I have a 2003 Polaris Trailblazer that I am doing some work on. It has been sitting up for about 2 years and I am trying to get it running again. When I try to start it with the spark plug in it doesn't want to turn over (almost sounds like a starter issue) however when I pull the plug out it turns over with no problem. Is this a sign of a compression issue or something major with the motor. Thanks for the help.