Your lawnmower sputters and dies mid-mow. Or your chainsaw coughs like it has a bad cold. These stalls often come from a gummed-up carburetor, where old fuel leaves sticky varnish that blocks tiny fuel passages. That buildup happens because ethanol in gas attracts moisture. It turns to gum when tools sit unused. You face $50 … Read more
You pull the starter cord on your lawnmower. It sputters and dies right away. Or your chainsaw won’t fire up because fuel leaks everywhere. These issues stem from a brittle primer bulb or cracked fuel lines. Primer bulbs push fuel into the carburetor for easy starts on small engines. Fuel lines carry gas from the … Read more
Your lawnmower stalls every time you let off the throttle. Or your chainsaw bogs down under load. These issues stem from poorly tuned carburetor screws on small engines. Idle speed and high-speed mixture screws control smooth operation. The idle speed screw sets low RPM for stable rest. The high-speed mixture screw balances fuel at full … Read more
Picture this. You’re halfway through mowing the lawn on a sticky summer afternoon. Your mower coughs, sputters, and quits cold. You check the oil. It’s fine. Spark plug looks good. But that gas in the tank? It’s turned against you. Bad gas strikes when fuel goes stale, picks up water, or carries too much ethanol. … Read more
Picture this. You’re in your garage, firing up the old lawnmower for the first cut of spring. Gas spills everywhere as fuel overflows from the carburetor. The smell hits hard, and you worry about a spark igniting the mess. Moments like these happen because of a tiny oversight in the float and needle valve. This … Read more