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Author Topic: Where Are All Ground Connections ?  (Read 174 times)

singhg5

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Where Are All Ground Connections ?
« on: October 23, 2014, 04:12:25 PM »
I want to check ALL ground connections on my G5. On the circuit diagram, there are at least 9 - 10 grounds. Only one of them - starter motor ground - is clearly visible. Where on the frame are others physically located such as Power Relay Ground, ECU pin 36 Power Ground, etc. etc. - Any other missing ?

1. Starter Motor ground
2. Battery Terminal Negative
3. Power Relay Ground - PG
4. ECU Pin 36 power ground - PG
5. Clutch Switch ground
6. Neutral Switch ground
7. ECU sensors ground - SG
8. Tail lamp ground
9-10. Pilot lamps ground

« Last Edit: October 23, 2014, 04:41:27 PM by singhg5 »
1970's Jawa /  Yezdi
2006 Honda Nighthawk
2009 Royal Enfield Black G5

gremlin

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Re: Where Are All Ground Connections ?
« Reply #1 on: October 23, 2014, 04:18:54 PM »
Do you mean the frame connection?  I would wager you might find it under the tank.

As for the other power returns, I sure hope they don't use the frame as part of the electrical circuit.  Promotes rust, that.  plays havoc with bearings too.
« Last Edit: October 23, 2014, 04:23:14 PM by gremlin »
1996 Trophy 1200
2011 RE B5
1979 XS11 w/vetter terraplane
1981 XS11 streetfighter
1983 Venture Royale
1982 CB750K
1971 Triumph Trident
1969 CB450
1966 Sears (puch) 250


gashousegorilla

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Re: Where Are All Ground Connections ?
« Reply #2 on: October 23, 2014, 04:41:55 PM »
   Post up a diagram if you would Singh....  Easier that way, instead of searching with a touchy,tappy phone or not at home to have access to one . ;D ;)
An thaibhsí atá rattling ag an doras agus tá sé an diabhal sa chathaoir.

singhg5

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Re: Where Are All Ground Connections ?
« Reply #3 on: October 23, 2014, 04:47:57 PM »
GHG: This is the colored diagram by Scaly, another Forum member from UK. Very helpful. 

Do you mean the frame connection?  I would wager you might find it under the tank.

As for the other power returns, I sure hope they don't use the frame as part of the electrical circuit.  Promotes rust, that.  plays havoc with bearings too.

Yes, I want to see these frame connections.

Don't remember seeing them under the tank when I had taken it off.
1970's Jawa /  Yezdi
2006 Honda Nighthawk
2009 Royal Enfield Black G5

ace.cafe

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Re: Where Are All Ground Connections ?
« Reply #4 on: October 23, 2014, 05:05:03 PM »
On the old bikes, there was a bolt through a frame lug, right behind the battery. There were some ground wires with some ring terminals on that. Probably still has that.
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gashousegorilla

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Re: Where Are All Ground Connections ?
« Reply #5 on: October 23, 2014, 05:13:15 PM »
GHG: This is the colored diagram by Scaly, another Forum member from UK. Very helpful. 

   Yes it is, and thanks.  As far as your numbers 1 and 2, and using my 09 C-5 as a reference.  The ground strap or negative wire from the battery goes to the body of the starter motor. The stater motor is bolted to the Engine, intern the engine is bolted to the frame.... frame is negative.
An thaibhsí atá rattling ag an doras agus tá sé an diabhal sa chathaoir.

gashousegorilla

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Re: Where Are All Ground Connections ?
« Reply #6 on: October 23, 2014, 05:28:54 PM »
 Your 9-10, pilot lamp grounds are through the body of the lights them selves.  It's a single wire light... the wire is hot. And the body of the light screws into the nacelle, witch is connected to the frame.
An thaibhsí atá rattling ag an doras agus tá sé an diabhal sa chathaoir.

Desi Bike

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Re: Where Are All Ground Connections ?
« Reply #7 on: October 23, 2014, 07:44:09 PM »
It's girl guides night for my daughter tonight. I have my frame mostly stripped, but wont have time to look tonight as its a mad panic to get an early teen fed and ready for anything in time.  :P
Tomorrow night I'm free so I'll do what I can then to trace the grounds on my MY11 C5
میں نہیں چاہتا کہ ایک اچار
میں صرف اپنی موٹر سائیکل پر سوار کرنا چاہتے ہیں

gremlin

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Re: Where Are All Ground Connections ?
« Reply #8 on: October 23, 2014, 08:32:05 PM »
Your 9-10, pilot lamp grounds are through the body of the lights them selves.  It's a single wire light... the wire is hot. And the body of the light screws into the nacelle, witch is connected to the frame.

through the stem bearings .....
1996 Trophy 1200
2011 RE B5
1979 XS11 w/vetter terraplane
1981 XS11 streetfighter
1983 Venture Royale
1982 CB750K
1971 Triumph Trident
1969 CB450
1966 Sears (puch) 250


Arizoni

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Re: Where Are All Ground Connections ?
« Reply #9 on: October 24, 2014, 02:40:59 AM »
I suspect that smaller ground wire at the batterys negitive terminal that's always causing a problem by failing, supplies the harness with the ground connection.
That would explain why the motorcycle tends to have major problems running when that particular wire fails.

With the harness supplied with its own ground thru this smaller wire, splicing other ground connections into it would supply the ground for other electrical items without needing to go thru the headstock bearings.
Jim
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perri

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Re: Where Are All Ground Connections ?
« Reply #10 on: October 25, 2014, 12:24:04 PM »
many owners in Italy,
they added ground wire negative battery, works best
c5 2009 italy

gremlin

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Re: Where Are All Ground Connections ?
« Reply #11 on: Today at 04:51:51 AM »
.......With the harness supplied with its own ground thru this smaller wire, splicing other ground connections into it would supply the ground for other electrical items without needing to go thru the headstock bearings.

1/ohm = mho (siemens) [quantifying conduction]

Kirchoff would suggest that ANY 2 frame connections will flow power.  of course the larger the copper return wire (in the harness) the lower the frame current will be.
« Last Edit: Today at 04:55:47 AM by gremlin »
1996 Trophy 1200
2011 RE B5
1979 XS11 w/vetter terraplane
1981 XS11 streetfighter
1983 Venture Royale
1982 CB750K
1971 Triumph Trident
1969 CB450
1966 Sears (puch) 250