Bump Start

Discussion in 'Technical Help' started by bob1, Apr 1, 2018.

  1. bob1

    bob1 Noble Member
    Subscriber

    Mar 12, 2018
    510
    443
    Somerset
    probably a daft question because my speed triple only starts with the clutch lever pulled in does this mean you cannot bump start it.
     
  2. Johnjo

    Johnjo Senior Member

    May 29, 2017
    584
    243
    Birmingham
    Yes Bob you can bump it. Pulling in the clutch lever has something to do with not engaging the starter or summat like that. I'm sure a more technical explanation will come soon. :)
     
  3. tcbandituk

    Subscriber

    Apr 8, 2016
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    Don't know for sure, but thinking about it, it may be possible as I think the clutch switch just stops the starter from engaging.

    However, if you were bumping because of a flat battery, it would probably be difficult, if not impossible because of the power need for all the electrickery bits now i.e. the injectors etc.
     
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  4. thebiglad

    thebiglad Old fart, still riding !

    Sep 25, 2013
    5,072
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    If you don't have any juice in your battery, not only will the engine not turn over but the ECU, fuel pump and injectors will not work either, rendering a bump start extremely difficult.
     
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  5. crispey

    crispey crispey creme de la creme

    Nov 6, 2014
    7,331
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    I have bump started my tiger a few times with no problems apart from a near cardiac arrest!! Don’t forget you release the clutch on a bump start anyway
     
  6. Callumity

    Callumity Elite Member

    Feb 25, 2017
    3,362
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    Nr Biggar
    When you switch on your ignition circuit is live. If you are in gear you have to pull the clutch in to enable the starter circuit - otherwise when you press the starter it would be locked out.
    When you bump start you need a live ignition circuit but not the starter circuit. Being in gear is essential to turn over the engine once up to speed. The state of the battery will influence how hard you have to push to overcome cylinder compression AND turn over the alternator fast enough to generate a good spark.......but you need the clutch in to get moving at all.
    Hills are handy.
     
    • Agree Agree x 3
  7. Hack Driver

    Hack Driver Well-Known Member

    Oct 12, 2017
    455
    63
    Denton, Maryland USA
    I ride a T-Bird Commander and wouldn't want to try and jump it. I carry the lithium battery in the picture below. I actually had to use it to start the bike a few weeks ago. It worked like a charm. I've got plenty of storage on my bike, but it will fit in a large coat pocket and it doesn't weigh much. I picked it up at a Walmart for ~$50.00 US.

    Jump_Battery_040118A.jpg
     
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  8. thebiglad

    thebiglad Old fart, still riding !

    Sep 25, 2013
    5,072
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    THAT looks like the best answer HD - well done for suggesting it :p:p:p:p:p:p
     
  9. bob1

    bob1 Noble Member
    Subscriber

    Mar 12, 2018
    510
    443
    Somerset
    might get a top box to put it in :joy::joy::joy::joy:
     
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  10. chuk

    chuk Senior Member
    Subscriber

    Jan 10, 2017
    350
    113
    neilston glasgow
    there is a good selection of this type on Amazon easy to check buyers reviews so you get a good one.
     
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