Well I took the advice and got the top cover off and it looked good. When I drained the oil out, I found that there wasnt much oil to drain. Now I know why it seized ... Also took the side cover off and I find a broke stud and a washer that goes below the half-circle weight. What is that mechanism called/for? Since there was no stud holding the small guide in place, it damaged the chain guide as you can see below.