Help Please With Possible Battery Or Starter Relay

Discussion in 'Bonneville' started by Jimnibob, Apr 20, 2018.

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  1. Jimnibob

    Jimnibob New Member

    Oct 28, 2015
    7
    3
    Worksop
    Possible battery or starter relay with Triumph Bonneville T100 (2003)

    Hi,

    I have come to get my bike out for the summer and discovered that the battery was flat. I have re-charged it, but the bike will not start. The ignition lights come on and the indicators work, but the headlight will not come on. When I press the starter button there is a loud clicking noise, which seems to be coming from the area of the starter relay.

    Is this a battery issue because it has not re-charged sufficiently or could it be something else?

    Cheers

    Jimnibob
     
  2. Hack Driver

    Hack Driver Well-Known Member

    Oct 12, 2017
    455
    63
    Denton, Maryland USA
    Since you hear the click, I would check the volts on the battery to make sure it is fully charged. Even though your charged it, it could have a 'dead' cell or it could be to weak to start the bike. Depending on how you made the connections to charge it, you may have blown a fuse or fried some other part, but it really just sounds like a weak battery. Also, make sure the kill switch is in the run position. :)
     
    • Agree Agree x 1
  3. Jimnibob

    Jimnibob New Member

    Oct 28, 2015
    7
    3
    Worksop
    Thank you.

    Will it be the starter relay I can hear clicking? If so, I am assuming the fact it is clicking means that it is OK.
     
  4. Hack Driver

    Hack Driver Well-Known Member

    Oct 12, 2017
    455
    63
    Denton, Maryland USA
    I don't know. You will have to listen to where the sound is coming from. It could be a relay or the starter motor starting to engage, but not having the power to actually turn the engine over. If your battery is more than ~5 years old, I would be highly suspicious of it, and verify the voltage first.
     
    • Agree Agree x 1
  5. Callumity

    Callumity Elite Member

    Feb 25, 2017
    3,358
    800
    Nr Biggar
    The starter relay is behind theh RH side cover. It clicks audibly when energised. As others have said, the overwhelming probability is that the battery is shot. Try jump leads from a (non running) car. That will prove that all else is in order. The lack of headlight illumination suggests nominal voltage but zero amperage.....a dead battery.
     
  6. Callumity

    Callumity Elite Member

    Feb 25, 2017
    3,358
    800
    Nr Biggar
    • Useful Useful x 1
    • Agree Agree x 1
  7. mpllineman

    mpllineman First Class Member

    Feb 12, 2018
    826
    500
    Pearl,Ms.
    I agree with the weak battery, but be sure to check that kill switch. Who among us hasn't learned that lesson? Good luck!
     
  8. Ken walburn

    Ken walburn Noble Member

    Jun 28, 2017
    888
    300
    Essex
    Sounds like battery to me for what it's worth, relay will click even with discharged battery. How old is the battery, not the bike?
     
  9. Essexboy

    Essexboy Active Member

    Apr 16, 2017
    183
    43
    Essex
    I'd definitely change the battery, with many modern bike batteries once they've gone flat they never seem to take a full charge again. I don't know if Bonnies are susceptible but I have heard attempting to run the bike with a duff battery or jump starting from a car can cause damage to parts of the electrical system.
     
  10. Essexboy

    Essexboy Active Member

    Apr 16, 2017
    183
    43
    Essex
    I'd definitely change the battery, with many modern bike batteries once they've gone flat they never seem to take a full charge again. I don't know if Bonnies are susceptible but I have heard attempting to run the bike with a duff battery or jump starting from a car can cause damage to parts of the electrical system.
     
  11. Rudeboy

    Rudeboy Senior Member

    May 2, 2017
    402
    113
    Bristol
    Easiest way to determine the battery goosed is drop test it connect your multimeter if you have one then load it up turn all the lights on and press the start button if the volts drop out then you know its a dead cell.
     
    • Useful Useful x 1
  12. BigCLM

    BigCLM Senior Member

    Nov 30, 2017
    1,017
    243
    San Rafael, CA
    Batteries that just sit will discharge (totally normal) but are actually damaged over time. Recommend to always use a maintenance charger while the bike is not in use if possible. I use a Battery Tender Junior and my batteries have always lasted many years.
     
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