Installed the new voltage regulator and the new fusible link. The link wasn't needed, but installed it because I may never need it again. LOL I checked the voltage without it running and also while running at full power. The voltage was the same for all testing 12.24 volts at the battery. I installed a new head beam on the machine which worked w/the original light switch. Hope I can get the charging system going. Still has an open circuit of some type. Also, note worthy is that the only fuse spot on the machine that has no fuse in it is called the "O" circuit. The circuit area for this fuse does not indicate any circuits that are on it, which when putting a new 20 amp buzz fuse in, it quickly fries. Don't know that this is part of the problem, but everything else on the machine works including the horn.