Search found 61 matches

by BasilF
Sat Feb 22, 2020 12:16 pm
Forum: Parts & Bikes wanted
Topic: 1971 BSA B25ss Centre Stand Wanted
Replies: 5
Views: 146
Flag: Great Britain

Re: 1971 BSA B25ss Centre Stand Wanted

Search Ebay for 83-2627 and the matching bolts and spring. If you don't have machining facilities then it would work OK by just cutting off the foot lever (or maybe leaving it and don't use the side stand).
by BasilF
Thu Feb 13, 2020 7:20 pm
Forum: Project bikes
Topic: Lozenge silencer
Replies: 8
Views: 342
Flag: Great Britain

Re: Lozenge silencer

Silencer looks great Jerry. Looking forward to seeing you when I get home.
by BasilF
Sun Feb 09, 2020 5:15 pm
Forum: Project bikes
Topic: My B50SS
Replies: 40
Views: 8177
Flag: Great Britain

Re: My B50SS

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...
by BasilF
Wed Jan 29, 2020 2:11 pm
Forum: Tech
Topic: grey color
Replies: 6
Views: 267
Flag: Great Britain

Re: grey color

Mine were done in Halfords rattle cans. Etch primer followed by alluminium paint followed by clear coat. Looked a good match for the originals.
IMG_20180912_114444.jpg
by BasilF
Sat Dec 21, 2019 11:30 pm
Forum: Project bikes
Topic: My B50SS
Replies: 40
Views: 8177
Flag: Great Britain

Re: My B50SS

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...
by BasilF
Thu Dec 12, 2019 5:46 pm
Forum: Tech
Topic: Fitting Allen screws to rocker box on B50.
Replies: 27
Views: 1457
Flag: Great Britain

Re: Fitting Allen screws to rocker box on B50.

Without digging out my drawing what are the reference S holes? They are the ones for the head steady. If they are helicoiling the outer holes why not those? They take more stress than the outer holes. John Having my head and rocker box on the bench now I can say that those holes have dowels in them...
by BasilF
Tue Dec 10, 2019 9:05 am
Forum: Tech
Topic: Lozenge silencer
Replies: 7
Views: 595
Flag: Great Britain

Re: Lozenge silencer

The everlasting lozenge thread misses the key information on how you get from a folded channel to a nicely rounded lozenge. There is some serious panel beating skill required there.
by BasilF
Sun Dec 08, 2019 7:42 am
Forum: Tech
Topic: Fitting Allen screws to rocker box on B50.
Replies: 27
Views: 1457
Flag: Great Britain

Re: Fitting Allen screws to rocker box on B50.

Good point Skippy. The threads are sound and I can easily remove the head with bolts holding the rocker box so I'll save myself the cost of helicoils until I need them.

It can be hard to maintain a balanced view during a restoration. Who said "perfection is the enemy of progress".
by BasilF
Sat Dec 07, 2019 4:21 pm
Forum: Tech
Topic: Fitting Allen screws to rocker box on B50.
Replies: 27
Views: 1457
Flag: Great Britain

Re: Fitting Allen screws to rocker box on B50.

Thanks John. I think you are right. I did a few sums which suggest that a UNF helicoil would still be weaker than a UNC thread straight in the aluminium so I'll use UNC helicoils. I might also use hex bolts instead of Allen screws.
by BasilF
Fri Dec 06, 2019 6:36 pm
Forum: Tech
Topic: Fitting Allen screws to rocker box on B50.
Replies: 27
Views: 1457
Flag: Great Britain

Re: Fitting Allen screws to rocker box on B50.

The UNF/UNC issue isn't about what is originally there. The fine UNF thread will be better at pulling down the rocker box but what is the thread profile of the outside of a UNF helicoil compared with a UNC helicoil and will a UNF helicoil take the load without stripping the cylinder head? I suppose ...
by BasilF
Fri Dec 06, 2019 12:39 am
Forum: Tech
Topic: Fitting Allen screws to rocker box on B50.
Replies: 27
Views: 1457
Flag: Great Britain

Fitting Allen screws to rocker box on B50.

I want to fit allen screws to my rocker box so I can remove the head and rocker box while the engine is in the frame. My questions are; 1: Should I use UNC or UNF helicoils? UNF will pull the box down better and are the helicoil (external) threads equally suitable for aluminium. 2: How do you mount ...
by BasilF
Wed Nov 06, 2019 8:33 am
Forum: Project bikes
Topic: The Everlasting Lozenge.
Replies: 29
Views: 6972
Flag: Great Britain

Re: The Everlasting Lozenge.

Or if you don't fancy making any more could you post a tutorial on the panel beating stages to get the lozenge shape? I'm desperate enough to try and make one as the two I had to fit to my B50 have turned out to be rusty wrecks and Burton bike bits don't have any new ones.

Basil
by BasilF
Sun Nov 03, 2019 7:12 pm
Forum: Project bikes
Topic: My B50SS
Replies: 40
Views: 8177
Flag: Great Britain

Re: My B50SS

Box revised so electronic ignition is on it's own heat sink. <214
Boxrevised2.jpg
Boxrevised1.jpg
by BasilF
Wed Oct 30, 2019 6:12 pm
Forum: Project bikes
Topic: My B50SS
Replies: 40
Views: 8177
Flag: Great Britain

Re: My B50SS

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 t...
by BasilF
Sat Oct 12, 2019 9:11 am
Forum: Project bikes
Topic: My B50SS
Replies: 40
Views: 8177
Flag: Great Britain

Re: My B50SS

If it breaks in spite of the extra stay then I'll make a short one.
by BasilF
Sat Oct 12, 2019 7:23 am
Forum: Project bikes
Topic: My B50SS
Replies: 40
Views: 8177
Flag: Great Britain

Re: My B50SS

IMG_20191011_171352.jpg
Starting to look more colourful.
by BasilF
Mon Oct 07, 2019 12:53 pm
Forum: Project bikes
Topic: My B50SS
Replies: 40
Views: 8177
Flag: Great Britain

Re: My B50SS

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.
by BasilF
Sat Oct 05, 2019 11:25 am
Forum: Parts & Bikes wanted
Topic: OIF T25T/B25 oil feed from rear of frame?
Replies: 6
Views: 1514
Flag: Great Britain

Re: OIF T25T/B25 oil feed from rear of frame?

Got this wrong. Original thread is 3/8 UNF. I drilled and tapped mine 1/4 BSP ages ago and forgot. There is easily enough meat to open it out to this size and it gives a big choice of fittings.
by BasilF
Sun Sep 29, 2019 10:18 am
Forum: Parts & Bikes wanted
Topic: OIF T25T/B25 oil feed from rear of frame?
Replies: 6
Views: 1514
Flag: Great Britain

Re: OIF T25T/B25 oil feed from rear of frame?

IMG_20190929_101254.jpg
Fitting
This is what it looks like. Will do better job of soldering mesh next time. Mesh as bought was lawyered to stay shiney. Needed some paint stripper and solvent before it would solder.
by BasilF
Sat Sep 28, 2019 8:25 am
Forum: Parts & Bikes wanted
Topic: OIF T25T/B25 oil feed from rear of frame?
Replies: 6
Views: 1514
Flag: Great Britain

Re: OIF T25T/B25 oil feed from rear of frame?

https://flowtechnologyuk.com/category/section-9-adaptors-fittings/air-pro-hose-tails/zinc-plated-steel-straights-air-pro/bspp-male-x-imperial-hose-tail Frame thread seems to be 1/4 BSP so a 1/4 BSP parallel hose tail will do the job. I've soldered some brass mesh to one to provide a bit of course fi...
by BasilF
Wed Aug 28, 2019 8:13 am
Forum: Project bikes
Topic: My B50SS
Replies: 40
Views: 8177
Flag: Great Britain

Re: My B50SS

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.
by BasilF
Wed Aug 28, 2019 8:11 am
Forum: Project bikes
Topic: My B50SS
Replies: 40
Views: 8177
Flag: Great Britain

Re: My B50SS

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 ...
by BasilF
Sat Aug 17, 2019 6:34 pm
Forum: Project bikes
Topic: My B50SS
Replies: 40
Views: 8177
Flag: Great Britain

Re: My B50SS

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 g...
by BasilF
Fri Aug 16, 2019 5:55 pm
Forum: Parts & Bikes wanted
Topic: OIF B25/50 electrics box bolts
Replies: 4
Views: 1053
Flag: Great Britain

Re: OIF B25/50 electrics box bolts

83-2211, the top headlight mounting bush does the job.
by BasilF
Wed Jun 19, 2019 3:16 pm
Forum: Tech
Topic: 8inch front brake
Replies: 16
Views: 3789
Flag: Great Britain

Re: 8inch front brake

Possibly, but not me. Both bikes were bought unrestored and those were the parts from them. Could have just been the chaos at BSA in 1973.
by BasilF
Wed Jun 19, 2019 2:05 pm
Forum: Tech
Topic: 8inch front brake
Replies: 16
Views: 3789
Flag: Great Britain

Re: 8inch front brake

Brake-arms1.jpg Found the problem. The short armed cams have the armes mounted on the cams at an angle which puts the arms at right angles to the cable when the brake is on. The long armed cams have the arm set at about 90 degrees to the cam face and are not even a very good pair. I can make the lo...
by BasilF
Tue Jun 18, 2019 6:47 pm
Forum: Tech
Topic: 8inch front brake
Replies: 16
Views: 3789
Flag: Great Britain

Re: 8inch front brake

The snail cam adjusters don't affect where the arms sit when the brake is off. The brake arms can only be fitted to one side (or they will stick up not down). I've found the other brake which has the smaller brake levers. When reasembled, everything is at the right angle. I'm going to dismantle the ...
by BasilF
Tue Jun 18, 2019 2:51 pm
Forum: Tech
Topic: 8inch front brake
Replies: 16
Views: 3789
Flag: Great Britain

8inch front brake

8inchbrake.jpg I've a problem with the front brake. When the brake is off and the cable is slack the brake arms 26 and 33 should sit angled out slightly as shown in the diagram. The tappets 22 should sit with their heads on the backplate and their ends just in contact witht the brake arm cams. On m...
by BasilF
Mon Feb 18, 2019 8:19 am
Forum: Tech
Topic: Electric Start
Replies: 631
Views: 128197
Flag: Great Britain

Re: Electric Start

One of these batteries made a big difference to starting on my microlight. Much more grunt from the same size of battery and lighter too. http://bikeaholics.co.uk/magento/index.php/batteries/lithium-batteries/lithium-best-price-motorcycle-battery-yb12-fp-jmt-yb12c-a-12n12a-4a-1.html#product_tabs_pro...
by BasilF
Sun Feb 03, 2019 7:39 pm
Forum: Tech
Topic: Prop stand
Replies: 13
Views: 2655
Flag: Great Britain

Re: Prop stand

Hook
11.jpg
11.jpg (40.77 KiB) Viewed 2604 times
by BasilF
Sun Feb 03, 2019 7:08 am
Forum: Tech
Topic: Prop stand
Replies: 13
Views: 2655
Flag: Great Britain

Re: Prop stand

IMG_20180919_151550.jpg
IMG_20180919_151550.jpg (35.96 KiB) Viewed 2644 times
. Both mine have harching.
by BasilF
Fri Feb 01, 2019 11:03 am
Forum: Tech
Topic: b50 seat
Replies: 4
Views: 1236
Flag: Great Britain

Re: b50 seat

try here and here , I'm sure there are some dimensions somewhere, if you find them please post a link..... This may be what you are after, (Drawing from Brad) The post from Brad is about shortening the back to make a Motocross style seat. European tank needs the front shortening and I believe they ...
by BasilF
Sat Nov 24, 2018 12:09 am
Forum: Project bikes
Topic: My B50SS
Replies: 40
Views: 8177
Flag: Great Britain

Re: My B50SS

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.
by BasilF
Fri Nov 23, 2018 7:04 pm
Forum: Project bikes
Topic: My B50SS
Replies: 40
Views: 8177
Flag: Great Britain

Re: My B50SS

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 c...
by BasilF
Sat Sep 22, 2018 6:37 pm
Forum: Project bikes
Topic: My B50SS
Replies: 40
Views: 8177
Flag: Great Britain

Re: My B50SS

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
by BasilF
Sat Sep 22, 2018 9:07 am
Forum: Tech
Topic: Painting questions
Replies: 1
Views: 916
Flag: Great Britain

Painting questions

I'm getting close to painting all the black bits and have some questions I would like help with. 1. How to strip paint from frame. Had a spectacular failure with Nitromoors. It didn't shift paint at all. Have used electrostripping for most small bits which has worked well (except when you accidental...
by BasilF
Fri Sep 21, 2018 11:06 pm
Forum: Electrics
Topic: Tidy Electrics Box Wiring
Replies: 6
Views: 4826
Flag: Great Britain

Re: Tidy Electrics Box Wiring

Hoope you get a few minutes soon. Some of us are waiting expectantly!!!
IMG_20180921_103239.jpg
by BasilF
Fri Sep 21, 2018 11:02 pm
Forum: Project bikes
Topic: My B50SS
Replies: 40
Views: 8177
Flag: Great Britain

Re: My B50SS

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_2018092...
by BasilF
Tue Sep 18, 2018 5:56 pm
Forum: Project bikes
Topic: My B50SS
Replies: 40
Views: 8177
Flag: Great Britain

Re: My B50SS

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_201...
by BasilF
Mon Aug 13, 2018 4:57 pm
Forum: Tech
Topic: Hub paint and wheel rims.
Replies: 1
Views: 911
Flag: Great Britain

Hub paint and wheel rims.

I'm rebuilding my B50SS wheels and have some questions. 1: I'll probably use RAL 9006 two pack on the hubs and brake backplates. Should I use an etch primer to help it stick to the alluminium or will an ordinary 2 pack primer do? 2: The standard rims are 18inch WM2. Could I fit WM3 without any chain...