justin_o_guy2 wrote on 06/07/15 at 00:20:28:Good plan,,
Good plan. Now, after you have a voltmeter...
1. Check that you have it set up to measure DC voltage. Easiest way to do that is to check the volts on the battery before putting it back into the bike. Should be around 13-13.5 volts no-load on a brand new battery.
2. Clean both battery terminals. make sure there's no paint, plastic, or other crapola on them. Then clean the cables that attach to the battery.
3. Now, with the key off, connect the battery wires, positive first, then negative. When you hook the negative, look for any tiny sparks - there shouldn't be any, these bikes draw no power with the key off. They key is off I hope.
4. Check your battery voltage again, right at the terminals. Then turn the key on and check it again.
A voltage drop with the battery connected but key off indicates a short circuit somewhere. This is bad.
A small (0.5-1 volt) drop with the key on is normal... if all the lights come on.
No voltage drop at all indicates that you have something unplugged or a broken wire.
My guess is the likely diagnosis is a bad or dirty battery connection. Start there, see what you find, report back.