alright guys i recently put a 1975 70 hp johnson that had been sitting in my dads barn since about 1992 on a 17 foot caravelle. i did all the normal things replaced the plugs drained and put new greece in the lower unit and it started right up and seemed to be running fine but every time i get above 3000 rpm's the battery meter starts red lining. over charging. and then when i push the horn button the meter will drop all the way to the under charged line. ive run out of ideas hope someone can help. thanks
