I have a 1985 60 hp Evinrude that will not start at times. It is in the starting circuit. I replaced the selonid and it didn't solve the problem. When it happens the starter selonid makes a buzzing noise.The battery is fully charged and i get 12.5 volts at the starter selonid.I am getting only 4 volts at the selonid switch terminal. I can jump the selonid and it will start. the ignition switch checks out ok. I have clean all trminals. Does anyone have an idea where this could possible be. It is a intermittent problem.