2000 Triumph Legend TT no spark I knew this bike did not start when I bought it. Cleaned all carbs because this is what the previous owner thought it needed. The bike will crank and the carbs are now getting gas. No fire at the spark plugs. I found a 12 pin connector under the seat just hanging there. What is it for? Has something been removed from this bike- like a computer or something? The 3 coils have power going to them. Why won't it start?

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14 Jul, 2017

  • 80%
    Solved this issue
  • 108min
    Time to fix
  • 64%
    Recommend to DIY
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Hi, Monty it's either a data link connector or your ICM is missing otherwise the usual suspects are:
1. Fouled spark plugs.
2. Severely discharged or a damaged battery should have 12.5 volts or more and be able to pass a proper "LOAD" test if necessary, you may have a preliminary reading of 12.5 volts or more but little or zero amperage the battery is faulty and must be replaced, AGM batteries fail in this scenario more so than lead acid batteries.
3. Check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
4. Loose connection at ignition coil or plug between ignition sensor and module.
5. Spark plug cables in bad condition, shorting/leaking, spark plug cable connections loose check for spark leakage in the dark.
6. Faulty ignition coil or electronic control module.
7. Faulty CKP, CMP, or BAS sensor.
8. Faulty ignition switch.
9. Tilt sensor needs a reset.
10. Security alarm failing to disarm needs reset
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
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Triumph Thunderbird Owner Manual
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