Live in an area where you won't be needing your gas-powered tools for the winter? Such as your lawnmower, trimmer, and any other tools you need gas to operate. If you store them away for the winter and come back to use them during the spring time and realize your tools are acting funny, it may be because the gas you left in them has turned into a gel and has damaged the carburetor. You can do a number of things to protect your power tools from such a thing, you can dump all the gas out of them and either dispose of it properly or transfer it to your snowblower. Another thing you can do is start up your tools and let them run for about 15 minutes so you can add new fuel in the carburetor so it doesn't stick in there.