Search found 904 matches

by BSA_WM20
Wed Jun 03, 2020 9:52 am
Forum: Tech
Topic: B40 triple clamp material
Replies: 13
Views: 526
Flag: Australia

Re: B40 triple clamp material

Well to keep it on / off topic.
THe A65L did around 150,000 miles without any problems from the wire mounted headlight.
The B 50 T used to eat a set every year or so .
by BSA_WM20
Sat May 16, 2020 9:09 am
Forum: Tech
Topic: Blown main fuse
Replies: 4
Views: 267
Flag: Australia

Re: Blown main fuse

I had this happen regularly on my B 50 T Seemed to be quite random . Ended up being the steel side cover having cut through the gromets managed to touch the neg terminal on the battery and poof, no more fuse . Took a long while to find it. The A 65 L had one of those idiot in line stop switches on t...
by BSA_WM20
Fri May 08, 2020 7:55 am
Forum: Tech
Topic: Electronic box mounts
Replies: 1
Views: 317
Flag: Australia

Re: Electronic box mounts

Depending upon the price I will take a UK prepaid box full which from memory is about 1kg
Otherwise the freight gets silly
by BSA_WM20
Tue May 05, 2020 9:54 am
Forum: Off topic
Topic: Any part of the old BSA Company still around?
Replies: 3
Views: 653
Flag: Australia

Re: Any part of the old BSA Company still around?

BSA had a lot of subsiduries that traded under their own name Churchill Engineering is still there as is Bertley Engineering. 'Jessops & Savelle steel both got sucked into the British Steel mergers under the Thatcher government and are now owned by one of the Indian conglomerates, can't remember the...
by BSA_WM20
Mon Apr 27, 2020 4:20 pm
Forum: Tech
Topic: 1969 oil tanks diferences
Replies: 6
Views: 509
Flag: Australia

Re: 1969 oil tanks diferences

Kommando is once again correct.
The long neck will dig into your thigh if you like to ride with your knees in ( the proper way )
I rode a B40 GA for 15 years that has the long neck on it and had a perminent bruise from the filler cap
by BSA_WM20
Tue Apr 07, 2020 10:47 am
Forum: Project bikes
Topic: Converting a B50 to wet sump. (aka Boris Johnson)
Replies: 102
Views: 5705
Flag: Australia

Re: Converting a B50 to wet sump.

BSA gave up making wet sumps around 1936 from memory which the release of the new B group. They did this for very good reasons What do you imagine their reasoning was? Viscous drag for starters both on start up and while running. Remember your car has an external flywheel behind the crank & a small...
by BSA_WM20
Mon Apr 06, 2020 11:17 am
Forum: Project bikes
Topic: Converting a B50 to wet sump. (aka Boris Johnson)
Replies: 102
Views: 5705
Flag: Australia

Re: Converting a B50 to wet sump.

BSA gave up making wet sumps around 1936 from memory which the release of the new B group.
They did this for very good reasons
by BSA_WM20
Fri Apr 03, 2020 5:54 am
Forum: Parts & Bikes wanted
Topic: Brad Jones looking for B25T
Replies: 4
Views: 501
Flag: Australia

Re: Brad Jones looking for B25T

Wasn't thinking.
Should have deleted it & added it as jpeg so it can't be vacuumed up by web crawlers.
I wondered why we had not seen nor heard from him for a long while
by BSA_WM20
Thu Apr 02, 2020 3:37 am
Forum: Parts & Bikes wanted
Topic: Brad Jones looking for B25T
Replies: 4
Views: 501
Flag: Australia

Brad Jones looking for B25T

I don't normally cross post but Brad is having troubles loggin in here Looking for a complete oif B25 engine, preferably stamped up as a 'T' version. Could also be interested in a part complete engine depending on what was missing. Due to not being able to log into B50.org, if anyone can help I can ...
by BSA_WM20
Tue Mar 24, 2020 12:28 pm
Forum: Tech
Topic: Best Electronic Ignition
Replies: 23
Views: 2146
Flag: Australia

Re: Best Electronic Ignition

Trevor, can you post a link the Podtronics ignitions please. Paul. Now I'm curious. Why the dislike of the Electrex? You're the second or third person I've seen try to steer someone away from the Electrex unit. Why marry yourself to another magnetic pick up (assuming that's the route) wedged into t...
by BSA_WM20
Tue Mar 24, 2020 12:18 pm
Forum: Tech
Topic: Best Electronic Ignition
Replies: 23
Views: 2146
Flag: Australia

Re: Best Electronic Ignition

Trevor, can you post a link the Podtronics ignitions please. Paul. Now I'm curious. Why the dislike of the Electrex? You're the second or third person I've seen try to steer someone away from the Electrex unit. Why marry yourself to another magnetic pick up (assuming that's the route) wedged into t...
by BSA_WM20
Tue Mar 24, 2020 12:10 pm
Forum: Tech
Topic: Best Electronic Ignition
Replies: 23
Views: 2146
Flag: Australia

Re: Best Electronic Ignition

beesa71 wrote:
Mon Mar 23, 2020 10:27 am
Trevor, can you post a link the Podtronics ignitions please.

Paul.
http://www.jeperformance.biz/runintro12.htm

Actually it was Run tronics .
Had a brain fart yesterday
by BSA_WM20
Mon Mar 23, 2020 1:45 am
Forum: Tech
Topic: Best Electronic Ignition
Replies: 23
Views: 2146
Flag: Australia

Re: Best Electronic Ignition

The local VMX crowd are all running Runtronics ignitions which come in single & twin plug variants. Not a simple plug & play as they will require some setting up.17 hours run time from 5 C cells that will happily fit inside the primary chain case where the stator used to go , you will have to make u...
by BSA_WM20
Thu Mar 19, 2020 11:32 pm
Forum: Tech
Topic: B25 Oil circulation mod, why wouldn't this work?
Replies: 8
Views: 1101
Flag: Australia

Re: B25 Oil circulation mod, why wouldn't this work?

minetymenace wrote:
Thu Mar 19, 2020 5:04 pm
Good point, would it foam though?
IT depends upon the oil
Air cooled engine oils have more anti-foming agents in them than car oils.
Remembering that the scavenge is pretty foamy in the first place.
by BSA_WM20
Sun Mar 15, 2020 2:55 pm
Forum: Tech
Topic: TR5mx Carb Settings
Replies: 8
Views: 969
Flag: Australia

Re: TR5mx Carb Settings

Probably the best explaination of concentrics on the web
http://www.jba.bc.ca/Bushmans%20Carb%20Tuning.html
by BSA_WM20
Fri Mar 13, 2020 1:37 pm
Forum: Tech
Topic: B40 Clutch Pressure Plate
Replies: 9
Views: 1117
Flag: Australia

Re: B40 Clutch Pressure Plate

Yes that is how the SRM unit works.
BSA Bill used to do a similar unit for 6 spring pressure plates with no thread.
I have fitted a few & they work a treat.
Of course on the preunit box you have adjustment at the pushrod where as there is none on the unit boxes.
by BSA_WM20
Thu Mar 12, 2020 9:51 am
Forum: Tech
Topic: B40 Clutch Pressure Plate
Replies: 9
Views: 1117
Flag: Australia

Re: B40 Clutch Pressure Plate

...assuming the adjuster thread is somewhere close.... You must have an original plate somewhere, does that lift square? Does not matter . I have fitted a lot of them where they did not fit With that plate the only important thing would be to machine the inside of the plate true to the outer circum...
by BSA_WM20
Wed Mar 11, 2020 12:05 pm
Forum: Tech
Topic: B40 Clutch Pressure Plate
Replies: 9
Views: 1117
Flag: Australia

Re: B40 Clutch Pressure Plate

You might like to get a radial roller bearing + lifting mushroom from SRM ( part of the Devimead clutch )
Install it in your new pressure plate so the plate "wants" to lift square from the get go.
by BSA_WM20
Mon Mar 09, 2020 1:43 pm
Forum: Tech
Topic: Maybe Off Topic
Replies: 3
Views: 792
Flag: Australia

Re: Maybe Off Topic

The trick is how you support the frame so you can get a good shock loading onto the fork legs. I put a length of hard wood under the lower clamp plate if the engine is in the frame If not then I sit it on my offset vice. Some times I have needed to add some heat. This is on top of what Kommando post...
by BSA_WM20
Thu Feb 20, 2020 5:20 am
Forum: Tech
Topic: Mystery problem and BP is to blame!
Replies: 12
Views: 1855
Flag: Australia

Re: Mystery problem and BP is to blame!

The dye that goes in the fuel does not evaporate. The fuel does so as it gets staler it gets darker. It is designed to do this so those who are in the know can see it is ( or has ) gone off. Some times it gets pumped out & sent back for reprocessing other times the servo will do a discount till it i...
by BSA_WM20
Mon Feb 03, 2020 6:29 am
Forum: Tech
Topic: 1974 Gas tank on Ebay
Replies: 15
Views: 1593
Flag: Australia

Re: 1974 Gas tank on Ebay

kommando wrote:
Sun Feb 02, 2020 4:25 pm
Royal Choppers is one of the better Indian sellers who does not sell the rejects.
Would not go that far.
Know of a fair bit of duff stuff that has come from them.
However they do stand behind what the see.
So if it is wrong / badly damages / defective they will happily send a replacement
by BSA_WM20
Sat Feb 01, 2020 10:57 am
Forum: Tech
Topic: 1974 Gas tank on Ebay
Replies: 15
Views: 1593
Flag: Australia

Re: 1974 Gas tank on Ebay

Not in that condition
But when you don't know you look up "triumph tank" on ebay and get 22,000 tanks for sale around $ 500
So 500 is what it must be worth.
by BSA_WM20
Fri Jan 24, 2020 1:58 pm
Forum: Tech
Topic: B40/44 Regina primary chain issues...
Replies: 4
Views: 868
Flag: Australia

Re: B40/44 Regina primary chain issues...

the new chain has rollers that a pooteenth bigger diameter so t runs tight
by BSA_WM20
Thu Jan 23, 2020 6:46 am
Forum: Tech
Topic: B44 Primary Breather Pipe
Replies: 8
Views: 1433
Flag: Australia

Re: B44 Primary Breather Pipe

Yep, No oil seal works really well. Don't forget to make a spacer if you remove it. Then a 1/4" hole is drilled at the correct oil level for the primary chain case. Once you have done this you need to be careful what engine oil you use. Definately not synthetic anything. Run the breather tube up the...
by BSA_WM20
Tue Jan 21, 2020 8:16 am
Forum: Tech
Topic: B44 Electrics Question
Replies: 12
Views: 1533
Flag: Australia

Re: B44 Electrics Question

I find 8's way too soft / cold fr modern fuel.
Fine if you have a stash of 1975 petrol.
I use 6's for short runs round town & 7's for longer rides.
by BSA_WM20
Mon Jan 20, 2020 3:03 am
Forum: Tech
Topic: B44 Electrics Question
Replies: 12
Views: 1533
Flag: Australia

Re: B44 Electrics Question

It seems my old memory is thinking that if you have the Energy Transfer Ignition, Then you also have a special Auto Advance unit. They used it to help ensure that the timing would line up with the max magnet/ coil output and had very limited advance. I would replace everything with: (1) AAU, stator...
by BSA_WM20
Sun Jan 19, 2020 7:43 am
Forum: Tech
Topic: B44 Electrics Question
Replies: 12
Views: 1533
Flag: Australia

Re: B44 Electrics Question

Yep,
The Mystery box does all that.
Try to get a reasonable air flow around it.
by BSA_WM20
Thu Jan 16, 2020 9:12 am
Forum: Tech
Topic: B44 Wiring/ Earth
Replies: 16
Views: 1837
Flag: Australia

Re: B44 Wiring/ Earth

Yes,
Some auto shops carry them
but I would rather pay $ 4.70 Aus than £ 4.99.
Should find a better range at an electronic componant shop.
by BSA_WM20
Wed Jan 15, 2020 2:16 am
Forum: Tech
Topic: B44 Wiring/ Earth
Replies: 16
Views: 1837
Flag: Australia

Re: B44 Wiring/ Earth

Hi Trevor I've got relays for dip and main beam on my Victor squeezed inside the headlamp shell. They're a bit chunky though, probably about 2cm cubed plus terminals. Are yours any smaller physically? I know you're the other side of the world, but where do you source yours from? Cheers Ian We get m...
by BSA_WM20
Tue Jan 14, 2020 8:59 am
Forum: Tech
Topic: B44 Wiring/ Earth
Replies: 16
Views: 1837
Flag: Australia

Re: B44 Wiring/ Earth

We go the other way and do a total upgrade when rewiring B 44's unless it is a historically significant motorcycle where authenticity is important. This starts with a 4 circuit fuse box that takes modern blade fuses Thus the parts that usually give you grief ( stop / tail and headlamp ) can be exclu...
by BSA_WM20
Thu Jan 02, 2020 10:05 am
Forum: Tech
Topic: B40 in OIF frame issues
Replies: 35
Views: 4286
Flag: Australia

Re: B40 in OIF frame issues

A bit off topic but all forward control rear wheel drive vans are the same, you lift the body off. The monocoupe Rolls Royces are also the same It is a very common practice. As for listening to the elders always worth while doing. There is very little we do that they have not done before and the bes...
by BSA_WM20
Tue Dec 24, 2019 4:08 am
Forum: Tech
Topic: B40 in OIF frame issues
Replies: 35
Views: 4286
Flag: Australia

Re: B40 in OIF frame issues

Convoluted rubber tubing should be able to span that gap. The stuff to use is water pump suction tube You can get it at most irrigation suppliers and a lot of tool shops. Comes in a lot of interesting colours. Other than that you are looking for "Snorkel tube" however the bulk of t will be for cars ...
by BSA_WM20
Sat Dec 14, 2019 9:52 am
Forum: Tech
Topic: Works Engine?
Replies: 9
Views: 1555
Flag: Australia

Re: Works Engine?

:laugh spolling woz nevr my stronguest arset! :ban But what about that engine number? Most weird numbers can be explained away by lone armature engine builders, but I am intrigued by this. No doubt competition engines had their own numbers, but what about development engines, or ones being used for...
by BSA_WM20
Tue Dec 03, 2019 11:20 pm
Forum: Tech
Topic: B50 7" Headlamp
Replies: 10
Views: 1551
Flag: Australia

Re: B50 7" Headlamp

Mine has the 7 " pancake light .
I am in OZ
And yes BSA specs were different in different markets and always have been right back to the 20's .
I have a 26 & 27 B2 Both are the same but they are substantially different to what the parts book says they should be.
by BSA_WM20
Mon Nov 25, 2019 7:50 am
Forum: Tech
Topic: Connecting Rod Big End bearing too wide? Negative clearance present
Replies: 12
Views: 2087
Flag: Australia

Re: Connecting Rod Big End bearing too wide? Negative clearance present

There was a bunch of pre-unit single big ends around a while back where the radius at the end of the taper was too big which prevented the flywheels being drawn fully onto the taper.

It might be a trick of the angles but the bearing looks to be narrower than the con rod which of course will not work
by BSA_WM20
Tue Nov 19, 2019 4:34 am
Forum: Parts for sale
Topic: Scammer ?
Replies: 2
Views: 1331
Flag: Australia

Scammer ?

Just seen an interesting post on the C10-11-12 forum. One member was looking at purchases from this site Lievremarket.com The images all appear to be taken from different web sites and there is no consistency with the prices, many of which are below wholesale So it would appear to be a scam site bew...
by BSA_WM20
Sun Nov 03, 2019 11:28 am
Forum: Tech
Topic: 1000-Series 2/4-stroke Concentrics
Replies: 102
Views: 17400
Flag: Australia

Re: 1000-Series 2/4-stroke Concentrics

Sales catalogs were prepared well in advance so there are differences between what is shown and what was in the showroom. Also, taking the Gold Star as an example, the parts manual issued in 1958 seemingly covers all DBDs. However, like for other bikes, I have a very large stack of Bulletins detail...
by BSA_WM20
Tue Oct 15, 2019 8:24 am
Forum: Tech
Topic: Oil use by date
Replies: 13
Views: 2392
Flag: Australia

Re: Oil use by date

The oil itself doesn't wear out, but the additives certainly do. Here's a study that supports the viscosity degradation due to use: https://www.researchgate.net/publication/272748220_Analysis_of_Lubricating_Oil_Deterioration_in_Four-Wheeler . I would not consider that article proof of anything othe...
by BSA_WM20
Sun Oct 13, 2019 4:59 am
Forum: Tech
Topic: Oil use by date
Replies: 13
Views: 2392
Flag: Australia

Re: Oil use by date

Not only does oil not expire, it doesn't wear out. Let me qualify that: multi-grade oils in service will trend towards the lower (Winter) viscosity of their grade as they're used, e.g., 20W50 will eventually become 20 weight because the long chains that respond to temperature get sliced up and even...
by BSA_WM20
Sun Oct 13, 2019 4:42 am
Forum: Tech
Topic: B25 oil filter on B50
Replies: 4
Views: 1225
Flag: Australia

Re: B25 oil filter on B50

And there were 2 filters fitted to the WD B40's , one of which from memory was the same unit fitted to the B25's. These are messy as they have a filter fitted inside the outer cover and in their infinite stupidity BSA fitted them horizontal so there is no way to take them off without getting oil eve...