I'm using an 8hp log splitter, I split for about 2 hours and it worked great, then It started to sputter a bit so I figured it was running out of gas. I grabed the gas can and filled the tank , but the engine stopped just as I was filling it up. When I went to restart it, I used no choke cuz the engine was warm,.....it would not start on the first pull, and the pull rope was very slow to wind back up. I tried about 20 times more each time waiting 2 minutes for the pull cord to wind back up. it sputtered a few times but I could not get the dang thing started. I really hope I didn't break it cuz I borrowed it from a friend. Any Ideas what I'm doing wrong?