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Scribbler's D1
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Scribbler1953
BH31 7BS
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August 22, 2018 - 6:05 am
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Hi Guys,

I understand that this headlight should have an internal switch cable operated from the handlebars, does anybody have pictures of this arrangement please so that I can identify what's needed.

Photo's all over of a shell would be great to as mine seems to have had numerous additional ones made and would be nice to know which to fill

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Hans Kreuzen
Queensland Australia
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August 22, 2018 - 9:11 pm
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Have a look on my Bantam page for detailed information regarding your head light switches and shell

[Permission to view this media is denied]

HTH Hans

1950 D1 plunger for daily use, Concourse 1948 D1 rigid, Black 1953 D1 plunger nearly done and a 1949 rigid D1 survivor.

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Scribbler1953
BH31 7BS
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August 23, 2018 - 7:32 am
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Hi Hans, thanks so much a lot of really interesting info there and great pictures. Should be interesting trying to source the missing parts.

I haven't found a parts list yet that even shows them.

 

David

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Hans Kreuzen
Queensland Australia
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August 23, 2018 - 11:14 am
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Glad you liked my web page David, It might be easier to fit a later type headlight as they are easier to find and BSA used them in 1951 anyway, it's the same as the one I used on my 1950 D1 in the picture.[Permission to view this image is denied]
[Permission to view this image is denied]

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1950 D1 plunger for daily use, Concourse 1948 D1 rigid, Black 1953 D1 plunger nearly done and a 1949 rigid D1 survivor.

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Scribbler1953
BH31 7BS
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February 21, 2018
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August 27, 2018 - 1:51 pm
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Hi, can anyone one help with details of thread form and sizes of following fasteners as no info on the fastener spreadsheet.

15-87       chain guard bolt

21-5400    mudguard stay bolt

21-5401    mudguard stay bolt

21-5452    stand and brake pivot bolt

21-5462    top yoke clamp bolt

21-6173    carrier fix screw

90-256      magneto cam screw

Thanks in anticipation

David

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sunny
Norfolk
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August 27, 2018 - 4:56 pm
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i  have   cam  screw   lock & plane   washers    &  felt     if needed     is  it  a  GENYMAG     you  have  fited

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Piquet
West Norfolk
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August 28, 2018 - 12:54 am
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Fastener list here ** Please log in to view **

I'm not a complete idiot ............................................ some parts are missing.

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Scribbler1953
BH31 7BS
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August 28, 2018 - 4:48 pm
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Hi Sunny, my magnet found the screw eventually and have the 2 washers but felt?? where does that go please. 

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Scribbler1953
BH31 7BS
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August 28, 2018 - 4:50 pm
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Piquet, the numbers I quoted are either not on the list or there is no information against that part number

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Piquet
West Norfolk
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August 28, 2018 - 7:45 pm
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Sorry, just spotted you said they weren't on the fastener list.

On an early D1 anything screwing into the engine alloy will be Whitworth thread

As a general rule BSA often used Cycle thread for frame fixings with nuts, threads actually in the frame (front petrol tank fixings and stand bolts for example) will be BSF.

Most Wipac electrical fixings seem to be BA.

hope-that-helps

I'm not a complete idiot ............................................ some parts are missing.

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sunny
Norfolk
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August 28, 2018 - 7:52 pm
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hi  David     the  parts   numbers  look  like      cycle  thred    thats   26 tpi          the   top  yoke   pinch   bolts  chaged  to  BSF    thats  probly  5/ 16 x22 tpi  instead   of   26 tpi       the  lenth  is     2 " or   2 1/4 "       mudgard  stay  bolts   1/4 "  26  BSF or  cycle  thred    bolts   going  into  the  ali casing    try  1/4 " whitwerth       the  bolt  at   the  frount  of  the  chane  gard      probly  1/2 "   long      ,,the   felt  oil  pad  on   WYPAC  generatos is  about  12  O clock   from  the  cam    the  LUCAS    geny  felt  pad  is   at  about  3 Oclock,,   please look   for  a  SPEC  number   for  I/D  

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Scribbler1953
BH31 7BS
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August 30, 2018 - 4:26 pm
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Hi Sunny, thanks for the bolt info that should sort me out.

The Gennymag is S5/MK8  Spec 1130 there is a big lump of what looks like "old style" underlay wedged in a holder at about 2 o clock position, so guess that's it thanks.

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Scribbler1953
BH31 7BS
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August 31, 2018 - 5:02 pm
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Hi, can anyone help by supplying a picture of the correct rear light assembly that should be fitted to this bike.

Picture 1  is the number plate bracket and you can just about make out where a light assembly had been fitted

Picture 2  shows a bracket that was fitted on top of the number plate bracket and the lamp assembly that was fitted to it.

David[Permission to view this image is denied]
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