Recent Posts

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91
European and Other Bikes / Re: Bench starting Zundapp Bella engine
« Last post by iansoady on January 11, 2018, 02:59:06 PM »
As far as I can see from the diagram, if you connect battery live to 15 and earth to the engine casing, you should have the basic ignition circuit. You can then at least get a spark. I'd disconnect everything else.

I wouldn't bother with anything else at this stage although the mere fact of the engine running will not tell you everything of course.
92
European and Other Bikes / Bench starting Zundapp Bella engine
« Last post by Jonny The Goat on January 11, 2018, 02:17:57 PM »
Hello. Hopefully this is a easy question for people with electrical circuit ignition experience. I would like to start this engine without any of the bikes wiring in place. It looks and hopefully is simple. Really all connections are in generator case. First Bella's need a battery to start unlike most 2 stroke engines. There are only 3 connections in generator. As far as I can work out 1 is for lighting and battery charging and one or is it 2 for starting. The engine earths through frame of bike so as its 6v do I just need to connect live battery wire to the blue wire connection No 15 or Do I need to connect it to the red wire connection No 30/51 as well ? I would think it would then run battery neg connected on engine ? Though battery would run down after some time ? Can you also see from my drawings how battery charges, is it just through the green wire via the cut out reg that is fitted also in the generator ? It all seems really neat without having to have all sorts of electrical fittings all over the bike just the switch and lights. Hope someone can help so a I can run up the engine to see it runs before continuing with the restoration. Cheers, Jon.
93
British Bikes / Re: 1951 Royal Enfield Model S S672
« Last post by cruise98 on January 11, 2018, 12:26:32 PM »
1951 52 53 export model
To change to a lucas there was a list of stuffed ypu had to change including crankcase
94
Identify these bikes! / Re: Old monstrosity form a scrap yard needs ID
« Last post by BikerWannabe on January 11, 2018, 10:59:46 AM »
I don't know if I can gain access to the differential. The scrap yard is away from me.
The only old school bike I know of that has cast wheels is the Böhmerland. This thing looks a bit like a Böhmerland prototype or something...
But it could totally be a type of German war machine as well. Some weird trike thing that carries guns and personnel.
95
Identify these bikes! / Re: Old monstrosity form a scrap yard needs ID
« Last post by Rex on January 11, 2018, 10:51:58 AM »
Machine gun or artillery piece? :o
Hmmm...I was thinking more potato delivery or somesuch mundane use.
Shame it wasn't a Kettenkrad as they fetch big money now.
96
Identify these bikes! / Re: Barr and Stroud mystery bike
« Last post by JFerg on January 11, 2018, 08:33:26 AM »
I have the sales records for B&S, and from that have extracted a fairly complete record of engine production.  It's not 100%, however.

Two 500cc engines were sent to Prague.  The photo is of a Czech bike, taken in Czech, so might be the destiny of one engine.....
97
British Bikes / Re: 1951 Royal Enfield Model S S672
« Last post by R on January 11, 2018, 03:53:45 AM »
That brochure pic for 1952 certainly nails the Miller part of the electrics.
Interesting that it mentions a Lucas Magdyno as an option, if you can't make one fit ?

That tank badge looks later though, wasn't 1953 the first year for them. ?
That exact pic is in Gordon Mays' book as a 1954 model.
(noting previously that he has nothing for the Model S for earlier years).
98
Identify these bikes! / Re: Barr and Stroud mystery bike
« Last post by R on January 11, 2018, 03:48:59 AM »
Very stylish looking bike - that front guard is quite distinctive on it own.
Quite a lot of brakes for 1924 too, although could be from a later year, and earlier engine.

Didn't you have the production records for B&S, or was that just part of them ?
99
Identify these bikes! / Re: Old monstrosity form a scrap yard needs ID
« Last post by R on January 11, 2018, 03:43:50 AM »
Distant half ancestor to the Kettenrad ?
http://www.patriotfiles.com/forum/imgcache/1584.png
Actually there is no similarity whatsoever, although the concept is not that different,
if you take away those half tracks.
Maybe the machinegun or artillery piece that was mounted on it is still there, somewhere ?

Have you/ can you have a close study of that differential.
If it is purpose made for the job, rather than something welded in place,
then that puts it into a different ball park.

Otherwise, maybe "The monstrosity from Bulgaria" isn't so inappropriate ?
100
British Bikes / Re: Amal T15TT32
« Last post by cardan on January 10, 2018, 09:33:16 PM »

That looks nice!

I can date the BTH magneto (to the month) if you let me know the details on the brass plate.

Cheers

Leon
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