Why Does My Lawn Mower Only Start After Letting It Sit for a Few Hours?

If your lawn mower only starts after letting it sit for a few hours, it could be due to several reasons:

  • Fuel starvation: The carburetor may not be getting enough fuel to start the engine. Check the fuel level and ensure that the fuel line is not kinked or blocked.
  • Ignition problems: The spark plug may be worn or fouled, preventing the engine from igniting. Clean or replace the spark plug if necessary.
  • Electrical issues: A loose or corroded electrical connection can cause intermittent starting problems. Inspect the wiring and connections for any damage.
  • Starter malfunction: The starter solenoid or motor may be faulty, preventing the engine from turning over.
  • Valve problems: Leaky or worn valves can affect the engine's compression and make it difficult to start.

Related questions:

  • What is the best way to clean a carburetor? Clean it with carburetor cleaner and compressed air.
  • How often should I change the spark plug? Every 100-150 hours of use.
  • What is the most common electrical issue with lawn mowers? Loose or corroded connections.
  • Can I fix a starter solenoid myself? Yes, if you have some mechanical experience.
  • How do I know if my valves are leaking? Listen for a ticking noise while the engine is running.

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