[The Vol-can]

OK. The light bar is fed from its own circuit independent of that used for the headlight and turn signals, per the recommendation of Wolf and others. I'll try to explain the setup by following the flow of current starting at the battery.

The positive terminal of the battery leads through a 30-amp in-line fuse to the 30-amp relay (post 85). Post 86 leads directly to the negative terminal of the battery. The switch on the relay (post 30) is fed directly from the ignition switch. The lone wire from the light bar is connected to the relay on one of two posts marked 87. The lone wire then leads to the front of the bike where it feeds into one side of the on-off switch located on the light bar itself. The other lead of this switch is connected to the single leads coming from the two lights on the light bar. Since there is not a second wire coming from the lights on the light bar I am assuming them to be grounded to the frame. The turn signals are wired together at the headlight with the negative leads (black/yellow wire) connected to each other and the gray wire is connected with its blue or green counterpart.

Have checked continuity throughout the setup and it all checks out. Used circuit tester to test relay with ignition switch both on and off and it checks out. New battery was picked up already charged last Tuesday. Have had two minor runs on the bike since then. Unplugged battery from bike last night because it seemed so drained of energy. Reconnected it today and all I could get when attempting to start the bike the first time was some rattling in the starter relay. Engine would not turn over. Lost even that much activity in the starter relay very shortly thereafter.

Question: Does the 30-amp relay used in the light bar circuit have to be connected to both the positive and negative post of the battery? Would removing the connection to the negative battery post and grounding it to the frame make any difference?

Question 2: why do I have to switch the turn signal positive leads in order to get the proper turn signal sequence for each turn signal light?

Also added a Back-Off brake light modulator to the electrical system. Negative lead connects to the negative post of the battery, the red lead connects to power coming from the wiring harness, and the white-red lead connects with the wire coming from the taillight that lights the brake lights.

When fully connnected, there are two leads arising from the positive battery terminal (wiring harness and light bar circuit) and three leads connected to the negative terminal (wiring harness, light bar and tail light modulator).

Sorry for such a long post. Wanted to be sure I explained the wiring situaitn in enough detail for you to get a handle on what I face. Should you need more information, just ask and I will get back with you as soon as I can. Any help would be most appreciated, as the outdoor weather is getting really nice...