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Douglas 1913 Model P motorcycle

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Douglas 1915 3 Spd-Gearbox and Clutch

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Lat Fuller

2025-07-20, 02:39:50
I am pretty desperate for a rear cylinder for my veteran Douglas 1917 2 3/4hp "W" model.   I there is anyone who may have one of these that can be re-sleeved or know where I may find one I would be very pleased for the help.  I have a number of engine parts that I can exchange such as matching crankcases, conrods, crankshaft, flywheel etc. Any help appreciated.

Lat Fuller

2025-06-04, 05:57:00
Does anyone have the specifications for the oil inlet valve spring for early 2 3/4 engines - Part number 424.   I have tried to order one from the club spares but apparently Jeff Swan is indisposed at the moment.

skapoor

2025-05-19, 09:23:12
I am looking for a carburettor for veteran Douglas motorcycle engine-13651. Could you please help me with this?

Engine Number YE6963

Started by Douglas_owner, 19 Jul 2006 at 12:36

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Douglas_owner

Hello I have a Douglas engine on the engine is stamped YE6963.
Can anyone tell me how much cc it has  and in what year it was build ?

Greetings
a Douglas_Owner

trevorp

I think it is a 1926 ew 350 cc

Douglas_owner

I thought that it is a 600cc engine .
Are you sure with the 350cc ?

Greetz
Hagen

alwyn

Hello Hagen,
I might help to identify the engine if you could provide a photo - take this link for instruction on how attach your photos to a new post or to e-mail them to us.

Alwyn
Global Mod
Quotable Quote - "640 k should be enough for anybody"! - Bill Gates - 1981.

Douglas_owner

Ok I will make a picture of my douglas stuff in the next days and put them in this thread.
Greetings
Hagen

Reg

Quote from: Douglas_owner on 19 Jul 2006 at 12:36
Hello I have a Douglas engine on the engine is stamped YE6963.
Can anyone tell me how much cc it has  and in what year it was build ?

Greetings
a Douglas_Owner
YE 6963 is a 350cc side valve engine fitted to the EW model of c1926.
YE is the engine prefix for these models with the frame prefix being MF. The 600cc version of the EW from 1927-28 and the 600cc E29/F29 from 1929-1930 had an engine prefix of EH or S/EH. The later and larger 600cc models from the 1930-31 S6/T6 on were prefixed EQ for the engine and YF for the frame.

Reg

Dave


Douglas_owner

Big thx Dave.
Maybe I´am to stupid to put pictures up to the internet