Why is my Craftsman C459.60101 engine running erratically?
- Nnancy19Aug 16, 2025
Your Craftsman Lawn Mower engine might be running erratically due to: * The unit running with CHOKE activated. Deactivate the CHOKE. * Loose spark plug wire(s). Connect the spark plug wire(s). * A blocked fuel line or stale fuel. Replace the fuel line, fill the tank with clean, fresh gasoline, and replace the fuel filter. * A plugged vent in the gas cap. Clear the vent or replace the cap if damaged. * Water or dirt in the fuel system. Drain the fuel tank and refill with clean, fresh gasoline. * A dirty air cleaner. Replace the air cleaner paper element or clean the foam pre-cleaner, if equipped.