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Discussion Starter · #1 ·
I have a 2021 Ducati Diavel 1260 S Red

and the other day I got the Battery Service message on the dash i attached

I checked the manual it does not say anything about this message horrible user manual

i went on a ride today and about 2 hours into the ride the bike started stalling when I came to a light or stoppped

i immediately headed back home

I took the lower fairing off to check and after I disconnected the battery and the message went away but it comes back

I did some troubleshooting and so far I can confirm after starting the bike if I disconnect the battery the bike dies instantly it is not able to run off the generator and there is nothing wrong with the battery

oddly as I was riding back home on the Highway if I pull the clutch at 65 70 the bike dies and releasing the clutch it start s back up again and keeps going it does not seem to be a huge issue

does anyone know or can give me some advise on what it might be I have warranty but I wanted to see if someone has had this issue

i Am pretty sure the alternator or voltage regulator has an issue since the bike dies the minute I disconnect the battery the bike should be able to run without the battery connected it should continue to run without the battery from the power generated by the alternator.

the battery is fine I had to restart the bike so many times riding back home today trying to get home it kept stalling at red lights so it's definitely not the battery.

any advise would be greatly appreciated :)
 

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Stalling probably tells a trouble on your bike.
But the indication mark on dash does not necassarily mean battery trouble.
The indication requests a kind of dealer's annual service. You can find instruction on service indication at page 218 to 222(In case MY2019 English manual). I guess the indication mark imitates not a battery but a clip board.

Only Ducati dealer can reset the indication. You should better take your bike to a dealer for maintenance then reset the service indication.
 

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Discussion Starter · #4 ·
I disconnected the battery and the message goes away but it comes back

one thing I mentioned was that the bike dies instantly if i disconnect the battery this should not be the case once the bike starts you should be able to remove the battery and it should keep running but i am wondering considering the amount of electronic systems the bike has it might be necessary to have both the battery and the motor running to have full power its very odd my old GSXR 1000 was able to keep running after the battery was disconnected and i find it hard to believe the alternator on the Diavel cannot generate enough power to keep the bike running.

if that was the case and the bike needed the battery that means the alternator is not creating enough power and the bike running will kill the battery since there is a clear deficit
 

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Discussion Starter · #5 ·
Thanks for the input i am calling the dealer tomorrow to get it checked out wow Ducati is PITA its beautiful and fun to ride but not as reliable as i hoped the bike has 3k mikes on it
 

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the bike generates more than enough power to keep the bike running but without the battery connected the bike will not run. The alternator alone cannot keep the bike running the bike needs a battery connected at all times. This is to enable the electronics to be fed with a stable supply along with the ecu and fuel injectors etc. The bikes work on a canbus system which needs to have an uninterrupted supply. Also by removing the battery completely you may not have an earth/ground path. This does not make it a PIA but is simply how modern motorcycles with all of their electronics are made.
 

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That "service light" looks like the regular service light, probably the 12 monthly annual service that is due and nothing else.
I drove with that light on for two months and had the service done last Friday.

I think the Service light is unrelated to the stalling issue.

I would say there are two main causes for sudden stalling.

1. Sidestand switch, might want to check that one out.
2. Quick shifter related switches. The QS works by cutting the ignition while shifting, and depends on switches on the clutch leaver, essentially if you do not press the clutch the ignition is cut while shifting, if you pull the clutch, the ignition is not cut.
An incorrectly adjusted clutch or QS switch, may cut the ignition when the clutch is pressed, causing the bike to stall.
This is in line with your experience of stalling happening while the clutch is pressed and starting again when released.

I would expect that the issue is either the clutch handle switch or the QS switch, either faulty or out of adjustment.
I hear a clear "click" from the switch on my clutch, I would start there.
 
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