96 GL1500Se with 48k on it.
Riding yesterday, two-up, after running around doing some errands. Cruise cuts out and won't re-engage. I fiddle with the pedals and grips to see if I've got something out of place. Nothing. No big deal; I'll sort it out when I get home.
A few miles later the dash starts flashing, and I lose engine power. It backfires a couple of times, then dies. I coast off to a stop.
When I try to start it, I don't even get a solenoid click, and the dash lights don't cut out like they should. A few minutes later, someone stops and offers jumper cables. After five minutes on the cables, it'll crank weakly. After 20 more minutes on the cables, it starts and idles well, until we pull the cables off. Then it dies within about a minute. By the time the tow truck got there, it had charged for another 20-ish minutes, and I was able to drive it up onto the flatbed.
With it being a 96, and the OEM alternator, (and 22 years old), I'm assuming my alternator has gone bad.
Here's my troubleshooting so far:
- Bike off, battery shows 12.8 volts without having been charged since my breakdown. It's on a trickle charger now.
- Bike started fine. At choke idle (about 2k RPM), battery showed 14.1 or so
- At regular idle with no real load, battery showed 13.8 or so.
- At regular idle with radio, driving lights and cruise turned on (but parked) it showed 12.7-ish
I know I need to check it at the alternator, but I don't know what points to test on the alternator.
I think I can do the repair itself, and I'm leaning toward the Lactrical. I just want to make sure I'm doing the right thing. PO says the battery is just a couple of years old.