A gasoline chainsaw is a portable and versatile cutting tool powered by a gasoline engine. It is commonly used for various outdoor tasks, including tree felling, pruning, and cutting firewood. 

      > Check the petrol (fuel) supply and add petrol if required.

      > Take all the necessary safety precautions.

       

      > Check the chain brake and engage it so that the chain don't move while operating.

      > Turn the on/off switch to the "on" position and open the choke.

      > Press the fuel primer button several times to fill the fuel from the tank into the carburetor.

      > Pull the starter cord then push the choke back in halfway when the engine starts to turn over. Pull the starter cord again. 

      > Adjust the choke to the “run” position once the engine is running.

      > Allow the engine to be idle for about a minute to get warm and start working.

      > Turn the on/off switch to the “off” position when you’re ready to stop your chainsaw.