First of all, I'm a newbie and I'd like to say Hi to everyone on the board. I've been reading this board for a long time now and figured it's finally time to register. Being an original 2-stroke guy, I'm not that educated on the 4-stroke technology, but my next bike WILL be a 4-stroke, and I want to learn about them before I make my purchase. Anyway, on to the question.. Why are the 4-stroke engines so hard to start? And why are they even harder to start when they're hot? I understand they have very high compression, but figured that would only cause trouble in kicking them over, not how they actually start.