As with all the multis (except the 2015 model apparently). mine runs rough when below about 3000 revs. To maintain a constant speed in traffic I have to ride in a lower gear and increase the revs. I have heard that getting it re mapped will cure it at a cost of about £400 but that seems a bit over the top when I am not looking for more power, I just want to level out the low down speed. I have also been told that if I have the O2 sensors disabled it will help. If I don't ride the clutch at low speed it almost stalls and if that happens at a junction I am definitely going to drop it . Does anyone have any advice. Cheers.
I've no experience with multis but some of the symptoms you describe can possibly be improved by replacing your OEM rear sprocket with one with 2-3 more teeth. This won't fix any problem with fuelling that you might have but at least the bike runs at a happier rev range for a given speed. This mod has transformed both my 999S and my 750Sie.
Rightly or wrongly it is the characteristic of the engine as in previous injected generations. The choice is yours to do any of the list of mods and Loz's suggestion is one of the better ones, or do nothing but don't ride in the low rev band. I have had a 2012 s tourer since new and the only time my revs fall below 3000 is when i'm stationary even after decatting and remapping. Andy
It sounds like the bigger cog could be the best option, I didn't like the sound of a £400 fix that may not work. Thanks for your help.
You'll likely need a slightly longer chain with the larger rear sprocket. Some folks recommend changing to a 14T front sprocket, in place of the standard 15T. There's no direct evidence that this is a better or a worse solution (it's probably a cheaper one) but it's not something I recommend. I have a hunch that it stresses the chain unduly.
to change your final drive will only smooth and shift the problem. As you are now, you will notice - the taller the gear the less feed back you have in this area. we all swap and change parts out. After market pipe builders, however good their name, pay little attention to sampling position. this can give a shrouding effect if not buried deep enough, starved sampling if positioned wrong and poor sampling if not enough back pressure ! What i believe you have here is poor sampling at low engine speed. Very common in V-Twins. To flash a generic tune will not fix this either. Dyno or a live road sampling and tuning kit may well. If they know what they are doing! You say lumpy? are you on wide band sensors or narrow band? the tune is either leaning out or becoming too fat in this problem area. I read P-Commander does not work with these bikes in a previous post! P-Vision is far more controllable, especially with the Auto tune unit. Lots of people are running with problems in this area, cant feel it and dont know. Just because its said we should be able to run closed loop in all areas, in reality we have to give the engine what it wants, this may well mean dropping the Calibration out of closed loop below 3500 RPM in the lower Kpa cells. If you can get this tune within the parish, it may well hold, but if you have poor sampling. open loop could be the fix, but you need the Ve tables to be correct. After all this crap........... i'm not familiar with Ducati's. I have just joined here as i look for my first and hope to be. Maybe some one will chime in and fill in the gaps for the specifics to your build? Don't just change the gearing !!!! Chris.
