Hi there guys. I have looked hi and low, but to no avail. I have a 1990 evinrude 25 hp, E25resb to be specific. I have had this motor for three years now. Up to now I have had to pull the cover off and place my hand over the carb until it would start to fire up. It runs great after that, but after it cools off from sitting, I have to pull the cover all over again. I just cleaned the port where the primer squirts the gas past the carb, and now the primer seems to work as it should. My question is, what is the proper procedure for this primer system? It seems as though there is a position the knob wants to stay in just short of being pushed all the way back in, where there is a red line just visible on the knob. Thank you for any knowledge that will be thrown my way. I hate not knowing exactly how my engine is supposed to run, but I can't wait to start my engine on a cold January morning and not have to take off the cover!