I just got this sled about 150 miles ago, or more. and I went to start it the other day, and I noticed, the left cylinder, was "tapping" and it was not warming up. I got spark and fuel, I also noticed that there is some "movement with sound" when I play with the Primary clutch sheave. I thought maybe it is a Rod bearing or the counter balance bearing. Can anyone shed some insight to "How Bad it Is?" ikind of wanted to get some parts coming before I tear into it.