Speed Twin Won't Start After Drop

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.

 

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.

 

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

 

Indeed, it's on the parts diagram for my bike.

 

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.

 

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.

 

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.

 

Let us know what the final diagnosis is, OK?