I know that I have to replace my vacuum switch. It took almost two weeks for a new switch to come in. It looks like a pretty easy install, other than the tight fit. Is there anything I should know, other than disconnect wire, remove switch disconnect hose. Then install new switch, connect hose and wires? Is there something this is going to mess up that I don't know about? I know some fuel is going to come out - but will the oil injection be evacuated or effected at all?