fyi, i happen to come across a few Ta200s who has this
problem.
after checking, going thru the bike, taking it apart, lots of
advice from mechs,etc etc....
we finally came out with a conclusion.... and that is....
MANFUCTURING FAULT. some of our bikes do not have this problem even
after we thrash it ard. so i guess lucky matters?
just my 2 cents worth