1960 Matchless G9 - Ammeter

shufty · Post by **shufty** » Mon Jul 02, 2007 8:11 pm

I am about to order a replacement ammeter for my 1960 G9.

There are two listed +/- 12amp or +/- 8amp.

Which one was originally fitted? The price is the same so I might as well get the right one.

Biscuit · Post by **Biscuit** » Tue Jul 03, 2007 12:11 am

Don't really know the answer to this one, but the theoretical current delivered by the 60 watt dynamo is 10A, so on that basis it ought to be 12-0-12. Now you will obviously say you have an alternator, but the spares list gives the same ammeter across the range of singles and twins, cooking models or competition.

bag-o-nails · Post by **bag-o-nails** » Tue Jul 03, 2007 9:59 am

Hi nigel
unrelated to the above and further to our telphone call i have a manual by one F.NEILL
AJS&MATCHLESS SINGLE MOTORCYCLES
1958 1966 Printed by
Lodgemark Press Tel: 0208 467 6533
Fax: 0208 468 7999
There is a good wireing digram includeing cable colours for the lightweights,

Also How do i check Engine no for year of manufacture the v5 says mine is a 66 but the buff log book says first reg 68!
cheers
bag-o-nails

bag-o-nails · Post by **bag-o-nails** » Tue Jul 03, 2007 10:19 am

Sorry Alan !
who the hell is nigel

shufty · Post by **shufty** » Tue Jul 03, 2007 5:19 pm

Bag-o-nails
Can you raise your log book query on a separate query? Only this could get confusing!

Alan - Thanks for your thoughts, that makes sense. I'll order a 12-0-12, unless someone convinces me otherwise. I presume the 08-0-08 ammeters were for earlier pre 1960 models?

bag-o-nails · Post by **bag-o-nails** » Tue Jul 03, 2007 6:22 pm

heh! Shufty
my qurey is bigger than your qurey

Biscuit · Post by **Biscuit** » Tue Jul 03, 2007 6:42 pm

What the hell is a qurey?

Shufty, I have established that the Lucas part No. was CZU27, equating to the AMC no. 36084, but no where do the blighters say whether it is 12-0-12 or 8-0-8Edited by - Biscuit on 03 Jul 2007 6:02:05 PM

deshollier · Post by **deshollier** » Tue Jul 03, 2007 9:20 pm

The view of that ammeter in the Lucas Spares list of 1956 indicates that it had just two divisions either side and a - sign on the left and a + one on the right. (I have seen this model on some bikes). I have an 8-0-8 on my 57 G9, I have a good battery and a recon dynamo and rarely get a full scale deflection. On an extended run with all lights on, it settles down to a very slight charge - difficult to judge precisely, as when switched off the needle is not quite central, but at about a couple of needle widths to the charge side!
If I had a 12-0-12 meter presumably I would get very little reading apart from after start up for a short while. I am not saying that is good or bad, but a thought to bear in mind. But if you intend fitting modern Halogen bulbs then I believe it would make sense to fit the 12-0-12 meter irrespective of what is specifed for the 1960 model.

shufty · Post by **shufty** » Wed Jul 04, 2007 5:24 pm

Well I've ordered a 12-0-12 on the strength of this.

Thanks for the help.

When its finally roadworthy - I just don't want to hear from some know-it-all saying "nice bike - shame you've got the wrong ammeter....."

lawrence · Post by **lawrence** » Wed Jul 04, 2007 8:46 pm

quote:
Well I've ordered a 12-0-12 on the strength of this.

Thanks for the help.

When its finally roadworthy - I just don't want to hear from some know-it-all saying "nice bike - shame you've got the wrong ammeter....."

"A lot of people think that. What only the real experts know is that AMC fitted the 12amp one to the first 100 home models made in........"

Works every time