I just got my 1991 KX80, and it's my first 2 stroke mixed bike, so I was just wondering the gas/oil mixture rate for these bikes? I've looked a round some people tell me 50/1, 40/1, 32/1 .. what do you guys personally use? And what oil should I be using? Just normal 2 stroke oil like i'd be putting in my snowmobile or any specific type? thanks