My poulan 2300 stopped starting so I found a broken piston ring and a dried up cylinder gasket. Replaced them today and now the saw fires and runs for 1-2 seconds. I start it with my finger on throttle like the instructions say. It just basically fires hard and then dies. Just hoping I could get some suggestions. Hopefully it is just the carb needing tuned but I kind of doubt it because I've tried and lot of configurations trying to start it.