Here is a pic of the cam chain adjuster on my 03 TE610E, as you can see it is different than the newer version. I have removed a phillips head cover to reveal the part you see in the center. It has the 6 teeth you can see and a threaded hole with a slotted head screw(dark color), I guess, in the center. Is this a manual or automatic adjuster? What do I need to do to check the timing chain slack? The engine is very similar to the newer version just some of these types of details are different.