Speed Twin Won't Start After Drop

Discussion in 'Triumph General Discussion' started by speedy_e, Apr 14, 2022.

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  1. speedy_e

    speedy_e New Member

    Mar 29, 2021
    1
    3
    Austin, TX
    Good morning, everyone. I need some help- I laid my bike down for the first time last night, and now it won't start. She sustained some minor cosmetic damage, but nothing else- she just won't start. I've heard about a "tip-over" sensor, but not sure what that is, or if there's one on my Speed Twin. Any ideas?
     
  2. Iceman

    Iceman Noble Member

    Apr 19, 2020
    930
    443
    Lancashire
    Hi speedy, the item is called a tilt switch, what you need to do is turn the ignition on and off a few times, this allows the EMS to detect all is well, then turn on the ignition again and press the starter button and it should start. The tilt switch is for safety and cuts the engine, otherwise if you had it engaged in gear, the rear wheel would still be rotating and either the wheel or chain could tangle up on your limbs or clothing causing injury.
     
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  3. speedy_e

    speedy_e New Member

    Mar 29, 2021
    1
    3
    Austin, TX
    Thanks Ice, I'll try that
     
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  4. brown mouse

    brown mouse First Class Member

    Sep 15, 2018
    2,010
    643
    East Midlands, UK
    There's a roll-over-valve in the petrol tank breather, which is just a one way valve to stop petrol coming out. Don't think that would stop engine starting, though if it got jammed I expect it would cause problems after a while if air couldn't get into tank to replace fuel being used.

    I don't know about sensor detecting falls and cutting engine. I know my 2018 Speedmaster doesn't have such a thing as I've had to use kill switch to stop engine when loosing balance is low speed manoeuvrers when I first got the bike.
     
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  5. Iceman

    Iceman Noble Member

    Apr 19, 2020
    930
    443
    Lancashire
    The Triumph part number is T2502455, this part fits a lot of Triumph models and I can assure you it is fitted, most riders are unaware it's on their machine nor the location
     
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  6. brown mouse

    brown mouse First Class Member

    Sep 15, 2018
    2,010
    643
    East Midlands, UK
    Indeed, it's on the parts diagram for my bike.
     
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  7. speedy_e

    speedy_e New Member

    Mar 29, 2021
    1
    3
    Austin, TX
    Well, I tried turning the ignition off/on a number of times, but no luck. A local mechanic suggested I try and jump it- that didn’t work either. Looks like I’ll be headed to the shop, boys.
     
  8. Ducatitotriumph

    Ducatitotriumph Crème de la Crème

    Apr 25, 2019
    2,126
    1,000
    Rothwell
    Clutch switch?
    If it fell on the LHS, its easy to dislodge it. Bike won't start if so.
    And, you won't get any errors either.
     
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  9. Iceman

    Iceman Noble Member

    Apr 19, 2020
    930
    443
    Lancashire
    Unfortunately what can happen depending on the impact from a fall, is the the part inside the tilt switch that activates the cut out on the engine can dislodge, and as the tilt switch is a sealed unit it can't be repaired easily, A new one is under £50, but a word of caution parts for a lot of models are on back order, your local Triumph dealership can look on their system to see if the part is available from any of the UK dealer network. What I have done for people in the past is fit one from a different manufacturer, all I did was cut the plug of of the OEM faulty one and re soldered the wires to the original plug and heat shrunk the joint making it look as good as the OEM one, it's a really easy fix when you are stuck.
     
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  10. Kinjane

    Kinjane Active Member

    Oct 15, 2017
    201
    43
    Bristol, Land of Enger
    Tilt sensor is located under the seat next to the tank and has the word UP on it. You could try unbolting it and giving it a shake to check that it rattles as it should and for a connection/disconnection with a multi meter or failing that a battery and a bulb.
     
  11. Jet City

    Jet City Noble Member

    Sep 24, 2018
    493
    313
    Seattle, Washington USA
    Let us know what the final diagnosis is, OK?
     
  12. speedy_e

    speedy_e New Member

    Mar 29, 2021
    1
    3
    Austin, TX
    will do- thanks for the input, everyone
     
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