My B50SS

Here you can publish Your projects bikes.
Only BSA singles

Moderator: minetymenace

BasilF
>120
>120
Posts: 133
Joined: Sun Dec 18, 2011 10:35 am
Location: Countesthorpe, just south of Leicester.

My B50SS

Post by BasilF »

After a lot of looking I finally bought a US import B50SS with lots of parts missing and a UK B25SS that was nearly complete. The object was to end up with a restored B50SS. When I've done that I'll decide what to do with the remaining parts.
1.jpg
First job was to get them stripped down. Easy Riser stand made this a lot better for the ageing back.
2.jpg
B25 frame had all 4 electrical box brackets broken. B50 frame had the side stand bracket and one seat bracket broken. New one welded on using the seat pan as a jig.
3.jpg
4.jpg
Seat pan was cracked and bent needing some repair and still needs more work.
But it's alot better than the B25 seatpan.
5.jpg
Damp English weather help in place by seat foam is obviously cruel to seat pans. I think this one is beyond repair.
6.jpg
Next job is side stand bracket
7.jpg
User avatar
Ian Hingley
>1400
>1400
Posts: 2065
Joined: Sat Jun 30, 2007 2:50 pm
Location: Bristol, UK

Re: My B50SS

Post by Ian Hingley »

BasilF wrote:Easy Riser stand made this a lot better for the ageing back.
Not sure if I've an aching, ageing back or an ageing, aching back, but it certainly 'ckin hurts!

Ian
Last edited by minetymenace on Mon Jan 06, 2014 3:09 pm, edited 1 time in total.
Reason: I'll tidy your BBCodes for you Ian!!
66 BSA Victor Enduro, 72 BSA Lightning, 62 BSA B40 trials, 2015 Truimph Street Twin, 89 H*nda Bros 650, 2000 Aprilia Moto 6.5 Starck
User avatar
Mark Cook
>1400
>1400
Posts: 4788
Joined: Fri Sep 10, 2004 8:45 pm
Location: Goldthorpe South Yorkshire
Contact:

Re: My B50SS

Post by Mark Cook »

Just the place for a project like that, nice shed. Still better a neighbour control fence :thumb
Motorcycles and other parts manufactured by PES

+44 (0) 1709 894192
https://www.ccm-britain.co.uk(online shopping experience)
User avatar
minetymenace
Gerry1
Gerry1
Posts: 7779
Joined: Wed May 26, 2004 1:00 am
Location: On the edge of Salisbury Plain, England
Contact:

Re: My B50SS

Post by minetymenace »

And a cage for prisoners! :laugh
There is no evidence to support the notion that life is serious.
Abyssinian Wire-Haired Tripehounds Gnash.
User avatar
Ian Hingley
>1400
>1400
Posts: 2065
Joined: Sat Jun 30, 2007 2:50 pm
Location: Bristol, UK

Re: My B50SS

Post by Ian Hingley »

and rural Leicestershire sounds so quaint! :thumb

Ian
66 BSA Victor Enduro, 72 BSA Lightning, 62 BSA B40 trials, 2015 Truimph Street Twin, 89 H*nda Bros 650, 2000 Aprilia Moto 6.5 Starck
User avatar
Northern_Nate
>10
>10
Posts: 11
Joined: Thu Sep 12, 2013 4:39 am
Location: Ottawa, Canada
Contact:

Re: My B50SS

Post by Northern_Nate »

Very cool! Looking forward to seeing some more pictures.

I haven't even started my restoration work yet. Ordered some pieces, but winter is a bit too cold these days to spend time in the garage.

Happy New Year!

Nate
1971 B50SS
BasilF
>120
>120
Posts: 133
Joined: Sun Dec 18, 2011 10:35 am
Location: Countesthorpe, just south of Leicester.

Re: My B50SS

Post by BasilF »

Cut the bracket bracket off in line with the stops. Cut the welds on the doubler plate and chiseled it off. Took a template off the B25 frame and welded in new front plate.
8.jpg
Decided to make the bracket hole 3/8dia same as the bolt. Using the spacer removes too much metal from the (already too weak) bracket. Bent and welded on doubler.
9.jpg
Turned up a new spring anchor and welded it in.
10.jpg
Straightened the very bend side stand and fitted it all together. Seems to work fine. There is a small bulge in the side stand where I straightened it. I'll live with it.
11.jpg
While looking at the B50 engine I was wondering where the correct tappet cover had gone.
12.jpg
Then I spotted it. Wonder how many years it has been jammed in there. I got it out but the thread is a bit knackered.
13.jpg
Next job is to sort out the bent and cracked pillion footrest brackets.
beat
>1400
>1400
Posts: 5819
Joined: Sun Jun 04, 2006 5:33 pm
Location: Switzerland

Re: My B50SS

Post by beat »

BasilF wrote: Wonder how many years it has been jammed in there.
:lol: :laugh :lol: :laugh
typical <069 B50icon
User avatar
minetymenace
Gerry1
Gerry1
Posts: 7779
Joined: Wed May 26, 2004 1:00 am
Location: On the edge of Salisbury Plain, England
Contact:

Re: My B50SS

Post by minetymenace »

:laugh
Mr Cook makes those covers that don't fall off
There is no evidence to support the notion that life is serious.
Abyssinian Wire-Haired Tripehounds Gnash.
midgie
>1300
>1300
Posts: 1303
Joined: Fri Jul 30, 2010 7:50 pm
Location: church crookham hants

Re: My B50SS

Post by midgie »

minetymenace wrote::laugh
Mr Cook makes those covers that don't fall off
thats some 'claim' that they dont fall off. they will if not done up correct, with or without o rings.
BasilF
>120
>120
Posts: 133
Joined: Sun Dec 18, 2011 10:35 am
Location: Countesthorpe, just south of Leicester.

Re: My B50SS

Post by BasilF »

Pillion footrest brackets were knackered on both swinging arms. The early type is one 4mm plate and the later type is 2 x 2mm plates so not any stronger but less likely to pull a lump out of the swinging arm.
14.jpg
15.jpg
Managed to grind the old ones off and replaced with 2 x 3mm. They still don't look that strong.
Back in the 70s they only had to support the weight of a teenage girl. Now any pillion passengers are likely to be much heavier.
16.jpg
These are the new ones welded on. Right angle bent in a vice between two thick plates then tacked on and the flanges heat bent round the tube.

As a diversion I made a front chain guard using the drawings on this site.
CameraZOOM-20140118160208732.jpg
Its only now looking at the picture that I see I forgot to round off the corners on the support bracket!
BasilF
>120
>120
Posts: 133
Joined: Sun Dec 18, 2011 10:35 am
Location: Countesthorpe, just south of Leicester.

Re: My B50SS

Post by BasilF »

Restarted my B50 after a long delay for another project.

Rebuilt front forks with new staunchions. Internals were mostly OK. Removed rib on the sliders and gave them a bit of a polish. No springs in at present dither about whether to put back origional springs or buy some variable rate ones.
IMG_20180918_111515.jpg
Wheels were looking rather sad. Dismantled them. Took hubs and back plated for vapour blasting then rattle can sprayed them with etch primer, alluminium paint and clear coat.
IMG_20180829_173212.jpg
IMG_20180828_141551.jpg
Bought Valtrue stainless rim and spoke kits from Devon rim company.
IMG_20180912_114444.jpg
IMG_20180912_121312.jpg
Both laced OK and rear trued. Now waiting for some parts to come back from zinc plating so I can mount replace the front wheel bearings and true front wheel. Will mount wheel in inverted front forks and centre rim between sliders while truing.
Last edited by BasilF on Tue Sep 18, 2018 6:19 pm, edited 2 times in total.
beat
>1400
>1400
Posts: 5819
Joined: Sun Jun 04, 2006 5:33 pm
Location: Switzerland

Re: My B50SS

Post by beat »

:thumb :thumb :thumb
BasilF
>120
>120
Posts: 133
Joined: Sun Dec 18, 2011 10:35 am
Location: Countesthorpe, just south of Leicester.

Re: My B50SS

Post by BasilF »

Wanted a centre stand but couldn't get the exact aone so bought an OIF A65 one. Pivots fit fine but side lever stops the side stand working.
IMG_20180919_134144.jpg
So cut it off and then removed the end bit.
IMG_20180919_142644.jpg
Drilled a hole near the base and welded the end bit in.
IMG_20180920_151527.jpg
Since the side stand moves out as it moved down, it just clears.
IMG_20180919_151550.jpg
IMG_20180919_151612.jpg
<203
BasilF
>120
>120
Posts: 133
Joined: Sun Dec 18, 2011 10:35 am
Location: Countesthorpe, just south of Leicester.

Re: My B50SS

Post by BasilF »

Finally I found something that was cheaper than I expected.
IMG_20180921_161733.jpg
This box of bits for zinc plating was £45. Now I can finish rebuilding the brakes.
IMG_20180921_161856.jpg
BasilF
>120
>120
Posts: 133
Joined: Sun Dec 18, 2011 10:35 am
Location: Countesthorpe, just south of Leicester.

Re: My B50SS

Post by BasilF »

Got the black bits back from powder coating so was able to install the head and swinging arm bearings and make it start to look like a motorcycle again.
I8
IMG_20181123_110851.jpg
Pleased that the centre stand height was about right as a previous poster had to add metal to the base of his OIF twin centrestand to make it work on a B50.

Next job is to paint the mudguards, site covers and 3 gallon tank.
Attachments
IMG_20181123_105241.jpg
lathejack
>180
>180
Posts: 190
Joined: Wed Oct 28, 2015 9:52 pm
Location: Nottinghamshire.

Re: My B50SS

Post by lathejack »

It's coming along great, the bare rolling chassis on those bikes looks so good it's a shame to have to cover them up with a fuel tank, seat and side panels.

I'm getting jealous now, others have finished fine restorations, or like yourself are making great progress with their projects while my B50 still sits on the bike lift untouched for many months since making a start two years ago.
User avatar
koncretekid
>900
>900
Posts: 942
Joined: Sun Nov 20, 2005 1:22 am
Location: Yarmouth, Nova Scotia

Re: My B50SS

Post by koncretekid »

Is that work stand homemade? I (we) are always looking for a simple lightweight work stand we can take with us and yours looks like a good one. Is it lifted by a screw jack or some hidden hydraulic operation? (expanded the photo and now I can see the screw jack) I'd like to see photos from the other side.

And by the way, the bike looks great, down to the last detail.
lathejack wrote: Fri Nov 23, 2018 9:52 pm
I'm getting jealous now, others have finished fine restorations, or like yourself are making great progress with their projects while my B50 still sits on the bike lift untouched for many months since making a start two years ago.
So what are you waiting for? Sometimes you just have to tell yourself "today I'm going to get something done on my project." I usually use a written day timer type calendar and make a list of what I want to do tomorrow. Sometimes that thought keeps getting put back on the list, but it gives me an incentive to get it done. This week I rebuilt the carbs on a H*nda CB350 cafe bike I'd built, put new coils on it (aftermarket - - didn't fit right - - what else is new?), after which it started and purred like a kitten, or actually quite a larger cat with its dual megaphones, besides digging up my septic tank which plugged up the day of our Thanksgiving Day dinner party, and rebuilding the air exchanger in my house. The joys of being retired.

Of course, I'd rather be working on a BSA!

Tom
life's uncertain - go fast now
User avatar
Ian Hingley
>1400
>1400
Posts: 2065
Joined: Sat Jun 30, 2007 2:50 pm
Location: Bristol, UK

Re: My B50SS

Post by Ian Hingley »

koncretekid wrote: Fri Nov 23, 2018 10:29 pm Is that work stand homemade?
Hi Tom

Looks like an Eazy Rizer to me:

https://on-bike.com/product/motorbike-l ... ginal-red/

Got one myself and use it a lot. Saves both my old back and old knees and doesn't take up too much space in the garage.
IMG_20180128_171151562m.jpg
Guess they have dealers your side of the pond.

Cheers

Ian
66 BSA Victor Enduro, 72 BSA Lightning, 62 BSA B40 trials, 2015 Truimph Street Twin, 89 H*nda Bros 650, 2000 Aprilia Moto 6.5 Starck
BasilF
>120
>120
Posts: 133
Joined: Sun Dec 18, 2011 10:35 am
Location: Countesthorpe, just south of Leicester.

Re: My B50SS

Post by BasilF »

Yes its an Eazy Rizer made by On-Bike in Tamworth UK. It can be a bit fiddly to set up for your bike with multiple ways of supporting it depending on whether you want to take the wheels off or not. But it's great once set up and much smaller to store than a table lift.
User avatar
koncretekid
>900
>900
Posts: 942
Joined: Sun Nov 20, 2005 1:22 am
Location: Yarmouth, Nova Scotia

Re: My B50SS

Post by koncretekid »

Looks like a handy lift, although their website does not show the extensions that lift by the wheels. Two of my bikes cannot be lifted under the frame due to fairing and under frame exhaust system. I haven't seen one here - - surprised the Chinese haven't made a knock-off version. I found a website that sells them here - - $650. Wheel mount accessory is another $100. We can buy the full platform lifts for around $300, so the Easy Rizer would be a higher priced option. Might have to make one - - another project!
life's uncertain - go fast now
BasilF
>120
>120
Posts: 133
Joined: Sun Dec 18, 2011 10:35 am
Location: Countesthorpe, just south of Leicester.

Re: My B50SS

Post by BasilF »

Next job is the red bits. Mudguards, tank, side covers. I have two front mudguards. One turned out to be for an A65 (19inch wheel) and was way too big and the mounting wires were too far apart. The other one was from a 1971 B25SS but the radius was slightly smaller than the 3.25x18 TT100 tire I've got fitted and was a rusty wreck. Have TT100 tires grown in the last 50 years? I guess it's inflation.
Couldn't find any NOS or patern front mudguards but I thought if I could find a suitable mudguard blank then I could probably make the supports.

Contacted Auto-cycle.co.uk to ask if they had any similar profiles and they said "REAR was our MC8 ( 6 X 2 1/4" ) , FRONT : MC2 (4 1/4 X 1 3/8" )", so I bought 2 fronts and some 6mm wire. It was a very fiddly job and I needed both mudguards but the end result doesn't look too bad. Gap to tyre is fairly consistent.
IMG_20190817_163116.jpg
The wires were tig brazed onto the mudguards which was much easier and probably a bit less brittle than welding.
IMG_20190816_163246.jpg
Did the main support first and trial fitted it as it is still possible to bend things before the short verticals are put on.
IMG_20190817_175830.jpg
IMG_20190817_175806.jpg
Rather longer than the standard mudguard but it should keep water off my legs. May still shorten the back a bit.
User avatar
Ian Hingley
>1400
>1400
Posts: 2065
Joined: Sat Jun 30, 2007 2:50 pm
Location: Bristol, UK

Re: My B50SS

Post by Ian Hingley »

Autocycle are/were definitely the bees knees for Brit mudguards. They bought the moulds, patterns,fittings, stock etc from the original main manufacturer when they went bust 40 or so years ago.

They're also pretty good for almost all other spares too.

Cheers

Ian
66 BSA Victor Enduro, 72 BSA Lightning, 62 BSA B40 trials, 2015 Truimph Street Twin, 89 H*nda Bros 650, 2000 Aprilia Moto 6.5 Starck
beat
>1400
>1400
Posts: 5819
Joined: Sun Jun 04, 2006 5:33 pm
Location: Switzerland

Re: My B50SS

Post by beat »

seams to come nicely...
:thumb

beat
BasilF
>120
>120
Posts: 133
Joined: Sun Dec 18, 2011 10:35 am
Location: Countesthorpe, just south of Leicester.

Re: My B50SS

Post by BasilF »

After reading the thread about tanks cracking at the front and tie bars being fitted to the late production ones I decided to make a tie bar for my tank.
Bracket were hamered round a simple former.
IMG_20190826_162121.jpg
IMG_20190826_162147.jpg
IMG_20190826_162214.jpg
And then welded onto the tank in a position that looks the same as the photos in the tie bar thread.
IMG_20190827_173213.jpg
Tie bar then made and test fitted. Looks OK but must get some short bolts.


Finally I decided I'd better pressure test the tank. Surprise!!! there was a hairline crack at the front. With the smallest back cap on my tig torch I was just able to get in to weld it up. Welding on the tank was no problem as, after 30 years of storage there wasn't even a smell of petrol left.
BasilF
>120
>120
Posts: 133
Joined: Sun Dec 18, 2011 10:35 am
Location: Countesthorpe, just south of Leicester.

Re: My B50SS

Post by BasilF »

P.S. Don't know why the photos are the wrong way up in the post but when you click on them, they are the right way up.
BasilF
>120
>120
Posts: 133
Joined: Sun Dec 18, 2011 10:35 am
Location: Countesthorpe, just south of Leicester.

Re: My B50SS

Post by BasilF »

Started spraying the red bits. Doing mudguards and side covers first and the tank when I've worked out how I should have done it. Paint was VERY expensive to buy but it looks like I've bought far too much. Candy red coats are primer, silver, translucent red, clear coat.
Attachments
IMG_20191006_153621.jpg
IMG_20191005_145208.jpg
IMG_20191005_135232.jpg
beat
>1400
>1400
Posts: 5819
Joined: Sun Jun 04, 2006 5:33 pm
Location: Switzerland

Re: My B50SS

Post by beat »

BasilF wrote: Mon Oct 07, 2019 12:53 pm it looks like I've bought far too much.
beter too much than to less.... :lol:
BasilF
>120
>120
Posts: 133
Joined: Sun Dec 18, 2011 10:35 am
Location: Countesthorpe, just south of Leicester.

Re: My B50SS

Post by BasilF »

Starting to look more colourful.
Starting to look more colourful.
User avatar
SteveS
>600
>600
Posts: 603
Joined: Mon Jul 10, 2006 8:28 pm
Location: Nuneaton, Warks. U.K.

Re: My B50SS

Post by SteveS »

Looking good :thumb

Just a word of warning.......... my mate used an extended front mudguard very similar to what you have fabricated. He had all sorts of problems with vibration causing the stays to break plus a split in the mudguard. He ended up trimming it back very close to the standard length (at the rear) and solved the problem. Only downside for him was that he got more road spray over himself and the bike
Steve Sewell
BasilF
>120
>120
Posts: 133
Joined: Sun Dec 18, 2011 10:35 am
Location: Countesthorpe, just south of Leicester.

Re: My B50SS

Post by BasilF »

If it breaks in spite of the extra stay then I'll make a short one.
BasilF
>120
>120
Posts: 133
Joined: Sun Dec 18, 2011 10:35 am
Location: Countesthorpe, just south of Leicester.

Re: My B50SS

Post by BasilF »

Started on the electrics. Chose to go with a modern regulator and Pazon electronic ignition. Couldn't fit the MC2 capacitor in the electrical box with those in place and the flasher unit is now stuck to the base of the electrical box.
IMG_20191027_091948[1].jpg
However it all looks quite neat when the top is back on the box.
IMG_20191027_161452[1].jpg
I bought main and headlamp looms. When they are all in place it looks quite daunting with wires from the electrical box, handlebar switches, headlamp and main looms all looking to join up on top of the electrical box.
IMG_20191027_163457[1].jpg
They were all connected up without undiscovered mistakes and although they look a bit messy, they are all covered neatly by the tank. Only a few are left to do; Alternator and ignition from the motor, front brake switch and horn.
IMG_20191028_165906[1].jpg
I tried to use the original parts were I could. The handle bar switches were fiddly but rebuildable, Ignition switch, headlamp bulb holder, headlamp switch and front brake switch were all rebuilt. The indicators and rear light were past help and the horn might have been salvageable but would need blasting and painting, new gaskets cutting and a long fiddle with the electrics so another £40 is on its way to the spares supplier for a new (replica) one.

IMG_20191030_120649[1].jpg
Front brake switch was the easiest to fix and worked first time when tested. I'm planning to make a new front brake cable with the brake switch but without the two in-line grease points. Might reuse the nipples from the old cable as the brake end is an unusual size and the handlebar end is standard 3/8 dia but longer than the ones I could buy.
skippy
>1400
>1400
Posts: 1504
Joined: Mon Dec 19, 2011 3:25 am
Location: Horsham Vic Australia

Re: My B50SS

Post by skippy »

I don't know if I would strap an electronic ignition module to a regulator heat sink.
Doug
Should never have sold them old motorbikes
User avatar
minetymenace
Gerry1
Gerry1
Posts: 7779
Joined: Wed May 26, 2004 1:00 am
Location: On the edge of Salisbury Plain, England
Contact:

Re: My B50SS

Post by minetymenace »

Well spotted Skippy...
There is no evidence to support the notion that life is serious.
Abyssinian Wire-Haired Tripehounds Gnash.
BasilF
>120
>120
Posts: 133
Joined: Sun Dec 18, 2011 10:35 am
Location: Countesthorpe, just south of Leicester.

Re: My B50SS

Post by BasilF »

Box revised so electronic ignition is on it's own heat sink. <214
Boxrevised2.jpg
Boxrevised1.jpg
Last edited by minetymenace on Mon Nov 04, 2019 9:31 am, edited 1 time in total.
Reason: Corrected as suggested
BasilF
>120
>120
Posts: 133
Joined: Sun Dec 18, 2011 10:35 am
Location: Countesthorpe, just south of Leicester.

Re: My B50SS

Post by BasilF »

Engine ready to be installed in the frame. They haven't been together for almost 6 years.
engine.jpg
However I noticed that when bolting the first crankcase half into the engine stand I had put the bolt in the wrong way and I couldn't get the engine out of the stand without cutting the bolt head off or dismantling the engine.
Rearenginebolt.jpg
I chose the first option.
Next problem was that the B50 is a very tight fit in the frame and it took almost an hour of struggling before I could get the engine into the frame with the mounting holes aligned but I have to say it looked good when done.
B50withengine.jpg
beat
>1400
>1400
Posts: 5819
Joined: Sun Jun 04, 2006 5:33 pm
Location: Switzerland

Re: My B50SS

Post by beat »

:thumb :thumb :thumb

<212
Steveskates
>20
>20
Posts: 38
Joined: Tue May 02, 2017 12:44 am
Location: Charleston, SC

Re: My B50SS

Post by Steveskates »

Do you have a picture of the bike now? Tank on and all-
BasilF
>120
>120
Posts: 133
Joined: Sun Dec 18, 2011 10:35 am
Location: Countesthorpe, just south of Leicester.

Re: My B50SS

Post by BasilF »

B50front.jpg
Only this one. I'm on holiday till end Feb so not working on it at present. Still got exhaust and petrol pipes to go. Connected all oil pipes and filled frame and it dripped oil but I thinks that's just an oil pipe not pushed on to the fitting under the engine properly.
Good spark when I kick it over so I'm hopeful it will be started some time in March. Note no wooden block under side stand.
User avatar
minetymenace
Gerry1
Gerry1
Posts: 7779
Joined: Wed May 26, 2004 1:00 am
Location: On the edge of Salisbury Plain, England
Contact:

Re: My B50SS

Post by minetymenace »

BasilF wrote:Note no wooden block under side stand.
Ah, but its not running yet.............

Keep up the good work :thumb
There is no evidence to support the notion that life is serious.
Abyssinian Wire-Haired Tripehounds Gnash.
Post Reply