Hi folks, need some tech support here. 2005 ST3 with a 4 year old battery. Always plugged into a tender. I went for a beautiful 40 minute ride and bike ran great, as it always does. As I was returning and going down my driveway, I stalled the bike (very rough driveway, so I go really slow). Or maybe it just chose that moment to die.
Lost all electrics. I switched off the ignition then switched back to on. No power. Nothing. No display to instruments, and pressing the starter button produced nothing and no sounds. Tried a few times. Dead Duc.
I then proceeded to check and reseat all fuses, disconnected the battery leads and cleaned the contacts and reattached same very tightly. swapped underseat relays with eachother. Finally, I removed the Magic Blinker units that I had recently installed and reconnected all lighting wiring back to original.
Tried igniton again: Totally dead instrument panel and ignition.
Put battery on tender for a few hours, and tried again, still dead. Voltage measured at battery was around 13.86.
This is the biggie: connected car battery to Duc batt, and bike electrics came back to life and engine started. All indicators on instrument panel looked good. I ran the revs up above 3000 and the voltage at duc batt measured 14.something. (this may have been the car voltage.) When I disconnected the jumper leads, the bike died, and would not restart. Only if jumper cables from care were attached. So, I cannot really measure the stator output or RR goodness because once I disconnect the running bike from the car batt, the bike goes totally dead.
Here is a very weird symptom to add: now, when I connect the bike battery, the immobilzer light and the turn signal indicator blink very rapidly, and a faint buzzing sound is coming from the instrument panel.
This makes me think that maybe the RR is bad. But, would a dead or marginal battery do this?
I am willing to buy a new batt to try, but only if the concensus is that it is the batt. Otherwise, to the shop she goes.
Thanks and hope to hear all the collected knowledge out there.