A two-cycle engine, which relies on the mixture of gas and oil to function, powers a gas chain got. To start it, one must pull a cord. The advantage of using a gas powered chain saw is that running without shoes is in a position performing durable tasks. Being equipped with 16-20 inch chain bars, these saws are in a position cutting through very dense wood. They operate outside of another power supply. This makes the saws useful in cleaning up after earthquakes and storms because discovered that function since there is gas and oil to be able to use.