Hi: I bought a used M60 last summer with 320 hours. It has a LC Kawasaki. After using it for the summer, I found that the motors are very touchy, and 1 side (left) seems to be lagging a little. And I have to push forward & pull back often. Whenever I do that, it's hard to keep a straight line. Does anyone here know what I should do to make it easier to track and control? I've been reading the manual, but maybe someone here can give a few pointers as well.