My Technical Notes

Monday, 29 May 2017

Starting the Lawnmower the first time after Winter

You should remove the petrol of your lawnmower before the winter starts. There are different methods of doing this:

  • Using a pump to suction-out the petrol
  • Disconnecting the fuel-line to release the petrol (into a container).

The oil does not need to be removed. Engine oil has a lifetime of 10 years, which is probably longer than your lawnmower's. Do check the oil level though.

A dirty spark plug can stop a lawnmower from starting, so either get a new spark plug or clean your existing spark plug. To clean a spark plug, use acetone and a wire brush, then wash it and let it dry overnight. Ensure it is dust-free because it can get into your engine and cause it problems. Optionally, you can use a multimeter to test the continuity to check if it is thoroughly cleaned.

Now do these steps on your lawnmower, before attempting to start it:

  • Remove the spark plug
  • Press the primer bulb 10 times.
  • Pull the cord 15 times
  • Leave the lawnmower for 15 minutes
  • Insert the spark plug back in.
  • Press the primer bulb 10 more times.

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