Originally Posted by juggler
Latest developments: I just took the charger off the battery. It's barely reading 12 volts. I put the key in, hit the starter button, and got one turn, then it stopped and wouldn't turn again.
At least this sounds like the relay isn't fried. Yes? I hope?
I will try to secure a new battery today, otherwise, it may be sitting this way until next weekend.
Any advice on attempting to jump-start it... or not? I have another motorcycle battery (for my R75) sitting here with a good charge on it (I think).
My advice would be to check the level of the water and adjust as it is most likely down. Look at the inside as you inspect with a good light.
If you see any sulfating (crud) don't fiddle with this battery. Get a new one as the discharge from the previous owner probably started the decay of the battery.. it only takes one discharge to start the battery to the point of no return.. no matter how old the battery is.
The relay seems OK.. the problem with the relay is it sticks with low voltage and the excessive current will fry the contacts and welds then closed.. You probably don't have enough current available with this battery to ruin the relay.
Keep playing with it and you might..
IMHO the cost of the battery to the possible damage you can do with trying to start it with a poor or bad battery is not worth it. The $100 or so dollars that you spend on the battery will be returned to you while you own the LT.. If your lucky enough to have the LT for a significant amount of time you will need a battery anyhow. The problems you have in your garage could be 100 miles away from home in a month...
I have reasonable luck with batteries because I always keep my LT on a battery charger. My Battery Tender connection is always sitting ready to be attached to the bike. In season when I know I will be out of town for even a day I connect and fire up the Tender. At the first sign of battery problems... slow cranking I replace my battery. The car, M/C or anything that I have that has a battery.. it is a very cost effective diagnostic technique to replace a battery.. If you think about it even a 100 month battery (that costs out to a $1 a month in hardware costs) that shows any sign of failing at say 60 months... is only $40 extra cost... put that cost against shop labor or your time stranded and trying to get started.
Bottom line is if you don't have a float charger.. (like a Battery Tender) this is the time to invest in a new battery and float charger.. I've owned a float charger for will over 20 years.. I bought my current Battery Tender after I had a $5 1 amp charger ruin a $75 battery after I forgot to remove the charger...
The outrageously priced 'Battery Tender' has paid for itself multiple times.