My '12 is a track only bike and has been getting harder and harder to start. Today it was really bad and barely started despite installing a fully charged battery. The charging system is working normally (14v at idle) so no issues there. The starter sounds like its wheezing and and draws a LOT of current when turning over. Then, every once in a while it will kick over like nothing is wrong. I'm pretty sure its the starter but would like to confirm before buying one, is there any way to tell for sure?