Douglas - For Sale Items

Douglas 1913 Model P motorcycle

Douglas - Wanted Items

Douglas 1915 3 Spd-Gearbox and Clutch

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Dave

2025-01-07, 19:16:39
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Dave

2024-06-11, 21:02:05
Have you tried the new Drafts feature yet? I just lost a long message today and learned my lesson. It is a good idea to save a draft of any long post you are writing. You can then just keep writing and keep saving a draft, knowing you have a backup if there is a glitch. The draft is automatically deleted when you post the message.

Dave

2024-06-08, 19:30:04
For Sale
xman has two very nice 1950's machines available - a green 1950 mk4 and black 1951 mk5 - both in good condition and running well.

Dave

2024-06-07, 03:13:36

Dave

2024-06-03, 09:23:05
For Sale
Duncan has just listed his green and cream 1957 Dragonfly for sale with spares and documents.

Dave

2024-06-02, 09:34:05
Parts avalable
alistair still has parts available - barrels, carburettor, castings - see all listings.


Dave

2024-06-01, 19:33:27

Dave

2024-05-28, 01:09:46
Welcome to the new site!
Recommended viewing for a fast start...
 - Quick Tour of the Front Page
 - Quick Tour of the new Attachments
Learn all about attaching photos in the User Guide. Any problems with anything please Contact us     Faulty links fixed - 01June2024

Recent posts

#81
Hello EW-Ron,

thank you very much for your help.

Everything is fantastic what I do not know !

Now I can complete the work on the Lamp.

The Vincent BTH description is very helpfull.

Thank you

Christian ( who now can kill the copper worm )

#82
Hi there, firstly wishing you all a happy new year.
I'm currently working on my 1934 Model Z, with the end target in sight. My biggest hurdle is the lack of a kickstart pedal / lever. My gearbox is a 4 speed and has a splined, tapered shaft from the gearbox to accept a suitable lever / pedal which I'm sure  is not unique to the Model Z and was fitted to previous and possibly later Douglas models. Could anybody point me in the direction of some of the other models this is likely to have been fitted to as this would allow me to broaden my present fruitless search for one.

Regards
Chris
#83
Quote from: EW-Ron on 01 Jan 2025 at 04:15 Charge will bypass the resistance wire/coil there.
Only to be used when you know your battery is low. ?

If you feed power into your switch, you should be able to figure out where
power is coming out of it, in various switch positions - and wire it accordingly.
This may require some trial-and-error. And maybe lots of it !

It will be a bit simpler if someone has a factory diagram of this.
Hopethishelps.

P.S. The VOC  has this for a mid 30s BTH system.
Maybe some is common with your arrangement. ?
https://www.vincentownersclub.co.uk/attachments/diagram-pdf.22635/

There must be an equivalent diagram somewhere in the Douglas world.
#84
Aren't old electrics fun !

OCDF  is Off, Charge, Dim, Full   as you suggest.

This 4 position switch is an improvement over the previous 3 position, 
which was always charging the battery - and thus often boiled it.
Charge will bypass the resistance wire/coil there.

Dim will supply power to the small auxiliary (pilot) light, and Full will supply power to the main globe.
You may or may not have a dipswitch on the handlebars, to a 2 filament main globe.
Such may be an update to the earlier system.

I'm afraid I've not met your actual BTH switch.
There are many words on this forum about them, but no actual makers info/schematics ?



 
#85
Hello ,
I am Christian and I am working on an E32.

The BTH Headlamp wich is mounted has an Cable Connector.

( Hope you understand my " perfect " english)

The switch is working and I rewound the Ammeter yesterday with success.

No I have not enough knowledge to take all cables on the right terminal ,
cause off I did not know the exact meanings of the Letters of the terminals.

Can anybody help me with a drawing or a list with the descriptions ?
The switch has 4 positions , Off , C , D, F.
What does it means ? C = Charge ? .......

Thank you very much for your help ,
and I wish to all a happy new year

Christian
#86
Hai George
Ik heb voor jou voorrem hendel en compressie hendel, dit zijn nabouw van een goeie kwaliteit, ook heb ik nog een originele remvoering houder voor de achterrem heb je nog interesse? 
Gr Hans Overveld
#87
Members' Gallery and Stories / Re: My very first Douglas
Last post by Sir Rick - 23 Dec 2024 at 22:39
Have put on a couple of hundred kilometres since; over a few shorter rides.
She starts first gentle kick every time, and idles well.
Runs well until more than half throttle, and anything more, it seems to have nothing there.
Pulled carbs, and she has #75 main jets. Could be the reason for feeling like low on fuel with throttle opened up.
I want to try a pair of # 85 main jets, but unsure as to where to get them from.
These are the short jets, and look identical to the normal Mikuni jets (without actually having both side by side.)

Are these readily available over in the UK, or even in club spares?

Cheers and thanks for your help.
#88
General Douglas Discussion / 2014 machine register
Last post by mikelarcombe - 18 Dec 2024 at 18:05
hi i have three post war douglas's t35 1947 was same owner for 50 plus years who was a member for over 50 years and has the  plaque to prove it.
a mk5 1951 with 90 plus front wheel on 19 inch rim this bike has alloy rims alloy mudguards front and rear not sure what it may have been used for in the past
 and another  mk 4/5 metalic blue not yet all together but seems all there.
nice to see they are all listed in the above register so must have been known in the club for sometime  i am awaiting membership cheers mike, will try to upload some pics asap
#89
General Douglas Discussion / Re: re post war forks
Last post by mikelarcombe - 17 Dec 2024 at 16:35
hi eddie thanks for your thoughts and replies i seem to get the info over in stage's, as you said i see the 80/90 forks with more of a wrap around mounting, i should have said at the start my wheel is a 19 inch  but i will check my bushes  not sure if the leading suspension arm is at the same angle as the brake stay  and if not what complications that may cause, i wondered if any members had the same set up.
regards mike
#90
General Douglas Discussion / Re: re post war forks
Last post by eddie - 17 Dec 2024 at 10:39
Mike,
         Your earlier posting stated that you were having problems when braking heavily - I just mentioned 2 other causes that I think might be more likely culprits than the substitution of a 'Plus' front brake. My reason for thinking it may not be the change of brake is the fact that several other owners have done the same without making any comment about side effects. However, the brake reaction lug on Plus forks is positioned further away from the leading link pivot than on Mark forks, and is a different lug with a larger contact area where it is brazed to the main fork tube (presumably to cater for the higher stresses generated by the larger brake).
  Your last posting states that you have the Plus wheel in your Mark - whereas the original posting says it is just the brake - maybe, the change in wheel diameter (19" to 21") is having some effect on the handling.

Regards,
             Eddie.