Looking for recommendations on books and resources that will describe the inner workings of bike engines, i suppose the stuff/curriculum that they would be teaching at bike mechanic courses. I've usually been able to get away with doing nothing more than light maintenance (fluid flush, oil changes, cleaning carbs/jetting, brake pad change, valve clearance checks), but as I'll be picking up a two stroke soon and have been told the maintenance intervals are shorter, I feel I need to start gaining an understanding of what I'm required to do and why I'm doing certain things.