Author Topic: A7 rectifier wiring  (Read 453 times)

Offline 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?

Offline colr6

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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.

Offline bikerbob

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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.

Online muskrat

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Re: A7 rectifier wiring
« Reply #3 on: 27.01. 2015 19:46 »
G'day tailguncharlie *welcome*.
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.
'51 A7 plunger, '57 A7SS now A10CR,  '83 CB1100F, .
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Muskys Plunger A7

Offline Johnny J

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Re: A7 rectifier wiring
« Reply #4 on: 27.01. 2015 20:29 »
I cannot see any pictures on bsawiki, is it only me?
   Gothenburg, Sweden

Online cyclobutch

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Re: A7 rectifier wiring
« Reply #5 on: 27.01. 2015 21:14 »
Like a small x in a black square you mean? - me too.
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Offline colr6

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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

Online muskrat

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Muskys Plunger A7