Husqvarna Model#136 Serial#20033000836 chainsaw.

When I first start my chainsaw, it starts on the first or second pull and it will run perfect until it runs out of gas. I have to wait until it cools down, usually an hour or so, and then restart it. Also, if I start it, and I let it run 5 minutes and then turn it off, I still have to wait for it to cool off before I can start it again.

It has new spark plug, new air filter, and a new fuel line put in last November. I always use STA-BIL fuel stabilizer in my gas all year long. I have not used it since January, but this started happening today, after I ran about 4 tank fulls of gas through the saw. I always use 92% octane gas and all new gas.

Any help would be appreciated.