I know that if you attempt to start a ski-doo with the incorrect d.e.s.s. tether it has a rev limiter @ like 3000 rpm. Intermittently, I find that my sled will act like this @ first start up and If i wiggle the tether connection it will clear up. I really don't want this to happen way back in the woods, has anybody had this problem? Do you think I should replace the tether or is there bigger issues?