What I'm gettin at is let's help the guy, maybe I miss interpreted your reply, maybe I didn't. I'm tryin to help him. I'm not being smart but I own 4 R's, 2 shees, zilla, and a t-4, plus 2 sleds, by the way I also have a shop. One other thing a R has that acts up is the counter balancer, if it has a bad bearing it will let the crank to come out of balance.