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#699538 - 06/25/17 2:07 am Hello Matchless guys...  
Joined: Aug 2006
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No Name Man Online content
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No Name Man  Online Content

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SE Ohio
I am going to have questions. Specifically about a 59 G80. Original harness gone. Has been rewired (with all one color wire). I would like to find a wiring diagram and any other info available. The wiring is fairly simple of course but are harnesses available? Headlight shell switch is working but there's things wrong in there. I would have expected to find a rubber grommet in the lower back of the shell but instead there is weird round connector that sort of fits the hole, held in with three small bolts. Doesn't look stock to me. But then I've never had me hands on one of these before.
Also the original appearing battery box is there...with a very dead battery in it. It isn't coming loose. are these available?
Responses and advice welcome. Thanks in advance,

Bill E


69 A65T
71 B50T
85 K100RS
54/59 A10SR
69 B44VS
71 A65FS
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#699543 - 06/25/17 4:00 am Re: Hello Matchless guys... [Re: No Name Man]  
Joined: Mar 2013
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robcurrie Online content
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Irene, South Africa
The plug in the headlight is for quick removal for comp models.

Rob C

#699547 - 06/25/17 7:27 am Re: Hello Matchless guys... [Re: No Name Man]  
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Rohan Offline
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Oztralia
A suitable wiring diagram is this - found off the Jampot Forum.
http://www.factbucket.com/IMG_1341.jpg


Wiring harnesses are available - start by poking around on the Jampot Forum.
They have their own spares scheme, and anyone can buy.

Look after that battery box !, and persist with it.
Worth its weight in donkey droppings, they usually get eaten by acid.

#699617 - 06/26/17 2:06 am Re: Hello Matchless guys... [Re: No Name Man]  
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robcurrie Online content
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Irene, South Africa
For help with the harness, contact this AJS & Matchless Owners Club member : Colin Farrington
http://www.catmando-services.co.uk

Rob C

#699660 - 06/26/17 2:32 pm Re: Hello Matchless guys... [Re: No Name Man]  
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Any ideas on how to separate the leaked battery from the box? Without breaking it? I also found a Walridge ad in the AJS&MO magazine saying they have harnesses. This G80 was Ben Strain's who recently passed. I am hoping the family will allow me to get it running.

Thanks Rob C... the connectors on the plug are odd to me. Having a proper harness on hand might make it obvious how it originally connected. I also suspect a missing part. Grommet or mounting hardware maybe.

Are these engines prone to wet-sump? There is a small amount of oil in the tank and it leaves a few drops on the floor as a proper English bike should. It wasn't appropriate for me to drain the sump yet.

I'm assuming a wiring diagram will explain the headlight switch. As I found it, the taillight would come on when turned to the 1st position and then go off when turned to 2nd (headlight) position! Moved the wire one screw over and now the taillight lights in both positions. Is that how it was supposed to work?

Thanks for the responses...

Bill E


69 A65T
71 B50T
85 K100RS
54/59 A10SR
69 B44VS
71 A65FS
Too much moderation is bad for you.

#699664 - 06/26/17 2:48 pm Re: Hello Matchless guys... [Re: No Name Man]  
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Rohan...thanks for the link. This G80 has a front mounted magneto. Was the alternator optional? Looking forward to finding out if it and the dyno are alive.


69 A65T
71 B50T
85 K100RS
54/59 A10SR
69 B44VS
71 A65FS
Too much moderation is bad for you.

#699725 - 06/26/17 10:25 pm Re: Hello Matchless guys... [Re: No Name Man]  
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Rohan Offline
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Rohan  Offline
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Oztralia
Dyno ? front mounted magneto ? headlamp plug ? optional alternator ?
Either this bike isn't 1959, or isn't just a G80, or isn't very std. !!

Could it be a CS model, or altered to a CS model, or a complete bitza.
So, you may not find a wiring diagram that actually matches it. ?

The alternator was inside the alloy primary case, on the std G80 model circa then....

#699773 - 06/27/17 8:58 am Re: Hello Matchless guys... [Re: No Name Man]  
Joined: Apr 2006
Posts: 1,396
johnm Offline
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This bike should be about the easy bike in the world to identify and date. The engine numbers have both the model and year stamped on it. 59 = 1959

For the normal road bikes the magneto and dyno were replaced by the alternator and coil ignition in 1958. But dates can get a bit mixed because of model years vs calendar years.

As Rohan said if you have a 59 bike and a mag then something isn't standard G80

#699917 - 06/28/17 2:42 pm Re: Hello Matchless guys... [Re: No Name Man]  
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I think it is CS. Mag standard on them? Not possible to look at the vin now. It certainly looks like images I've seen of G80CS models. Except for the western bars. Anyway thanks for the info and I hope I get a chance to get more advice from you about it eventually. Depends on the owner's family.

Bill E


69 A65T
71 B50T
85 K100RS
54/59 A10SR
69 B44VS
71 A65FS
Too much moderation is bad for you.

#711122 - 10/10/17 7:19 pm Re: Hello Matchless guys... [Re: No Name Man]  
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Well, now I have the G80CS in my barn...to get it running for the Strain family. Has anyone successfully removed a badly corroded battery from it's battery box? And if so, how did you go about it? My first thought is to soak it with baking soda. Any other ideas?

Bill E


69 A65T
71 B50T
85 K100RS
54/59 A10SR
69 B44VS
71 A65FS
Too much moderation is bad for you.

#711218 - 10/11/17 5:18 pm Re: Hello Matchless guys... [Re: No Name Man]  
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Other questions...
Would a CS have had folding pegs? This one doesn't.
It has a 930 Concentric. Obviously not original. Seems small to me.


69 A65T
71 B50T
85 K100RS
54/59 A10SR
69 B44VS
71 A65FS
Too much moderation is bad for you.

#711219 - 10/11/17 6:20 pm Re: Hello Matchless guys... [Re: No Name Man]  
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Lannis Online content
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For the carb, I would probably just check the match between the carb throat and the intake port to make sure there's no "step" in either direction (I'm sure you don't need the "swirl" effect from a mismatch on this low-revving old plonker!). If a 930 is close, it's probably going to do fine ....

For the battery, the corrosion material is usually lead sulphate (along with some rust). I'd use a strong solution of baking soda to clean up as much as you can and neutralize the acidic component, then a gentle acid solution like Coca Cola or vinegar to loosen up the rest ...

Lannis


OK, I admit it, I'm addicted to brake fluid.

But I can stop any time I want.
#711248 - 10/11/17 9:43 pm Re: Hello Matchless guys... [Re: No Name Man]  
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Not sure i would describe a G80CS as a low-revving plonker, but Bacon's book (if I read it correctly) says it would have had a 389 with 1 3/16. 30 mm equals 1.18 inches so close?
The battery is a very tight fit in the box...even before the massive corrosion. Hoping the baking soda might eventually seep down and bust it loose but I dunno...


69 A65T
71 B50T
85 K100RS
54/59 A10SR
69 B44VS
71 A65FS
Too much moderation is bad for you.

#711256 - 10/11/17 11:33 pm Re: Hello Matchless guys... [Re: No Name Man]  
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kevin roberts Online content
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ohio, usa
try fizzing the battery corrosion out with a runny paste made from water and baking soda. paint it on with a paint brush, or just immerse the battery box in a pan of saturated solution. it will likely not be pretty when you're done, but nothing will be.


Into the distance a ribbon of black
Stretched to the point of no turning back
A flight of fancy on a windswept field
Standing alone my senses reeled
A fatal attraction is holding me fast how
How can I escape this irresistible grasp?
#711272 - 10/12/17 1:35 am Re: Hello Matchless guys... [Re: No Name Man]  
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Lannis Online content
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Originally Posted by No Name Man
Not sure i would describe a G80CS as a low-revving plonker ...


Maybe not. Guess it depends what you're comparing it to .... !

Lannis


OK, I admit it, I'm addicted to brake fluid.

But I can stop any time I want.
#711319 - 10/12/17 3:53 pm Re: Hello Matchless guys... [Re: No Name Man]  
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Just to clarify...the completely deteriorated battery is still in the box. Bonded to the insides like it was superglued there. But I am going to try to rescue the box.


69 A65T
71 B50T
85 K100RS
54/59 A10SR
69 B44VS
71 A65FS
Too much moderation is bad for you.


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