DO NOT forget and let it overheat! warpage can occur. these engines don't take well to it. 1st things 1st. Thermostat. Don't let the parts guy talk you into a Thermostat gasket. You won't need it. it's metal and reusable. I should rephrase that. Don't listen to the parts guys except for Londart. A Forum member that knows better. <img src="/forums/images/graemlins/smile.gif" alt="" /> anyway. The thermostat is common to fail on these, but they're cheap and easy as hell to replace. You'll need uh.. a 10mm socket and wratchet! That's about it. And it's right at the front of the motor. I'd rather do that twice to doing the spark plugs, lol. Anyway, that very well should be it. <img src="/forums/images/graemlins/kewl.gif" alt="" />