Running On One Cylinder

Discussion in 'Technical Help' started by DucDuc, Nov 9, 2025 at 8:17 AM.

  1. Hi,

    Did a 200km ride some time ago on my 1098 and noticed some stutter. Now I realize this must have been some misfires. Ride the bike today and it lost power, I realize it was running one 1 cylinder.

    I did check the Ohm resistance between the negative of the battery and the frame, seems all fine. Is there anything you can advise I can check?
     
  2. first identify which cylinder then swap ignition cols around and see if the misfire follow's it.
     
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  3. Hi,
    I just had a similar issue. My horizontal coil was part of a misfire issue, just barely in spec (reading 600ish where spec on my 848 is 650 mΩ±50). Replacing that coil helped out a lot (and resetting the TPS). My issue was more about chasing gremlins for a 13 year old bike with 1,100 miles on it. Entire fuel system was trashed.
     
    #3 Atomic Monkey, Nov 9, 2025 at 9:06 AM
    Last edited: Nov 9, 2025 at 9:16 AM
  4. Yes. Best hope it is a coil pack, else eliminate the cheaper components IE. HT lead and spark plug. If not then it might be the ECU. More expensive but not difficult to replace.
     
  5. did that journey involve riding through heavy rain*? so many things, but as said, front cylinder coil pack comes to mind if so*
     
  6. there is a particular engine ECU Ducati used that was prone to failure causing a misfire. i've got a sneaky feeling that it isnt, but, i've no idea if it's used on your bike.
    my gut instinct is going to be a sparkplug/ignition coil or injector. swapping the coils being the quickest and easiest first step.
     
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  7. One step at a time and process of illumination! Check spark plugs ,see if you have spark.
     
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  8. Elimination
     
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  9. Yeah,I know retired engineer terminolgy and bad spelling!
     
  10. I love “process of illumination “
     
  11. It's illuminating when you find the fault!
     
  12. First thing I’d start with is a new ignition relay. That’ll make sure the pump, coils and injectors have a good supply.
    Check also to earth lead to the ecu.
    Coils are relatively common. If it’ll run, see which cylinder is down… it’ll have a cold or cooler exhaust header. Other than having removed the LHS fairing panel, you’ve got your bad cylinder, then you can look at coils or plugs.
     
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