Checking electric system

discussions specific to the 907IE
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Finnpaso
paso grand pooh-bah
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Re: Checking electric system

Post by Finnpaso »

Yes! When You look closer, that plate, where 907 RR is fitted, is insulated from frame with 3 rubber holders and that RR cover(fins) are not connected DIRECT to earth ! Surely RR is conncted to earth with that minus(-) wire, but what happens, if that fails, or some bad connection in that wire???? I can quess.... :,( I have read long time ago, that someone missed his RR , when that - wire went broken and immediatelly i made that extra wire from fins to good earth. Anyway that is "safety thing"... :thumbup: :smoke:
Antti http://www.youtube.com/watch?v=HeKOh3XoXPg&NR=1
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Janky59
Posts: 33
Joined: Sun Aug 28, 2022 6:56 pm
model: 907 I.E.
year: 1992
Location: Salisbury, MD USA

Re: Checking electric system

Post by Janky59 »

For my winter project I’m going over my 907ie to learn it’s history, freshen up what I come across, clean all over, and learn how it’s put together.
One “Easter Egg” I came across was this nest of hotness. I peeled away all the crummy insulation, pulled connectors apart, scuffed and cleaned and heat shrink-ed things back together.
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Then I learned someone had cut the red wire from the leads coming from the stator/engine.
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From my reading of past topics this tells me the reg-rec has been replaced. I looked it over but can’t really tell the brand.
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In the 500 or so miles I put on it since I took delivery the charging system seems to be working ok, but I hope to head off future troubles by this maintenance and cleaning all the grounds.
Current moto stable:
‘21 Beta 390RS
‘18 BMW R1200RT
‘11 Ducati Hypermotard 1100 EVO
‘92 Ducati 907ie
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paso750
paso grand pooh-bah
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Joined: Sun Jul 18, 2004 12:00 am
model: 750 Paso
year: 1987
Location: southern Germany

Re: Checking electric system

Post by paso750 »

You can post a picture of the reg/rect. Maybe someone can identify it.
I'm wondering about the cable with the cut red wire. Is that an original one? All the wiring is in hoses while that is a 3-wire cable. :huh:
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Janky59
Posts: 33
Joined: Sun Aug 28, 2022 6:56 pm
model: 907 I.E.
year: 1992
Location: Salisbury, MD USA

Re: Checking electric system

Post by Janky59 »

I took a couple of pictures, getting the best view I could without removing the reg-rec. It looks to me the original Ducati mounting holes line up with the reg-rec bolts.
Paso750, I don’t know if the 3 wire cable is the original or not. I think I am the 3rd or 4th owner so I don’t know the bikes long term history. There are no numbers or wording along the outer sheath for what that is worth.
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Current moto stable:
‘21 Beta 390RS
‘18 BMW R1200RT
‘11 Ducati Hypermotard 1100 EVO
‘92 Ducati 907ie
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paso750
paso grand pooh-bah
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Joined: Sun Jul 18, 2004 12:00 am
model: 750 Paso
year: 1987
Location: southern Germany

Re: Checking electric system

Post by paso750 »

Hard to say what model reg/rect it is. I searched through pictures but didn't see one with that order of wires (two green in the middle and the yellow on the outside)
Tamburinifan
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model: 907 I.E.
year: 1991
Location: Gothenburg, SWEDEN

Re: Checking electric system

Post by Tamburinifan »

Looks like a modern Ducati one, not original.
Loosen it and see what it says, like Shindengen, letters, numbers.
Gert

907 I.E. -91
M900 -97
MTS 1100s -07
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paso750
paso grand pooh-bah
Posts: 5552
Joined: Sun Jul 18, 2004 12:00 am
model: 750 Paso
year: 1987
Location: southern Germany

Re: Checking electric system

Post by paso750 »

Good idea regarding Shindengen, Gert.
It looks like this one: https://www.stein-dinse.biz/product_inf ... rettyPhoto
Mc tool
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Joined: Wed Dec 05, 2007 12:35 am
model: 906 Paso
year: 1990
Location: Newzealand

Re: Checking electric system

Post by Mc tool »

Tamburinifan wrote: Sun Mar 16, 2008 6:38 pm Any more vital wiring/connections to check?
Aw come on Gert :D , you know these bikes . It your looking for things to fix just ride it round for 5 mins :lol: .
I think the extra earth wire is a good idea ....so much so that I am going to do it to my quad as Im having alt issues with it .
I wish I was young again............Id be heaps smarter than last time
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Janky59
Posts: 33
Joined: Sun Aug 28, 2022 6:56 pm
model: 907 I.E.
year: 1992
Location: Salisbury, MD USA

Re: Checking electric system

Post by Janky59 »

Hi Gents, I took a few minutes to check out the reg/rec. on my bike.
Here a picture of what is stamped along the bottom:
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SH673-12 is the marked there.
A couple of the results from my web search were eBay listings of this reg/rec from France for the DS engined Ducatis, the early 2000’s models.

For general knowledge I’ve included a picture of the Lancia Fiat relay that is there. I don’t know if this was the OEM part or a replacement installed sometime in its history, but maybe this will be useful info for someone.
C16FF7AB-D4DA-4569-870F-DF6042A78F81.jpeg
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I appreciate any comments or info, regards.
Current moto stable:
‘21 Beta 390RS
‘18 BMW R1200RT
‘11 Ducati Hypermotard 1100 EVO
‘92 Ducati 907ie
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