Let's try to stay positive. There's a lot of good information in this thread, too. .....and regardless of WHAT WHO says, there are different ways of adjusting preload and even on hydraulics, a difference between a light or heavy preload can make small differences in how the engine performs. Solids of course, show more response to those changes. I've just always had the best luck and performance using a light touch with only 1/4 to 1/2 turn.....which normally puts the preload in the .025-.040 range.
That's simply my experience. I'm sure others have had success doing it differently, and that's great.
