Fixing the Plug Welch Carburetor on Your Small Engine

If you're struggling with a rough-running mower or a chainsaw that just won't idle, you might need to look at the plug welch carburetor components to see if they're still doing their job. Most of us who spend our weekends tinkering in the garage have run into these little silver discs at some point. They don't look like much—just tiny, slightly domed pieces of metal—but they play a massive role in how your engine handles fuel. When they leak or get clogged behind, your Saturday afternoon chores can quickly turn into a frustrating battle with a pull-start cord. ...

February 9, 2026 · 7 min · Dennise Yuko