My 98 225 Ocean Pro won't shut off when the key is turned to the off position. It acts like it drops some of the cylinders but not all. It dosen't do this everytime and I can kill it by putting it in gear. I replaced the key switch and that did not help. I think it is a bad ground or connection but I do not know where to look. Pulling the kill switch does not help either. If you have any suggestions on what to look for I would appreciate it greatly.