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Benjamin PowellSep 4, 2025
How to fix a Generac Power Systems Portable Generator that starts hard and runs rough?
- MMatthew MaldonadoSep 4, 2025
If your generator starts hard and runs rough, it could be due to: * A plugged or damaged air cleaner. Check or replace the air cleaner. * Defective spark plug(s). Clean, re-gap, or replace the spark plug(s). * Incorrect fuel regulator setting. Set the fuel regulator. * Incorrect fuel pressure. Confirm fuel pressure to regulator is 10–12 in. water column (19–22 mm mercury) for LP, and 3.5– 7 in. water column (9–13 mm mercury) for natural gas. * Fuel selector in the wrong position. Move the selector to the correct position.










