electronic ignition

Hello, I have 79CB750F and I have timing problems and replaced everything aside from the pulse generator, does anybody have replacement parts or changes for it?

I installed Dyna S electronic ignition and Dyna coils 6 or 8 months ago and its been great, but recently it started blowing the main15 amp fuse, It doesn't blowing it right away after replacing it, usually after riding it 30 mins or so.... I can turn the key on and touch the fuse and feel it...