2001 Vulcan 750 Battery Problem?

Discussion in 'Texas Bikers' started by Richard Thompson, Aug 27, 2003.

  1. Hello Everyone.

    I own a 2001 Vulcan 750. I went out this morning and tried to start it,
    after only sitting for a couple day and it acted like the battery was dead,
    just clicked once and everything went dead. This evening, I cleaned the
    terminals and jump started it. I started right up. I let it run for about
    15 minute, then took it for a quick ride. Within 1 mile of the house, all
    of a sudden, it lost all power, looked like I lost most of the
    electrical.Funny thing was, when I wasnt giving it any throttle, the lights
    were brighter. I looked at the RPM gage and it was jumping from 3000 to
    7000 rpms, but the engine wasnt doing that, it was lopping. Finally it
    died. I got it towed home and checked the battery with a DVM. After
    sitting for about 10 minutes, the voltages was 12.25, but trying to start
    it, it dropped
    to about 6 volts. Could a bad battery do all that happened to the bike or
    is something else in the works. I am going to take the battery down
    tomorrow to get it checked out, but have a feeling they will tell me it is
    bad, but not sure if that is the finally answer. Hate to go on a long ride
    and it dies on me again.

    Any advice will be greatly appreciated.
    Richard Thompson, Aug 27, 2003
    1. Advertisements

  2. Richard Thompson

    Bill1100 Guest

    Richard, it is not at all unusual for a motorcycle battery to turn to toast
    in two to three years. I've never had one last more than about 30 months,
    if memory serves. Do you keep it properly filled and on a battery tender
    when not riding regularly? I needed to replace the battery in my 2000 BMW
    at exactly two years - and I ride quite a bit.

    You're lucky you discovered your dead battery in your garage instead of,
    say, down in the Big Bend with the temperatures at 110 degrees...LOL

    Bill1100 - Dallas, TX
    2000 BMW R1100RT
    Bill1100, Aug 27, 2003
    1. Advertisements

  3. electronic tach will do that when the voltage is irregular/low, the
    charging system is straining to charge a battery that won't hold juice
    and the voltages for the systems are marginal. makes for funny stuff
    i want to say the battery should be closer to 14V at full charge.

    the battery isn t going to regain electricity by just sitting, the
    energy to recharge it has to come from somewhere as in a battery charger
    or the elec. system on the bike. it dropping to 6V that quickly shows
    you've got dead cells that won't hold a charge. batteries will croak
    with little warning this time of year, the heat gets to them. a 2 year
    old battery is probably due for a change, especially if it sat for
    periods without being charged up by riding or hooked to a battery tender.

    the rule of thumb i've understood is a ~1% loss of charge for each day
    sitting idle. age and heat then combine to reduce the capacity of the
    charge it can hold. even maintained, batteries still go after a while,
    it's a regular replacement item like tires. just replaced a 3 year old
    battery on a ford truck a couple of weeks ago, had the same symptoms as
    your bike. runs like a champ now.

    simply amazing, aint it... if it was a flashlite, you'd replace the
    batteries and never give it a second thought...


    '73 R75/5 Toaster (not for sale)
    '99 R1100RT (in use)
    '00 FLHRCI (sold!)
    IBA, EIEIO, IOU, PDQ etc blah blah
    another viewer, Aug 27, 2003
  4. Richard Thompson

    Bill Walker Guest

    I ride a 800 Vulcan.. '96 model.. My battery is the no maintenance and
    dry cell type.. Last year the electrical problems commenced and since
    the battery was original equipment, I immediately changed it.. That's
    a lot of years for a motorcycle battery.. Never had that kind of
    service for a battery before.. Then we went to Austin for the ROT
    rally and it was an all day hard run since we drifted down through the
    back highways.. That night during the stage out for the parade of
    bikes, while sitting at an idle for an extended time.. Clonk.. my
    engine died and the battery was dead as a hammer.. Push started and
    made it back to the motel.. Next morning, still dead battery.. I was
    mad as hell because my brand new battery "died" on me within two weeks
    of installing it.. Got it into Woods and their tech took a look at
    it.. After a good quick charge on the battery and tightening the
    terminals, I was on my way.. No problems since.. Don't just jump and
    buy another battery until you have explored all possiblities..

    Your friend in Irving
    Bill Walker
    Bill Walker, Aug 27, 2003
  5. I took the battery to woods and their test machine showed it had a bad cell
    in it. So I bought a new one. Now it will be time for the test. Hopefully
    it all works out..

    Thanks everyone
    Richard Thompson, Aug 28, 2003
  6. Well, new battery in and the bike starts and runs good. I checked the
    charging circuit and it is reading 14.5 vs. So now the test, a ride :)

    Talk to yall soon
    Richard Thompson, Aug 28, 2003
    1. Advertisements

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.