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1940 restoration mag problem
#687810 03/12/17 4:29 pm
Joined: Aug 2001
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Guys we are restoring a 1940 T100 with a magneto Lucas type RO3. We are trying to see where to hook up a kill switch to mag as no wires come out of mag or cover. Parts books show what we have and manuals are pretty much not even showing a kill button. What am I missing?

Thanks for any info or pics

Mike Carter

[img]http://rs361.pbsrc.com/albums/oo55/...7iaz5wt.jpg?w=280&h=210&fit=crop[/img]

Last edited by Mike Carter; 03/12/17 7:54 pm.
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Re: 1940 restoration mag problem
Mike Carter R.I.P. #687817 03/12/17 5:36 pm
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Is your RO3 a magdyno with a ring cam?

This points cover looks like it could have a brush contacting the centre screw, like what's in a K2F.

[Linked Image]


Amateur Loctite enthusiast.
Re: 1940 restoration mag problem
Mike Carter R.I.P. #687818 03/12/17 6:01 pm
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Nope the mag has a flat cover over points nothing connected that would ground anything to shut it down..There are not a lot of info on the 40 but parts book shows what we have installed but bike manual does not even show a kill switch more numbers on mag are mn2.2

Mike Carter

Re: 1940 restoration mag problem
Mike Carter R.I.P. #687820 03/12/17 6:06 pm
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Re: 1940 restoration mag problem
Mike Carter R.I.P. #687822 03/12/17 6:23 pm
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Your Facebook is private or something. The link doesn't lead to any pictures.

Are you saying it's a face cam magneto?


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Re: 1940 restoration mag problem
Mike Carter R.I.P. #687825 03/12/17 6:39 pm
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https://scontent-mia1-2.xx.fbcdn.ne...5ae5f837add2bb0c2014bc0a&oe=596E8670 Works for me thanks for trying this is a different link it's on facebook

Last edited by Mike Carter; 03/12/17 7:14 pm.
Re: 1940 restoration mag problem
Mike Carter R.I.P. #687829 03/12/17 7:00 pm
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Still no dice, on the picture front.

Best of luck, anyway.


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Re: 1940 restoration mag problem
Mike Carter R.I.P. #687882 03/12/17 11:17 pm
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What Mike is working with :

[Linked Image]




Jon W.


1957 6T Thunderbird 650
1968 T100R Daytona 500
1971 TR6R Tiger 650
1970 BSA A65F 650
1955 Tiger 100 - Project
1971 BSA A65 650 - Project
1972 Norton Commando 750 "Combat"


"Every time I listen to AC/DC, so do my neighbors"

Re: 1940 restoration mag problem
Mike Carter R.I.P. #687934 03/13/17 6:33 am
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What sort of points are under the brass cover?


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Re: 1940 restoration mag problem
Mike Carter R.I.P. #687935 03/13/17 6:41 am
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I see this one also has the black bakelite points cover, with the little hole.

[Linked Image]

You may have a points cover and clip for a single cylinder magdyno.


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Re: 1940 restoration mag problem
Mike Carter R.I.P. #687979 03/13/17 1:46 pm
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Thanks for response and Thanks John for posting pic..But got in touch with Doug wood and there is no kill switch for this bike..Second gear and let out the clutch I guess or just wait for a Lucas part to fail...

Thanks again


Re: 1940 restoration mag problem
Mike Carter R.I.P. #687998 03/13/17 5:33 pm
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TT, where did you find that picture? Haven't seen a prewar Triumph with a dual carb kit before. Looks very professionally done.


Bill B...


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Re: 1940 restoration mag problem
Mike Carter R.I.P. #688000 03/13/17 5:45 pm
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Originally Posted by Mike Carter
Thanks for response and Thanks John for posting pic..But got in touch with Doug wood and there is no kill switch for this bike..Second gear and let out the clutch I guess or just wait for a Lucas part to fail...

Thanks again




If he can't supply a points cover with a brush, do yourself a favour and make one. It is not safe to ride as it is.


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Re: 1940 restoration mag problem
Boomer #688001 03/13/17 5:46 pm
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Originally Posted by Boomer
TT, where did you find that picture? Haven't seen a prewar Triumph with a dual carb kit before. Looks very professionally done.


Bill B...


It just came up on Google.

http://motorcycles-for-sale.biz/sale.php?id=47205

Last edited by triton thrasher; 03/13/17 5:51 pm.

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Re: 1940 restoration mag problem
Mike Carter R.I.P. #688139 03/14/17 8:21 pm
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Have a look at the Lucas parts book for that magneto and you will find that it has a Bakelite cap with a kill wire terminal.

Re: 1940 restoration mag problem
trevinoz #688156 03/14/17 10:30 pm
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Originally Posted by trevinoz
Have a look at the Lucas parts book for that magneto and you will find that it has a Bakelite cap with a kill wire terminal.


Sounds like no more mystery. Wrong points cover and wrong clip and the bike (obviously) should have a kill button.

He'll be along to thank us real soon.


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Re: 1940 restoration mag problem
Mike Carter R.I.P. #688158 03/14/17 10:56 pm
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The operating instructions that I have for a pre-war Triumph twin show a kill button on the left handlebar.

Bruce


1937 Ariel Red Hunter 500
1970 Triumph Bonneville

Making the scene with the gasoline

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