Hello all, I've got a question, I'm getting back at my 750 after a few years, I completely disassembled my bike and I powdered the frame, now it's goin back together but I want to do a compression test be for painting the engine so my question is what all do I have to assemble in order to do this? I know I need to install the carbs, do I need the air box or can I do it without it? Do I need the exhaust? Also in my Honda shop manual it says to warm up the engine before doing the test, is that necessary? Any help would be appreciated. Thanks