Is it brand new, or is it a year or two old? Did you store it in the off season upright and with oil in it? I had a similar issue with my Jiffy Pro4 Lite before I got rid of it and got the HC40. I had to take the carb apart and clean some residual oil that I think was in there from the manufacturer. It had a tendancy to kill while I was drilling a hole or shortly afterwards, it seemed hesitant when I'd give it gas. I then had problems starting my HC40 last year after I replaced the oil from the previous year. It was really hard to pull the first time, like it was stuck. I found out here, and confirmed with Eskimo, that even though their manual says you can store it upright for storing, you can't if there's oil in it, as it will get into the carb. So now I drain the oil before storing it, then put new oil in at the beginning of the season.