locate the model number on the mower deck or engine plate.
- Drain the fuel tank and disconnect the fuel line from the tank.
- Remove the air filter cover and detach the air filter assembly.
- Disconnect the throttle and choke linkage cables from the carburetor.
- Unbolt the carburetor from the intake manifold using the appropriate socket.
- Inspect the gasket surface for cracks or debris before installing the new unit.
Identifying the Correct Carburetor Replacement
Toro mowers do not use a universal carburetor; the design varies significantly by engine manufacturer and year of production. For example, a Kohler 149cc engine used in the Toro 20371 requires a specific carburetor with a vacuum choke, while a Tecumseh engine in the Toro 20016 uses a different mounting pattern. Confusing these parts is the most common reason for failed repairs, as the throttle linkage may not align correctly.
Check the product description for the specific engine model numbers. Many replacement carburetors, such as those for the Kohler XT6.75 series, list compatible engine codes like XT650-2027 or XT675-2034. If your engine has a linkage on the top of the carburetor, ensure the replacement part explicitly states it includes that linkage. Some users find that comparing the physical shape of the old carburetor to the product images is the most reliable way to confirm a match before purchase.
Draining Fuel and Preparing the Mower
Old fuel is the primary cause of carburetor failure, so draining the tank is a critical safety and cleanliness step. Place a container under the fuel tank and open the drain valve if your model has one, or use a siphon to remove the remaining gasoline. This prevents fuel from spilling onto the engine or the new gasket during the swap. It also removes varnish that could transfer to the new carburetor.
Once the tank is empty, disconnect the fuel line from the tank to the carburetor. Use pliers to loosen the hose clamp and slide the line off the fitting. Be prepared for a small amount of fuel to leak out, as the line may still contain liquid. Wipe down the area around the intake manifold with a rag to ensure a clean surface for the new gasket. A clean mating surface is vital for preventing air leaks that can cause the engine to stall.
Removing the Old Carburetor and Linkages
Remove the air filter cover and the air filter itself to expose the carburetor. This is often the easiest access point for the top bolts. Disconnect the throttle cable and the choke cable from their respective levers on the carburetor. Take note of how these cables are attached, as you will need to reattach them in the same position to ensure proper engine speed control. If the cables are rusty, a small amount of penetrating oil can help free them.
Locate the bolts that secure the carburetor to the intake manifold. These are typically located on the top and side of the unit. Loosen these bolts carefully, as the carburetor may be stuck due to corrosion. Once the bolts are removed, lift the carburetor away from the manifold. Inspect the old gasket and remove it completely from the manifold surface. If any pieces break off, use a plastic scraper to remove them without scratching the metal surface.
Installing the New Carburetor and Gaskets
Place the new gasket from the replacement kit onto the intake manifold. Ensure it is centered and flat against the surface. Align the new carburetor with the gasket and the manifold holes. Hand-tighten the mounting bolts first to ensure everything is aligned, then use a socket wrench to tighten them securely. Do not overtighten, as this can crack the plastic carburetor body or warp the gasket. The goal is a snug fit that prevents leaks without damaging the components.
Reattach the throttle and choke cables to the correct levers on the new carburetor. Verify that the throttle moves freely when you pull the cable and that the choke plate opens and closes as expected. Connect the fuel line to the new carburetor inlet and secure it with the new hose clamp provided in the kit. If your replacement kit includes a new fuel filter and primer bulb, install those components as well. This ensures that clean fuel enters the carburetor and that the engine primes easily for startup.
- Center the new gasket on the intake manifold before placing the carburetor.
- Hand-tighten all mounting bolts before using a tool to secure them.
- Verify that the throttle linkage moves smoothly without binding.
- Install new fuel hose clamps to prevent fuel line leaks.
- Check that the choke cable is attached to the correct lever.
- Ensure the air filter is reinstalled securely before starting the engine.
Testing the Engine and Checking for Leaks
Before starting the engine, inspect the area around the carburetor for any obvious fuel leaks. Check the fuel line connections and the gasket area for drips. If you see fuel pooling, tighten the hose clamp or the mounting bolts as needed. Once you are satisfied that the installation is secure, refill the fuel tank with fresh, clean gasoline. Do not use old fuel from the tank, as it may still contain contaminants that could clog the new carburetor.
Start the engine and let it idle for a few minutes. Listen for any hissing sounds that might indicate a vacuum leak. Check the engine performance; it should idle smoothly and respond to the throttle. If the engine stalls or runs rough, double-check the throttle linkage and the fuel line connections. It is normal for the engine to run slightly rich when cold, so allow it to warm up before judging the final performance. For more on maintaining engine components, see our guide on mower blade bolt direction.
Troubleshooting Common Post-Installation Issues
If the mower fails to start after the carburetor replacement, the most likely cause is air in the fuel line. Prime the system using the primer bulb if your model has one, or manually pump the fuel line to remove air bubbles. Another common issue is a misaligned throttle linkage, which can prevent the engine from reaching idle speed. Adjust the cable tension so that the throttle plate is slightly open at idle.
A fuel leak at the gasket usually indicates that the old gasket was not removed completely or that the new gasket is not centered. Remove the carburetor again, clean the manifold surface, and reinstall with a fresh gasket. If the engine runs but surges, check the fuel filter; a clogged filter can starve the engine of fuel at higher RPMs. Regular maintenance of the fuel system, including using fresh fuel, can prevent the need for frequent carburetor replacements.
Completing the carburetor replacement restores the fuel flow to your Toro mower, ensuring reliable starts and consistent cutting performance. By verifying the engine model, using fresh gaskets, and checking for leaks, you can avoid common pitfalls that lead to repeated repairs. Store the mower with fresh fuel or add a stabilizer to prevent future varnish buildup in the new carburetor.
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