After the 2011 fall season, I ran it out of gas and put it away for the year. In the fall of 2012, I mixed up some new gas, filled it up and it ran like crap. It wouldn't stay running unless I almost constantly feathered the choke and when it did stay running it ran really sluggish. I gave up trying to use it and eventually dumped out the gas, ran it dry and put it away. I intended to look at before this fall, but somehow never got around to it.
I'd suspect a bad batch of gas - even though I had just mixed it - but the same gas worked fine in my string trimmer.
Well, yesterday, I needed to clean out SWMBO's flower beds and blowing the leafs out is so much easier than trying to rake them. I figured if I could get any wind out of the blower, it would help, so I mixed up a little bit of fresh gas and put it in the tank.
I set the choke, pressed the primer bulb a few times, and 3 pulls later it started right up. I went through 2 full tanks of gas without a single stall or any rough running.
OK... 'fess up! Who fixed my leaf blower?