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A7 1946-1950
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A7 rectifier wiring
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Topic: A7 rectifier wiring (Read 798 times)
tailguncharlie
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A7 rectifier wiring
«
on:
27.01. 2015 18:03 »
Hi, just new to the forum. Can anyone give details on how to wire in a rectifier on my A7 please?
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colr6
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Join Date: Feb 2012
Posts: 6
Karma: 0
62a7ss,53b31. 61c15, 48star twin. 53b33, 52c11, 74
Re: A7 rectifier wiring
«
Reply #1 on:
27.01. 2015 19:22 »
Hi, you don't say what year your bike is? If I remember correctly its a regulator box not a rectifier.
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bikerbob
Resident Legend
Join Date: Feb 2011
Posts: 680
Karma: 8
Re: A7 rectifier wiring
«
Reply #2 on:
27.01. 2015 19:45 »
The A7 does not have a rectifier but has a regulator with 4 terminals with letters F. A. D. E. The F terminal wire which should be green goes to the F terminal on the dynamo. The A terminal wire which should be purple goes to the negative side of the ammeter. The D terminal wire which should be yellow goes to the D terminal on the dynamo. The E terminal goes to a suitable earth point on the frame.
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56 A7 s/a
63 A65
muskrat
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Join Date: Jul 2009
Posts: 11048
Karma: 132
Lithgow NSW Oz
Re: A7 rectifier wiring
«
Reply #3 on:
27.01. 2015 19:46 »
G'day tailguncharlie
.
clor6 is correct unless you have an alternator model. The reg is wired FADE = field, ammeter, dynamo, earth. The dynamo will have the poles marked F & D.
Link to service sheets
http://www.bsawiki.co.uk/index.php?title=Chapter_list
Cheers
Doh, Bob just beat me.
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'51 A7 plunger, '57 A7SS racer now a A10CR, '78 XT500, '83 CB1100F, 88 HD FXST, 2000 CBR929RR ex Honda Australia Superbike .
Australia
Muskys Plunger A7
Johnny J
A's Good Friend
Join Date: Nov 2014
Posts: 126
Karma: 1
A10 Golden Flash 1960
Re: A7 rectifier wiring
«
Reply #4 on:
27.01. 2015 20:29 »
I cannot see any pictures on bsawiki, is it only me?
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Gothenburg, Sweden
Butch (cb)
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Join Date: Aug 2010
Posts: 1690
Karma: 16
Re: A7 rectifier wiring
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Reply #5 on:
27.01. 2015 21:14 »
Like a small x in a black square you mean? - me too.
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Warning - observations made by this member have a 93% unreliability rating.
Of Bikes; various, including ...
'58 S/Arm Iron Head Flash Bitza
colr6
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Join Date: Feb 2012
Posts: 6
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62a7ss,53b31. 61c15, 48star twin. 53b33, 52c11, 74
Re: A7 rectifier wiring
«
Reply #6 on:
27.01. 2015 21:35 »
Hi, as Bikerbob has given the colours and there position, if you are still unsure just pull up bsa service sheet 808a up on the net and it will show you in diagram form
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muskrat
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Join Date: Jul 2009
Posts: 11048
Karma: 132
Lithgow NSW Oz
Re: A7 rectifier wiring
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Reply #7 on:
28.01. 2015 00:07 »
Yep, pics are gone. this is the download page (i hope).
http://www.google.com.au/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0CB8QFjAA&url=http%3A%2F%2Fwww.bsa-oc.com%2Fwp-content%2Fuploads%2Fbsk-pdf-manager%2F79_SECTIONY_BSASERVICESHEETNO808.PDF&ei=YSfIVMujJIa1mwXdpIHQCA&usg=AFQjCNGqAy18-VN9sVDBGHwpq-Kk9gyHwA&bvm=bv.84607526,d.dGY
Cheers
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'51 A7 plunger, '57 A7SS racer now a A10CR, '78 XT500, '83 CB1100F, 88 HD FXST, 2000 CBR929RR ex Honda Australia Superbike .
Australia
Muskys Plunger A7
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The BSA A7-A10 Forum
»
Technical (Descriptive Topic Titles - Stay on Topic)
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Lucas, Ignition, Charging, Electrical
»
A7 rectifier wiring