Search found 360 matches

by SteveS
Sat Jul 04, 2020 8:10 am
Forum: Tech
Topic: T 140 tank on B25/T25
Replies: 6
Views: 232
Flag: England

Re: T 140 tank on B25/T25

Hi Ian A previous contributor on this site did what you are considering - see here . There is a fair bit of cutting an re-modelling required to clear the oil filler location. Also the tank is quite a bit longer so sits a bit too far back in my opinion. I'm planning on doing something similar on anot...
by SteveS
Wed Jun 24, 2020 8:45 am
Forum: Tales Of Woe
Topic: Registering an historic BSA
Replies: 3
Views: 108
Flag: England

Re: Registering an historic BSA

Hi Basil

I will be interested in the responses you get as I have just sent off an application to the DVLA with the same docs as you describe for my A65.

I successfully completed applications for my B50T in Nov 2018 and more recently my A75 in Jan 2020.
by SteveS
Tue Jun 23, 2020 7:33 am
Forum: Project bikes
Topic: Typhoon BX60V
Replies: 90
Views: 26281
Flag: England

Re: Typhoon BX60V

Hi eebtr7 That's interesting about bikes getting damaged at sea and returning to the UK. I've not heard that before, although I have read about unsold stock coming back to the UK - see below. The salt water damage may explain why some Y suffix bikes have been so extensively updated with later 69 par...
by SteveS
Fri Jun 19, 2020 5:30 pm
Forum: Project bikes
Topic: Typhoon BX60V
Replies: 90
Views: 26281
Flag: England

Re: Typhoon BX60V

. I've got no further with my main project but atleast the Lightning is back together, just waiting for the BSAOC Vehicle Report so that I can get the bike registered with the DVLA. . A65 Lightning 1967 Right Side View.JPG . P.S. 20/06/2020 Received info back from BSAOC, great service as usual. :th...
by SteveS
Thu Jun 18, 2020 4:02 pm
Forum: Parts for sale
Topic: B50MX CRANKCASES
Replies: 1
Views: 223
Flag: England

Re: B50MX CRANKCASES

by SteveS
Tue Jun 16, 2020 7:20 pm
Forum: Tech
Topic: B44 engineering item and a Piston recommendations?
Replies: 6
Views: 487
Flag: England

Re: B44 engineering item and a Piston recommendations?

Hi Craig Depends how bad the thread is. You could try a 'thread restoring file', plenty on ebay etc. just need to check the thread you have and count the tpi (teeth per inch) so that you purchase the appropriate file. Another way may be to turn a knackered fork oil seal holder into a die by cutting ...
by SteveS
Sun Jun 14, 2020 9:54 am
Forum: Tech
Topic: A kicker that actually folds away?
Replies: 23
Views: 1284
Flag: England

Re: A kicker that actually folds away?

Hi crankbuster

Which kick start lever is in your clip? It looks a bit like the Triumph T160 type
by SteveS
Sat Jun 13, 2020 9:49 am
Forum: Tech
Topic: B44 engineering item and a Piston recommendations?
Replies: 6
Views: 487
Flag: England

Re: B44 engineering item and a Piston recommendations?

Hi Ian

Thanks for providing that link to the thread that Stan contributed to, as I was searching for it the other day and couldn't find it :thumb <1011
by SteveS
Sun Jun 07, 2020 8:53 am
Forum: Project bikes
Topic: LOBE 2 20-21
Replies: 23
Views: 1265
Flag: England

Re: LOBE 2 20-21

Hi Beat

According to b50.org under 'Frame Codes' CE is March 1971 and apparently
Swiss men voted to give women the vote and allow them to hold office.
by SteveS
Tue Jun 02, 2020 11:21 am
Forum: Tech
Topic: B40 triple clamp material
Replies: 13
Views: 530
Flag: England

Re: B40 triple clamp material

Are they the ones with the built in cracks? <216
by SteveS
Sun May 31, 2020 6:41 am
Forum: Tech
Topic: B50 Rocker box substitute
Replies: 6
Views: 291
Flag: England

Re: B50 Rocker box substitute

. Hi Neil I can understand your need for the experiment, as genuine B50 rocker box castings are thin on the ground. Thanks for letting us know, it will help others in the future. I am wondering though, if the rocket shafts on the C15 are in exactly the same location as the B50? Yes they are :thumb ...
by SteveS
Tue May 26, 2020 2:57 pm
Forum: Tech
Topic: High ratio B50 rocker arms
Replies: 17
Views: 764
Flag: England

Re: High ratio B50 rocker arms

Hi Tom

Thanks for posting the details about E&V's rockers, I wasn't aware he was making them.

I was thinking the same as you about Stan
by SteveS
Tue May 26, 2020 6:57 am
Forum: Tech
Topic: High ratio B50 rocker arms
Replies: 17
Views: 764
Flag: England

Re: High ratio B50 rocker arms

Hi Momu That "bloke" is Stan Millard - HPStan, very well known and respected in the Flat Track community over in the US. Did you see Stan's high port B50 head? May help with your head plans - see here . If you get time it's worth checking out Stan's posts. If you use the advanced search and put his ...
by SteveS
Mon May 25, 2020 8:29 am
Forum: Tech
Topic: High ratio B50 rocker arms
Replies: 17
Views: 764
Flag: England

Re: High ratio B50 rocker arms

Hi Momo Some of the guys have done more than just theorise, but I don't think you will get anything off the shelf. If you check Stan Millard's Photobucket page here there are a few pics of the mods he did to B25 rockers to improve the ratio. I'm fairly certain he used the B25 rockerbox (eccentric ad...
by SteveS
Sat May 23, 2020 12:26 pm
Forum: Tech
Topic: Engine stand
Replies: 8
Views: 484
Flag: England

Re: Engine stand

Hi Momu

I've found the stand very useful; rebuilt several unit single motors over the years using it. :thumb

I guess a stand that rotates
like a spit
could be useful although I can't think of an assembly sequence that would be better in a rotated position?
by SteveS
Sat May 23, 2020 7:34 am
Forum: Tech
Topic: Engine stand
Replies: 8
Views: 484
Flag: England

Re: Engine stand

. Hi I found the type that locates on the front and bottom engine mount very adaptable, plus the one below has the benefit of being able to rotate. . Engine Stand.JPG . If you need any dimensions let me know. . I believe some people have used part of a damaged frame to form the main tube and then w...
by SteveS
Mon May 18, 2020 11:52 am
Forum: Parts for sale
Topic: B25R ?
Replies: 10
Views: 1438
Flag: England

Re: B25R ?

. Hi Phil There appear to be a few references to B25R on the internet linked to products to suit that model. I have to admit I am not aware of the model. However I have checked Rupert Ratio's book, Unit Single Manual, Volume 3, Lesser known Models. On page 62, Chapter 11, Special Order Models, the ...
by SteveS
Thu May 14, 2020 2:13 pm
Forum: Project bikes
Topic: B25 SS CV19 project
Replies: 48
Views: 2017
Flag: England

Re: B25 SS CV19 project

Hi Some of the big tanks had mounts fitted for a tank brace / strap as standard(?) - see discussuion here . This discussion got me checking the nos seat I bought last month, turns out it's a short one. So I can confirm the other observations i.e. seat is cut off at front, 13mm from front edge of mou...
by SteveS
Tue May 12, 2020 7:38 am
Forum: Tech
Topic: 1972 B25SS FRONT ENGINE MOUNT
Replies: 10
Views: 499
Flag: England

Re: 1972 B25SS FRONT ENGINE MOUNT

I stand corrected, parts list shows the distance piece :shock: I've checked all my oif bikes and some have the spacer and others do not. Looking carefully where there is no spacer the engine mount has been squashed inwards by previous owners (?). The frame mount is only 1/8" thick so if the front en...
by SteveS
Mon May 11, 2020 3:14 pm
Forum: Tech
Topic: 1972 B25SS FRONT ENGINE MOUNT
Replies: 10
Views: 499
Flag: England

Re: 1972 B25SS FRONT ENGINE MOUNT

Correct, no spacer required

THIS IS INCORRECT - please ignore and see comments below
by SteveS
Sun May 03, 2020 7:44 am
Forum: Tech
Topic: B50MX cam in a B25 and Big bore ideas.
Replies: 10
Views: 758
Flag: England

Re: B50MX cam in a B25 and Big bore ideas.

Hi Remember the oif 71 B25T/SS crankcases are essentially the same casting as the B50 but with different machining carried out. So it is possible to convert a set of B25 crankcases to B50, although there is a fair amount of work required. The crankcase throat of a oif b25 has enough meat to take a s...
by SteveS
Fri May 01, 2020 12:45 pm
Forum: Parts & Bikes wanted
Topic: Wanted B50 rocker cover.
Replies: 4
Views: 341
Flag: England

Re: Wanted B50 rocker cover.

The B50 rocker box is unique to the B50. However some of the guts are interchangeable. See here
by SteveS
Thu Apr 23, 2020 5:27 pm
Forum: Off topic
Topic: Rare thorttle twist grip?
Replies: 4
Views: 360
Flag: England

Re: Rare thorttle twist grip?

.
The Indians have finally got round to making a copy of the locking Feridax throttle - see here. Not seen any reports on forums about the quality but the price (£14GBP) looks good
by SteveS
Wed Apr 22, 2020 8:19 am
Forum: Tech
Topic: T25 Tappet Orientation
Replies: 6
Views: 567
Flag: England

Re: T25 Tappet Orientation

.
The two oil holes in the cam follower stem align with the thicker end of the foot, so when fitted the oil-ways will face to the rear.

I don't know if there is an engineering convention that dictates this orientation?
by SteveS
Mon Apr 20, 2020 12:47 pm
Forum: Tech
Topic: B25ss fork damper unit retaing bolt washers
Replies: 9
Views: 603
Flag: England

Re: B25ss fork damper unit retaing bolt washers

Hi Malc

Thanks, simplest solutions are the best ones :thumb
by SteveS
Mon Apr 20, 2020 7:38 am
Forum: Tech
Topic: B25ss fork damper unit retaing bolt washers
Replies: 9
Views: 603
Flag: England

Re: B25ss fork damper unit retaing bolt washers

. I think the part number is 97-4004, Washer - damper tube (Dowty) as shown in the parts book, number 32 in B50 72 parts list. You can find them on ebay etc. Also someone like Goodridge would stock them. If you can't find 'Dowty' try 'Stat-O-Seal'. If we knew the exact spec. i.e. id, od and thickne...
by SteveS
Sun Apr 12, 2020 7:33 am
Forum: Project bikes
Topic: Starfire 441
Replies: 91
Views: 13837
Flag: England

Re: Starfire 441

Yes, I can see this one, worth the wait :thumb
by SteveS
Sun Mar 29, 2020 9:57 am
Forum: Off topic
Topic: Star
Replies: 265
Views: 54475
Flag: England

Re: Star

Hi Beat You never cease to amaze me with your ideas and innovations :thumb As Plato said 'Necessity is the mother of invention'. Regarding the 'the wingwheel', it will be interesting to see how it performs with hard use. You may find you may have to adjust the angle of the vanes so that it acts more...
by SteveS
Sat Mar 28, 2020 8:25 pm
Forum: Tech
Topic: B44 Speedo
Replies: 11
Views: 1074
Flag: England

Re: B44 Speedo

Hi

The B50SS used a 2:1 ratio speedo drive gearbox (BG5330/24), but as stated above the B50T was supplied with a 21/10 ratio speedo drive gearbox (BG5330/104) to compensate for the slightly larger diameter of the Dunlop Trials Universal tyres fitted as standard to the 'T' model.
by SteveS
Fri Mar 27, 2020 8:28 am
Forum: Tech
Topic: B44 Speedo
Replies: 11
Views: 1074
Flag: England

Re: B44 Speedo

So, it’s likely to be one of three things: Speedo head Cable Speedo drive at rear wheel Speedo head Try putting a bit in a drill and running the speedo with it. Or instead of a tight-fitting drill bit you could use a small thread tap, as the 1/8" square end is an ideal size to drive a speedo/tacho. ...
by SteveS
Fri Mar 13, 2020 6:01 pm
Forum: Tech
Topic: B44 VS 69 Speedo
Replies: 7
Views: 1048
Flag: England

Re: B44 VS 69 Speedo

Hi Claus

Worth taking a look at these two threads:

This one may help you identify the correct relationship between speedo head and the speedo drive

This This one may help with regard to aftermarket choices
by SteveS
Tue Mar 10, 2020 5:50 pm
Forum: Project bikes
Topic: B44 on the cheap!
Replies: 34
Views: 4148
Flag: England

Re: B44 on the cheap!

Hi Tom

Looks great :thumb

Did it come in on budget?
by SteveS
Wed Mar 04, 2020 8:17 am
Forum: Tech
Topic: Rocker Box contents - interchangeability?
Replies: 6
Views: 1011
Flag: England

Re: Rocker Box contents - interchangeability?

Thanks Chris, taken note of your comment about the lifter pad, although part number didn't change(?) I checked my parts books (which I should have done to start with) and the parts numbers for the internal components match up. The C15 seems to use an additional 1/2" thrust washer somewhere unless th...
by SteveS
Mon Mar 02, 2020 9:35 pm
Forum: Tech
Topic: Rocker Box contents - interchangeability?
Replies: 6
Views: 1011
Flag: England

Rocker Box contents - interchangeability?

Hi

B50 rocker boxes are a bit thin on the ground. I've finally got hold of a good B50 rockerbox casting but don't have the innards. My question is how much of the contents of a C15 or other unit single rocker box (barring the B25 with eccentric rocker spindles) would fit the B50 rocker box?
by SteveS
Wed Feb 19, 2020 2:26 pm
Forum: Parts & Bikes wanted
Topic: 1971 BSA B25ss Centre Stand Wanted
Replies: 5
Views: 754
Flag: England

Re: 1971 BSA B25ss Centre Stand Wanted

Hi Beezergeezer

See the previous thread here. I think there may be other discussions about the same subject.

Years ago my Dad fitted an early A65 oif centre stand to his T25T with no issues. He retained the side arm although he reworked and shortened it slightly
by SteveS
Sun Feb 09, 2020 1:01 pm
Forum: Books and other info
Topic: Norton Villiers Triumph - Viable proposition, or a house of cards?
Replies: 0
Views: 1897
Flag: England

Norton Villiers Triumph - Viable proposition, or a house of cards?

Some of you will be familiar with Brad Jones previous work including: OIF B25 /B50 Incomplete Guide BSA Motorcycles - The Final Evolution From the inside - BSA / Triumph's Umberslade Hall Research Establishment Revealed Brad has now published another book entitled: Norton Villiers Triumph - Viable p...
by SteveS
Fri Feb 07, 2020 6:07 pm
Forum: Parts for sale
Topic: Hi Violet Tank and Mudguards to Trade
Replies: 6
Views: 921
Flag: England

Re: Hi Violet Tank and Mudguards to Trade

That seems like a good deal. Wish I had the parts to trade
by SteveS
Thu Jan 30, 2020 6:11 pm
Forum: Off topic
Topic: Star
Replies: 265
Views: 54475
Flag: England

Re: Star

Hey Beat

Not sure if you were being serious but it made me laugh! :lol:
the new piston. in 90 mm bore (it is much shorter because I had no money to buy a long one)
by SteveS
Wed Jan 29, 2020 9:54 am
Forum: Tech
Topic: grey color
Replies: 6
Views: 969
Flag: England

Re: grey color

Apologies, misread the post :oops: . The RAL color I quoted is for the frame components. For future reference I'll edit my post to make it clear.
by SteveS
Tue Jan 28, 2020 5:37 pm
Forum: Tech
Topic: grey color
Replies: 6
Views: 969
Flag: England

Re: grey color

Hi

RAL7038 is commonly quoted. (THIS IS THE DOVE GREY FOR THE FRAME COMPONENTS - NOT HUBS)

See topic here