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December 14, 2020
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Hi all, Here is probably the first of many questions regarding the restoration of my D1. I have now stripped the frame of all the old paint and discovered that someone has cut off the two lugs that bolt the seat to the frame. I noticed that I could buy a complete aftermarket seat that came from India. Looked good untill I measured it and found that it is much smaller that the origonal, so I left it. My problem now is that I can't paint the frame untill I have welded the lugs back on but I need to know the right dimensions of the lugs. What's your advice? Get the smaller seat, and make the lugs smaller, or repair the original seat?
Plus, can anyone tell me what screws into the two upright tapped holes on the footrest bar mounting please?
Thanks so much in advance for your help. Cheers.. Phil
April 19, 2018
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Hi Phil, I've started you off in a new topic, imaginatively titled " Phil's D1" It'll be easier for you to have all the stuff together.
For starters here's two pages that will aid your search for bolts, screws and all the other related ironmongery
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Good luck with your bike,
Stewart
'55 D3 Battery; '58 Square Four (project); '59 D1 direct lighting plunger; '59 Tiger Cub; '60 5TA; '76 FS1-E; '91 GTR 1000; '97 Honda Sky SGX50.
February 8, 2020
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I hope these two photos help, one bolt had sheared off at some point.
Colin
June 27, 2018
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Original is better than a reproduction (my opinion) sounds like the one you measured is for a rigid frame anyway.
June 27, 2018
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Here is the bracket you need to add, not to difficult to fabricate, needs a tube to support it an welding up.
If your seat is undamaged at the leading edge then you can bolt the springs on and make these brackets to suit.
August 27, 2013
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There are two common sizes of “Lycett” style saddle. The larger type fitted to bigger bikes, and the smaller ones fitted to lightweights. Bantams had the smaller ones.
January 18, 2020
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Search eBay for "bsa bantam lycette solo seat". lots of listings.
😀
Mike H --
Murphy's 4th law of motion states that any small object that is accidentally dropped will immediately hide itself under a larger object.
December 14, 2020
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Good morning and thank you so much for everyone who responded. Great help with the pictures and advice. I didn't realise that there were 2 sizes to the seat. The seat that came with the bike was the big one obviously, and I have now found a source here in Oz that can supply a new one. Thanks again.. Phil
January 18, 2020
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Mike H --
Murphy's 4th law of motion states that any small object that is accidentally dropped will immediately hide itself under a larger object.
December 14, 2020
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Hi everyone, Thought I would post a few pictures of the progress so far. And a question... Of course !!
The Photos speak for themselves... But as regards re chroming the chromed bits. What do you think of this stuff ?? ( don't all shout at me at once)
The product is called...alsa easy chrome spray paint. I don't know if there is the same in UK, but it looks pretty impressive. It's not just one spray can... there is quite a procedure getting it on.
Now, I haven't gone ahead, obviously, just wondered if anyone has done it, and is it worth it ? Chroming is HORRIBLY expensive. And a few of the bits don't really need to be hard chrome, like the bits on the rear shockies.
As always.. I appreciate your comments, and thanks again for being able to chuck some ideas around. Cheers... Phil
August 27, 2013
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I can’t say anything about the chrome paint, as I have no personal experience of it, but I have seen some encouraging information online. It’s got to be worth a try?
You may want to get the alignment of that frame checked before you go much further with it, the top tube definitely looks bent in your picture.
June 27, 2018
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Looks like a good start, I think Glen is correct the top tube maybe distorted.
Also check around the stand stop plate bolts, these appear to be twisted, this could be why the stand has metal added to the feet.
A little twisting here isn't a problem if the stand feet have been modified, again dry build up before paint.
An don't worry they all are like this after 70 years!
August 27, 2013
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Yes, those stand stop plate mounts are definitely twisted.
December 14, 2020
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Thanks once again, Glen and rhi010 for your replies, I really appreciate your input. Thank you so much for pointing out the stop plate mountings were not straight, worse than that actually. You can see from the photo that one is braised up ( not a 
recommendation if I recall) and the one that is braised up is a different size to the other and split in half anyway.
So.. My thought at this stage is to cut both the threaded lugs off and start again with a couple of metric nuts and bolts to save any bother trying to get whitworth. What do you think? Or what is your recommendation please?
The other thing that worries me, is the fact that the 2 pipes are not welded together at the top between the 2 lugs..is this right??
Thanks again in advance. Really appreciate your help here....
January 9, 2013
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hi Phil the engine bolt threads were usly Whitwerth into the D7 modle the frame can be BSF or CEI theads so standard metric will do , coz m/cycle metric are usly fine thread im told
August 27, 2013
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You will have to do something quite significant with that brake/footrest mount. It’s a common failure point, usually from people sitting on the bike while it’s on its stand, or from accident damage where the footrests get hit hard. The two halves of the pressing need welding back together, the brazed repair needs removing and replacing with a new part in steel, and the whole lot needs re-aligning before welding back together. I had a similar problem on my D3. If you search my threads you’ll find it.
June 27, 2018
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I just looked at a frame of mine an it isn't welded together either, not sure why.
Yes a welding and fabrication job here, you will need the parts, stand, stand stop plate, footrest bar.
Then you can see how this goes together, be careful as the stand stop plate bolt is close to the crank case so best to have these in also.
December 14, 2020
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Hi ..rhi010, Glen and Sunny,
As always, thanks for your input. OK, I have ordered all the necessary parts, stop plate, footrest rod & spacers..and so on. I'll get my measurements right and start cutting and rebuilding. I'll put some pictures up as I go.
By the way Glen, I would like to search your threads on this subject as you suggested, but being a bit " digitally challenged" I couldn't figure out how to do it. Suggestions would be appreciated.
Thanks again guys, really appreciated. Cheers... Phil
June 23, 2013
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Phil53 said
...By the way Glen, I would like to search your threads on this subject as you suggested...
If you click your mouse on 'Glen Anderson' under his post avatar (left top of his post) you will get to his profile, then you can see posts he's started and those he's commented in. With any luck you can spot the relevant ones in the started list.
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