One of my ignition coils went bad on my 91 9.9 force and I can not find one anywhere!!!! It is the electrical ignition system, (no points or condensers) the ignition coil is light blue with a black and grey wire. It is made by prestolite and it is stamped with a 4592 on the bottom. I checked on this site and they offer a new type ignition system that replaces mine since it is obsolete. Do I have to change flywheels? Or anything else if I buy that? I've checked all around the country at boat junkyards and online just about everywhere. They all say "good luck"