Symptoms Of A Flat Battery.

Discussion in 'Bonneville' started by Malcolm Woods, May 16, 2020.

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  1. Malcolm Woods

    Malcolm Woods Senior Member

    Sep 16, 2019
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    norfolk
    Ok away from my previous threads and onto something more triumph serious, I have a 2011 T100.
    On a few occasions when wheeling the bike out of the garage having had the battery on charge for couple of weeks, when I press the starter button she sounds like the battery is flat, but... persevere and she eventually will go. the previous owner told me about this so expected it..
    My point is I cannot believe I am the only one who have this slight problem ???? never encountered this other bikes I have owned. Is there a fix for this does anyone know of.
    Thanking you all.
    Mallywoods.
     
  2. littleade

    littleade The only sane one here
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    Mar 17, 2015
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    How old is the battery Mally?
     
  3. Malcolm Woods

    Malcolm Woods Senior Member

    Sep 16, 2019
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    Less than 4 months.
     
  4. Samsgrandad

    Samsgrandad Senior Member

    Dec 15, 2019
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    Have you checked the wiring and connections? Any dirty or loose connections? Is the main fuse clean and firm?
     
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  5. littleade

    littleade The only sane one here
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    Mar 17, 2015
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    Are all the connections to the battery, starter etc tight and corrosion free. Do you have a multimeter to check what the voltage is across the battery when you press the starter then again on the starter to see if the power is getting through. Other than that I can't help.
     
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  6. littleade

    littleade The only sane one here
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    I was going to say real Triumphs had a kick start but thought better of it......
     
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  7. littleade

    littleade The only sane one here
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    Mar 17, 2015
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    Another thought-did you change the battery/were the same symptoms there with the old one. If they were then it sounds like it's not the battery
     
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  8. freck

    freck Elite Member
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    May 4, 2017
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    Does it do this every time or do the symptoms change slightly?
    I’m just thinking it could be a faulty starter solenoid, or even the starter itself.
    As littleade says though, a good clean/ check of connections from the battery to the starter would be the first steps.
    Good luck with getting the problem sorted.
     
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  9. Malcolm Woods

    Malcolm Woods Senior Member

    Sep 16, 2019
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    Please tell me ,,, have I a problem, thought is is not unusual on our bikes???
     
  10. freck

    freck Elite Member
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    Not being a T100 owner I can’t say that it isn’t a quirk of the model, but being an engineer makes me think there is a problem if it’s not working as it should be expected to. :confused:
     
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  11. crispey

    crispey crispey creme de la creme

    Nov 6, 2014
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    I’d say there’s a problem. Give us a clue! It obviously has been happening since you’ve bought the bike but was that 3 months ago or pre your new battery? If you can’t hook your bike up to a known good battery and see if it still happens then, as said above, give everything a good clean up and check
     
  12. Malcolm Woods

    Malcolm Woods Senior Member

    Sep 16, 2019
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    Ok thanks for the reply, it did the same with the old battery that's why I bought a new one, I will check clean earth connections and check tighten every thing.today.
     
  13. Tigcraft

    Tigcraft Not Well Known Member
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    Mar 29, 2014
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    What are the symptoms? Does it just click pause click pause click etc? If so is it a fast series of them or is there a good full second between the clicks? If you run a test wire directly from your positive to the starter solenoid (small tab) will it turn over successfully?
     
  14. Malcolm Woods

    Malcolm Woods Senior Member

    Sep 16, 2019
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    Yes your right click pause 3 or 4 times then the engine turns, sometimes the engine turns on the button first time.
     
  15. jeffrey vale

    jeffrey vale New Member

    Sep 7, 2019
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    Had similar problem with my old t100 and it was the starter relay,changed it for one off flea bay, no more probs.
     
  16. Rocker

    Rocker Elite Member
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    If you get a click it sounds like a bad connection from the solenoid to the starter motor or a bad starter motor but could also be the solenoid change the cheapest parts first
     
  17. Callumity

    Callumity Elite Member

    Feb 25, 2017
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    I have a slightly more mature T100. With a healthy battery it has never hesitated. Your intermittent symptoms smack of a poor connection (earth strap stud underside rear gearbox?), lazy relay etc. I would squirt the fuse box and multiplugs (don’t forget inside headlamp shell) with electrical cleaner (Halfrauds aerosol) and wiggle. At nearly 10yrs old you can reasonably expect mild corrosion and the odd tired component.
     
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  18. Tigcraft

    Tigcraft Not Well Known Member
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    What’s the time between pauses?
     
  19. thebiglad

    thebiglad Old fart, still riding !

    Sep 25, 2013
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    Hi Mally, I had a 2010 T100 for about 5 yrs and the only time I had symptoms like yours was when I had to replace the battery. Even though it was on charge when not ridden it didn't hold a charge. So I would charge it, measure the voltage across the battery terminals and get a reading of perhaps 12.7v but as soon as I tried to fire her up, all I got was a click. When I connected a known-good car battery with jump leads she would fire up like a good'un.

    Apparently the ECU senses battery voltage and if it is below a certain threshold (12.5v I believe) the ECU won't allow an engine start. I think it's got something to do with protecting the sprag clutch.

    So, bottom line is you need a good quality battery operating to it's optimum. Yuasa is the make I would recommend for a std. bike battery.
     
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  20. SprinterII

    SprinterII Noble Member

    Mar 27, 2020
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    Second the, earth connection.
     
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