I bought an Owatonna 330 skidloader this morning to use in my yard and for snow in the winter.It has solid rubber tires that i am not thrilled about but figured I could change them out later. Before I bought it,I started it and drove it around a bit,all seeemed well. I got it home and after about 20 minutes of use it acted like it ran out of gas. after a few minutes it restarted,then after about 5 minutes it did it again and finally restarted after a few minutes of fooling around with the choke,then died again after another 10 minutes of use and would only start and run as long as I fed starting fluid to it.After letting it sit for 2 hours,I finally got it started and used it for about 30 minutes without problem. Does anyone have any idea what the problem might be? Thank you