Several months ago I posted that my 1600MS with 31,000 miles on it was making funny engine noises. I received many recommendations regarding what the problem could be. Well, after 2 months in the Kawasaki shop they finally got to it and it turns out to be the oil pump bearing. The tech told me it was something he has never seen. So, a new pump and it will be good to go. Oh, and after I pay them $2300! I told them to replace the rings while they had it down. Fortunately the problem was found before it damaged anything else.