If you can’t get a small engine started, it takes too many pulls to get it going, or it runs poorly, ask yourself this: Did it sit for a long time with gas in it? Like over the winter? If so, your problem is most likely a corroded or gummed-up carburetor. Small engine repair shops earn about 50 percent of their revenue by cleaning or replacing carburetors sidelined by old gas. Look at your lawnmower carburetor next time you sharpen the blades or complete a lawn mower tune-up.
Before you start taking things apart, take a minute to confirm the carburetor is the problem. We’ll show you how to do that, as well as how to clean, rebuild or replace a lawnmower carburetor. Either way, you’ll save about an hour of shop labor (about $70). You can complete the carburetor rebuild project in a single morning, including the time scouting for parts.
Start Your Engine (At Least Try)
- Confirm that the fuel valve is on, there’s gas in the tank and the spark plug is in good shape.
- Shoot a one-second burst of aerosol lubricant or carburetor cleaner down the throat of the carburetor.
- Yank the cord.
- Note: If the engine runs (even just sputters) and dies, you have a fuel problem. If there’s no life after a few tries, it’s something more serious and you need to haul the engine to your garage for some detective work.
Article source here: How to Repair Small Engines: Cleaning the Carburetor
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