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Author Topic: Douglas 1915 600cc flat-twin good running condition  (Read 8782 times)

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Offline Peter kuiper

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Douglas 1915 600cc flat-twin good running condition
« on: 12 Jan 2011 at 19:33 »
Douglas 1915 flat-twin.
600 cc.
Frame number 1792.
Engine number 2201.
Good running condition.
€13.950,-
www.gerdes-amc.nl









« Last Edit: 22 Jan 2011 at 13:55 by Peter kuiper »
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Offline Dave

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Re: Douglas 1915 600cc flat-twin good running condition
« Reply #1 on: 13 Jan 2011 at 19:18 »
Photos added.
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Offline MRD

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Re: Douglas 1915 600cc flat-twin good running condition
« Reply #2 on: 13 Jan 2011 at 20:00 »
Hi All
This looks like a 3 1/2hp, which should make this a 500cc and not the stated 600cc.
It looks good in its un- restored condition.
Regards        Martin
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Offline graeme

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Re: Douglas 1915 600cc flat-twin good running condition
« Reply #3 on: 14 Jan 2011 at 09:20 »
It's a 4hp Martin, the giveaway being the slightly radial fins on the top af the valve chambers. On the 3 1/2hp they are all parallel.

Cheers, Graeme
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Offline MRD

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Re: Douglas 1915 600cc flat-twin good running condition
« Reply #4 on: 14 Jan 2011 at 15:15 »
Hi Graeme
I must admit I was only going by the lack of oil sight glass on the crank case and exhaust design.
Regards      Martin
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Offline graeme

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Re: Douglas 1915 600cc flat-twin good running condition
« Reply #5 on: 14 Jan 2011 at 20:45 »
Indeed. I must admit I am surprised to see fitted what I thought was the later clutch arrangement - I thought the cone clutch was still being used at this point. I also note that the forks are slightly beefier than those fitted to my 3 1/2s, but I have seen these fitted to a 1916 4 hp model.
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