I just read an old thread on this subject, but I lost a bolt and nut from my battery somewhere below my engine while I was trying to take it out the the ski to charge it. I know the two aren't magnetized because they are copper and I already tipped the ski up high on its trailer and tried flushing out the bottom of the ski with water-careful not to mess with the electric system. Does anyone have any other creative ideas?? This is driving me insane-especially since my mechanic told me I should try to get the bolts out because they could work their way into the oil-pan at the bottom of the engine.