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Positive or Negative electrics?
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Topic: Positive or Negative electrics? (Read 1434 times)
RoadRunner
A's Good Friend
Join Date: May 2010
Posts: 210
Karma: 2
Thinking Time
Positive or Negative electrics?
«
on:
17.10. 2010 21:59 »
Hi, for my Bitsa; basically a '57 Plunger Flash with A7 small finned iron top end which electrical system should I wire up - positive or negative? I don't have any wiring at present so before starting thought I'd try to get it right first time! I'm keeping it at 6v for the time being with a view to converting to DVR2 regulator (best option according to previous posts?) when finances improve! My dynamo and mag (man. adv/retard) have been reconned as standard. Intend using the original volt reg but have a brand new copy one incase.
Any advantage/disadvantage with either -ve or +ve system? Apologies if it's obvious
Cheers
RR
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United Kingdom
BSA_54A10
Wise & Enlightened
Join Date: May 2008
Posts: 2544
Karma: 37
Re: Positive or Negative electrics?
«
Reply #1 on:
18.10. 2010 00:33 »
Not a cracker of differnce. nothing will work better & nothing will perform worse.
The change to + earth was done due to a big missunderstanding about electronic cathodic protection.
It works on ships because they are in salt water.
It dosn't wok on motor cycles because you can not get a complete circuit.
If you decide to change over, reverse the wires on the amp meter.
Also mark the battery box with a note "Negative Earth".
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Bike Beesa
Trevor
iansoady
Valued Contributor
Join Date: Jul 2010
Posts: 471
Karma: 9
Re: Positive or Negative electrics?
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Reply #2 on:
18.10. 2010 12:43 »
The only issue is when you have several vehicles with different layouts and you have to constantly remind yourself which is which.
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Ian.
1962 Golden Flash (arrived)
1955 Velo Viper/Venom (departed)
2004 Triumph Tiger 955i (staying)
Goldy
Warwickshire, England
Resident Legend
Join Date: Dec 2008
Posts: 619
Karma: 9
Re: Positive or Negative electrics?
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Reply #3 on:
18.10. 2010 16:59 »
I was in the same position with a choice of neg or pos and someone told me that if I chose postive earth I would not get any battery terminal corrosion, so positive it was and guess what, I get positive terminal corrosion.
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56 A10 Golden Flash - Restore, ride, relive.
56 C12 BSA project ongoing
BSA_54A10
Wise & Enlightened
Join Date: May 2008
Posts: 2544
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Re: Positive or Negative electrics?
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Reply #4 on:
19.10. 2010 01:02 »
Did some one mention incorrect application of electro galvanic corrosion protection ?
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Bike Beesa
Trevor
A10Boy
Wise & Enlightened
Join Date: Jun 2008
Posts: 1078
Karma: 11
Solihull, Near Birmingham England.
Re: Positive or Negative electrics?
«
Reply #5 on:
21.10. 2010 13:57 »
No, I dont think so................
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Regards
Andy
1958 Super Rocket
Plus
Harley Super Glide Custom
Yam XJR 1300
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Positive or Negative electrics?