Generator Won’t Start

When a generator won’t fire at all, the fix is almost always fuel, spark, air, or a gummed-up carb — in that order. These guides walk every common no-start cause and the cheapest test for each before you spend a dime on parts.

Generator Won’t Start: 9 Causes & How to Fix Each

Keith Schneerer / June 4, 2026

Generator won’t start? 9 common causes ranked by frequency, with field-tested fixes for each. The carburetor is behind two of every three stored-generator no-starts — here’s how to confirm yours.