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Sean LesterAug 10, 2025
How to fix Cub Cadet 21AB455C710 Tiller engine that fails to start?
- MMark MerrittAug 10, 2025
If your Cub Cadet Tiller engine won't start, several factors could be at play. First, ensure the fuel tank isn't empty and that you're using fresh gasoline. If equipped, check that the throttle control lever is in the correct starting position. A blocked fuel line could also be the culprit, so try cleaning it. Also, make sure the choke is in the ON position and that the spark plug wire is securely connected. Lastly, the spark plug itself might be faulty, requiring cleaning, gap adjustment, or replacement.