I have a 1976 Chrysler 55HP outboard, it has 2 points & condensers under the flywheel and 2 externally mounted coils on the side of the block. One set of the points keeps going bad. I have replaced the points and condenser twice and have even tried to some fine sand paper between the points. The sand paper does a temporary fix but within days is bad again. Can I change this old troublesome system over to a more modern system, such as a eletronic ignition. Or if you have any other suggestions PLEASE feel free to intervine.