I've personally found that leaving gas in is fine, under two conditions: 1. You use ethanol free gas. This is more expensive, but it's also the same gas I run

I've personally found that leaving gas in is fine, under two conditions: 1. You use ethanol free gas. This is more expensive, but it's also the same gas I run in all my lawn equipment so I generally have some around during the summer months. 2. If you plan on letting it sit for awhile use a fuel stabilizer in it. But yea, a safe thing to do is to run it out of fuel, especially if you have ethanol in it, because that shit will kill the plastic parts in the carburetor if it sits. Once it's out of fuel, run it every month for awhile with some new gas in it just to keep it running and active. You'll want to run it long enough that you burn out any potential water in the oil, so let it get to normal operating temperature and run it for a bit longer and you should be good. This is also good for electric start models which have a battery or capacitor that will need a regular recharge.