Ultimately though, everything is going to require a partial stripdown at least, and reassembly 
ensuring everything is correctly lubed and ready to go.

Examples of this are wheel bearing grease having all migrating to the bottom, 
and the upper parts dry.  Steering bearings having dried up or drained out. Etc etc.
Failing to correct this could lead to poor lube, and premature wear.
All rubber parts should be checked for deterioration.
Rubber tyres and tubes are unlikely to still be safe.
Cables checked for adequate internal lube, if required.
Wiring checked for insulation integrity, and joints checked to be corrosion free.
All oiling anf grease points lubed. Etc etc.

This is frequently referred to as recommissioning - for good reason.
Hopethishelps.

P.S. Putting it in gear and rocking the back wheel will often also do the trick.
After that aforementioned soak of the bore.
This saves any damage to the kickstarter mechanism or anything deeper.

If it still won't move, you may need to dig a bit deeper.
Which is always a good plan for something idle for so long.
The last thing you want to find is congealed dirty old oil blocking oilways or sticking things etc...

With any luck, it should all be straightforward.

It only takes a VERY thin smear of rust to stick up the piston rings in the bore.
Make sure you allow it a good soak in something like WD40 or ATF before trying to force it.
And don't force it as such - a tap with a large chunk of wood on the pistons will often jar things loose, 
without any possibility of damage.
Have fun, good luck !

All,
Have just acquired a 1930 T6 which hasn't been on the road for 40 years. It was in a museum amongst other places so external it's in reasonable nick but the engine is seized. I was going to pull the heads off and the timing cover etc. First Douglas I have owned (actually first sidevalve) so any tips would be welcome and any booby traps to look out for.
Thanks in advance
Ralf

Hi All

Looking for a set of handlebars for 1914 2 3/4, Model W

Original or reproduction, either style.

Thanks Chris

Hi, did you get my message,  how much are they? Thanks. 

Douglas never offered a side stand for the Mark series. Many folk have contrived various arrangements, fabricating or adapting side stands from other marques. The LDMCC at one time even manufactured a design and sold them through their Spares service.

Doing a search the following are a few examples found here on the Forum:

https://www.douglasmotorcycles.net/index.php?msg=21583
https://www.douglasmotorcycles.net/index.php?msg=34268
https://www.douglasmotorcycles.net/index.php?msg=22006
https://www.douglasmotorcycles.net/index.php?msg=17669
https://www.douglasmotorcycles.net/index.php?msg=29116
https://www.douglasmotorcycles.net/index.php?msg=21691
https://www.douglasmotorcycles.net/index.php?msg=7644
https://www.douglasmotorcycles.net/index.php?msg=5359

-Doug

hi have not been here for a while but now getting my mk5 and t35ready for the road again did douglas ever produce a side stand and is so has anyone got any photo's of it info would be greatfully appreciated 
regards mike

Hi All

I have been approached by a member of the public who is looking to sell the medal shown in the photos below. He is of the opinion that the medal is very rare and is looking for a figure of around £400. If anyone is interested in purchasing the medal or making an offer then would they like to contact me as the club secretary and I will put you in touch with the seller.

Roy

Hi, is this bike still available? I haven't heard anything back from you yet? Thanks.