just wondering if anybody can provide a good mechanical explanation for my own peace of mind with regards to the frequently talked about rear differential chattering noise that our machines are known to make. as you all know my last T Rex had a horrible rattle that Kawasaki finally realized and issued me a replacement machine as a result.
my new T Rex is running great and I am very happy at this point with everything!! however I still hear the same chattering in the rear differential as before but not nearly as bad or loud. one thing that I notice is my T Rex sounds awesome for the first 10 minutes of every ride and from that point forward once its warmed up, that chattering noise will come back and stay for the rest of the ride. I just wish it sounded the way it does when its cold all the time. I'm just trying to learn and understand from a mechanical standpoint what is actually happening in the rear that causes this noise?
I'm not trying to complain about it or beat a dead horse but I just want to understand what exactly is happening and why that sound is present by design?