Fitting a Ducati ST2 Reg/Rec?

**mike shannon** · 26 Aug 07, 07:25 PM

hello
can any one help bought a new reg/rec RR51 type two yellow wires on the drawing it shows a white wire which they say is the charge wire now if i place a 12volt bulb in line with the + on the battery as per the drawing it will light and when i run the engine it will go out is the new rr51 reg/rec at fault or is this the way they are made so that if the light comes on when you are riding the bike it is to warn that the reg/rec is not working plus the reg/rec will not fit back on the bike as it is bigger than the old ducati one will have to find a place for it say in side the fork yokes
mike shannon st2

**paso** · 26 Aug 07, 09:47 PM

I fitted one to my paso906 last week i just ran the white wire into the feed to the original charge light on the bike on paso its a blue wire. Worked a treat. Do you have access to an st2 wiring diagram ? But surely your set up is working ok? light goes out when charging comes on when not ?

**mike shannon** · 26 Aug 07, 10:12 PM

hello thank you for your e/mail will have a check monday as i am off bank holl
mike shannon st2

**MarkST** · 27 Aug 07, 12:48 PM

Quote:

Originally Posted by mike shannon

will have to find a place for it say in side the fork yokes
mike shannon st2

Mike, I dont know where the original reg/rec was on your ST2, but on the ST4 they're behind the air intake grill that sits directly underneath the headlamp.
Hope this helps, Mark.

**mike shannon** · 27 Aug 07, 06:10 PM

hello mark
i have just paid a vist to a sheet metal shop and they gave me a 3mm alum 100mmx100mm to fit in under the head lamp or it would req me to cut out a section on the faring ,ref the white wire it will go out when the bike is running but i will have to re wire it as if you follow the drawing you get with the rr51 it is rr51/ bulb /battery which means it is on when you turn off the bike
mike shannon

**MarkST** · 25 Sep 07, 11:31 AM

Mike, any news ?

**Mr.R** · 25 Sep 07, 06:01 PM

Hi,
I use Electrex RR51's on my Ducatis and find them bomb proof........
HOWEVER I DON'T THINK THE'RE THE RIGHT FITMENT FOR THE ST2!

Steve

**MarkST** · 25 Sep 07, 06:13 PM

Quote:

Originally Posted by Mr.R

Hi,
I use Electrex RR51's on my Ducatis and find them bomb proof........
HOWEVER I DON'T THINK THE'RE THE RIGHT FITMENT FOR THE ST2!

Steve

RR50 for 98 onwards ST2's Steve, but they have no stock. I've only found this out today and dont think Mike knows.

**johnnystorm** · 26 Sep 07, 08:35 PM

Out of stock and no idea if they will be returning into stock for the foreseeable future I was told in an email.

**Teddyb** · 04 Apr 08, 11:07 AM

Fit like from bonny Aberdeenshire! New to the forum and new to Ducatis. All this talk of cooling for the reg/rec has got me worried about the location the previous owner chose to mount the replacement (off a 900SS I think he said) on my ST2. It's on the frame, below the saddle and behind the right hand side rear panel. Can I expect to have to fit a replacement soon or is this reg/rec immune to overheating? It's strange, as the guy obviously went to some trouble to mount it in that position, extending the wires and everything, but I can't see that there will be much in the way of airflow. Any advice welcome.
Ted