Well... what started out as a pleasant Sunday cruise (on my '06 mono) up to the Wasp's nest for a full dress rehearsal for our upcoming Phillip Island sojourn (next Monday guy's), all hell broke out !!
About 2k's from the Wasp's my engine check light came on and within seconds bike started to miss badly, lost power and growled like a wild cat
Very next intersection, clutch in, engine stall, bump start with remaining momentum, next intersection, clutch in, engine stall, no momentum, hit starter button "click - click", wont turn over 
Fortunately for me, the Wasp was close at hand and despatched the "pimp my ride" Wasp mobile for an immediate recovery
Cheers Wasp, glad it didn't happen next week, could have been stuck in Adelaide... and who would wish for that (croweaters) 
Anyways... back at the Wasp nest measured the battery voltage at 10.5v, no surprise she wouldn't start, but why during an 80k ride ??
After a couple of hours on charge (only a trickle charger available) battery volts up to 11.5v, hit the button started no prob's but no measurable increase in voltage with engine revving
looks very suspiciously like the dreaded R/R.
After pushing on all day with PI Ducati transporter modifications (trailers), decided to head on home back down the hill, battery was up to about 12.5v... well, got about 30k's down the track and same-same, missing badly, loss of power and growling like a wild cat :abduct:
Very understanding wife turns up with me ute, and a very helpful passing Can Am Spyder rider/driver whateverer secured the recovery.
Back at my workshop checked through charging circuit, 40A regulator fuse OK, battery voltage present at R/R connector (red and black wires), 50vac alternator voltage present at R/R connector with engine at 3 - 4000 rpm (3 x yellow wires), battery held charge overnight and cranked bike feaverishly during tests and still no increase in battery voltage while engine is running, nothing else to suspect other than dead R/R.
Trip down to local Ducati dealer and $208aus secured new R/R, p/n 540.4.011.1C (original 540.4.010.1A superseded). After install, charging voltage at 14.4v with bike at idle... gotta be happy with that
A short test ride (30min) had the static battery voltage increased from 12.5v - 13.5v, indicating bike is now charging during a run. One observation now though is how hot that sucker (R/R) runs, never checked it previously but after test ride touched it with the back of my hand and "yeeow" I now have sexy fin marks on the back of my hand
I am thinking of adopting one of the mod's from this forum where the r/r was turned upside down and poked through a hole made in the plastic pan to give it some free air.
Thanks to all you guys that have posted up previous experiences with this issue, gave me a lot of insight into diagnosing my problem.
Hope the above provides some help to those that may suffer from similar issues.
Cheers... Gaz
Looking forward to catching up with some of you at PI next week.
About 2k's from the Wasp's my engine check light came on and within seconds bike started to miss badly, lost power and growled like a wild cat
Fortunately for me, the Wasp was close at hand and despatched the "pimp my ride" Wasp mobile for an immediate recovery
Anyways... back at the Wasp nest measured the battery voltage at 10.5v, no surprise she wouldn't start, but why during an 80k ride ??
After a couple of hours on charge (only a trickle charger available) battery volts up to 11.5v, hit the button started no prob's but no measurable increase in voltage with engine revving
After pushing on all day with PI Ducati transporter modifications (trailers), decided to head on home back down the hill, battery was up to about 12.5v... well, got about 30k's down the track and same-same, missing badly, loss of power and growling like a wild cat :abduct:
Very understanding wife turns up with me ute, and a very helpful passing Can Am Spyder rider/driver whateverer secured the recovery.
Back at my workshop checked through charging circuit, 40A regulator fuse OK, battery voltage present at R/R connector (red and black wires), 50vac alternator voltage present at R/R connector with engine at 3 - 4000 rpm (3 x yellow wires), battery held charge overnight and cranked bike feaverishly during tests and still no increase in battery voltage while engine is running, nothing else to suspect other than dead R/R.
Trip down to local Ducati dealer and $208aus secured new R/R, p/n 540.4.011.1C (original 540.4.010.1A superseded). After install, charging voltage at 14.4v with bike at idle... gotta be happy with that
A short test ride (30min) had the static battery voltage increased from 12.5v - 13.5v, indicating bike is now charging during a run. One observation now though is how hot that sucker (R/R) runs, never checked it previously but after test ride touched it with the back of my hand and "yeeow" I now have sexy fin marks on the back of my hand
I am thinking of adopting one of the mod's from this forum where the r/r was turned upside down and poked through a hole made in the plastic pan to give it some free air.
Thanks to all you guys that have posted up previous experiences with this issue, gave me a lot of insight into diagnosing my problem.
Hope the above provides some help to those that may suffer from similar issues.
Cheers... Gaz
Looking forward to catching up with some of you at PI next week.