Re: what did you do to your motor bike today? the reason it doesn't leak is that the head is thin enough it will bend when you torque it down. it is bad for the head. can someone else back me up? just because it works, doesn't mean it's a good way to do it.and if you get loeaks because one isn't torqued the same, that diffinetly means they are not flat. you will get no leaks if one bolt is torqued to only 5 ft/lb, but it will loosen quickly, if you have a good flat surface.