The Pilot was fitted with a reliable easy to set up ignition. It really is a good ignition. I see no reason to change it, why do you feel it needs to be changed? Is it the proper Pilot one with the "crab" shaped cap, or the commercial one with a sort of flat domed cap, that the leads are secured with grub screws in side the cap? The latter mentioned one has a four lobed cam in it, and is also very good. The only problem with either of these is the inability of New caps. But a good nick old one will last eons.
Martin.