Search found 51 matches

by aminto
Tue May 03, 2016 7:44 am
Forum: Parts for sale
Topic: ELECTRICAL BOX ANTI-VIBRATION PEDESTAL MOUNT
Replies: 6
Views: 803
Flag: Scotland

ELECTRICAL BOX ANTI-VIBRATION PEDESTAL MOUNT

Is your bikes electrical box barely hanging onto the frame? Mine was... ... but three of these mounts and it was as good as new! Then this small highly versatile mount can be used as a fail-safe suspension mount by suspending a load from below and using a suitable washer and lock-nut above. It can a...
by aminto
Sun Aug 05, 2012 3:03 pm
Forum: Tech
Topic: TAIL LIGHT COLOR
Replies: 10
Views: 1509
Flag: Scotland

Re: TAIL LIGHT COLOR

Hello, The tail light on my US import dove grey framed b25ss is dove grey, I know the color to be original for on the tail light is the original dealers sticker complete with year... similarly, the tail light on the US import black framed b50ss is black (again for the reason that a 1971 sticker was ...
by aminto
Sun Aug 05, 2012 2:48 pm
Forum: Tech
Topic: B50 Return Oil Filter
Replies: 50
Views: 6102
Flag: Scotland

Re: B50 Return Oil Filter

"I like Mike"!!! I used his design although I took the even simpler route of routing the oil return pipe directly into a filter unit (EMGO) mounted in the same position as Mr. Mike's and left the rocker supply alone, still feeding the top end. Yes, I realize there is an argument regarding ...
by aminto
Sat Jul 14, 2012 12:16 pm
Forum: Tech
Topic: Speedo drive gearbox
Replies: 4
Views: 578
Flag: Scotland

Re: Speedo drive gearbox

I tried one of the Indian versions listed on Ebay ( because at the time it was cheap, easily obtained, etc. etc., unwisely I believed the risk justified) and it is unusable on a (my) b50 - the internals do not allow contact with the pins on the wheel mounted drive... I then spent a long time looking...
by aminto
Fri Jul 13, 2012 3:22 pm
Forum: Tech
Topic: Speedo drive gearbox
Replies: 4
Views: 578
Flag: Scotland

Re: Speedo drive gearbox

SpeedoDriveGearbox.pdf When my speedo began to malfunction there was an extended period of needle tremor followed by a complete loss of needle movement. I took apart the drive and realised that although the knurled sleeve directly beneath the grease nipple was in good condition (top right diagram),...
by aminto
Mon Jun 11, 2012 1:44 pm
Forum: Tech
Topic: leaking outrigger plate
Replies: 39
Views: 3189
Flag: Scotland

Re: leaking outrigger plate

I am more and more impressed with the innovations derived by beat!!!
Please forgive me by saying that my only problem is your English, which necessitates my thinking even harder about the solution and so obtaining even more insight into the problem....
Thank you beat!
Andrew
by aminto
Sun May 13, 2012 2:54 pm
Forum: Tech
Topic: Pazon Ignition Module Location
Replies: 43
Views: 6284
Flag: Scotland

Re: Pazon Ignition Module Location

Hello, I can only reiterate Roy's comments, for I had the same problems as related in the previous posts with the standard Pazon Sure Fire module. I then spoke directly with Pazon in NZ (as I could see no information about the low crank speed version on their website) and purchased a 'low crank spee...
by aminto
Wed Mar 14, 2012 4:06 pm
Forum: Tech
Topic: B25 head and rocker box identification
Replies: 5
Views: 745
Flag: Scotland

Re: B25 head and rocker box identification

Sidecar, Here is one way to replicate the dove grey paint... This information is for those grey frame owners in the USA wishing to repaint. I took a paint chip (my chainguard extension, the underside had never been exposed to sunlight) to The Home Depot who made up the following: to one US quart (31...
by aminto
Sun Jan 01, 2012 4:28 pm
Forum: Tech
Topic: Simplifying with Pazon
Replies: 24
Views: 4315
Flag: Scotland

Re: Simplifying with Pazon

Gentlemen, May I clarify my former statement, which seems to have muddied the discussion, regarding the 'low crank speed' version of the Pazon Sure-Fire? Following removal of the mechanical points in my b50 I installed a Pazon Sure-Fire ignition system for a British Single/Twin (System number PA1). ...
by aminto
Sun Dec 11, 2011 12:44 pm
Forum: Tech
Topic: Simplifying with Pazon
Replies: 24
Views: 4315
Flag: Scotland

Re: Simplifying with Pazon

...remember to ask for the 'low crank speed' version...
I was unable to operate the standard version but the low crank speed version works a treat!!!
by aminto
Fri Oct 21, 2011 4:19 pm
Forum: Tech
Topic: Example of tat for sale
Replies: 7
Views: 942
Flag: Scotland

Re: Example of tat for sale

....and a bargain at only 19.99....
by aminto
Wed Sep 14, 2011 2:29 pm
Forum: Tech
Topic: Oil Filters
Replies: 47
Views: 8505
Flag: Scotland

Re: Oil Filters

Here's a pictorial representation of Mr Mike's rear frame drain plug adaptation: http://www.classicmotorcycles.org.uk/b50/b50_oil_feed.htm The oil filter set up, from E&V, is located at http://www.shopevengineering.com/productdetail.htm?productId=-325187&shopBy=-8415&catalogId=-2087 or a...
by aminto
Mon Aug 01, 2011 6:06 pm
Forum: Tech
Topic: Tyre Pressures
Replies: 4
Views: 1038
Flag: Scotland

Re: Tyre Pressures

I have a 3.5x18 on the front (dunlop k70) and a 4.10x18 on the rear (dunlop k81 tt100). They are blown to 24 and 28psi and i am 200lb (give or take a lb or two... :-))
There is a formula in the handbook for the average weight (156lb): front 22psi + 1psi/28lb and rear 24psi + 1psi/14lb.
by aminto
Mon Aug 01, 2011 6:02 pm
Forum: Tech
Topic: oil?
Replies: 8
Views: 1385
Flag: Scotland

Re: oil?

AMSOIL 20W-50 IT IS THE BEST!!! Although in oz it is far too expensive so I have been recommended Penrite HPR30 20W-60 by my mechanic.... but if you know different i'd be happy to read your opinion!
by aminto
Mon Aug 01, 2011 5:54 pm
Forum: Tech
Topic: Rear Tyres -Road B50
Replies: 5
Views: 929
Flag: Scotland

Re: Rear Tyres -Road B50

Hello,
I transferred my 3.50x18 from the back to the front and installed a 4.10 dunlop k81 tt100 on the rear... it's sweeeeet!
Don't know what i'll do when the 3.5 dies??? Have them pumped to 24 and 28psi due to expanding girth... ...mine!
by aminto
Mon Aug 01, 2011 5:30 pm
Forum: Tech
Topic: Megacycle B50 ignition timing ????
Replies: 69
Views: 5576
Flag: Scotland

Re: Megacycle B50 ignition timing ????

Hello,
I had similar problems getting my b50 to run with a Pazon, frustration abounded, BUT I replaced the original Pazon with a 'Low Crank Speed' version and after a wee bit of re-adjustment and some carb cleaning off it ran and it continues so to do.... usually at second kick...
by aminto
Fri Jan 28, 2011 4:27 pm
Forum: Tech
Topic: Pazon ignition
Replies: 10
Views: 1550
Flag: Scotland

Re: Pazon ignition

Hello, I have a Pazon Sure-fire on my b50. Initially i had difficulties with the regular version of the sure-fire as the bike would not start (perhaps this was in part due to my poor starting technique). BUT after re-searching this forum I made sure that I bought a low crankshaft speed version (LS) ...
by aminto
Mon Dec 20, 2010 4:17 pm
Forum: Tech
Topic: Speedometer drive unit
Replies: 11
Views: 2675
Flag: Scotland

Re: Speedometer drive unit

Hello, To answer Graham and using the splendid diagrams supplied by crankbuster.... Examine diagram BB (top right)-- ...beneath the grease nipple (# 5) there is a knurled cylinder (# 6) that transmits the rotary motion of the knurled ring (# 8) attached to the rear wheel by the two inner teeth into ...
by aminto
Sun Dec 19, 2010 2:55 pm
Forum: Tech
Topic: Speedometer drive unit
Replies: 11
Views: 2675
Flag: Scotland

Re: Speedometer drive unit

So just to clarify, as long as the ratio of the speedo drive unit on the rear wheel is correct, be it 2:1 or 15:12, and this ratio is solely dependent on the speedometer itself (1600 or 1000 respectively) then one can use any B5330/xx or B5330/xxx speedo drive unit with suitable modifications for ax...
by aminto
Sat Dec 18, 2010 4:50 pm
Forum: Tech
Topic: Speedometer drive unit
Replies: 11
Views: 2675
Flag: Scotland

Speedometer drive unit

Hello, As far as I can make out the replacement drive unit for the b50ss is 19-9223 aka 60-3214. The drive that came off the bike is labeled BG5330/24. However, I am having difficulty sourcing this replacement part. There are a number of different Smith's speedometer drives available with either 2/1...
by aminto
Fri Feb 05, 2010 6:26 am
Forum: Tech
Topic: B50 registry
Replies: 65
Views: 119317
Flag: Scotland

Re: B50 registry

Rickard, May I add a little history on my bikes? B25SS - first sold by 'John T's Cycles' of Burlington, Wisconsin to Rudolf Wagner (now deceased) - last registered 1978 in WI (Plate # 16482) - sat in grain shed until 2008 when I purchased from the estate - re-registered in Illinois (Plate # CA 653) ...
by aminto
Sat Dec 05, 2009 3:06 pm
Forum: Tech
Topic: B25ss and wet sumping?
Replies: 32
Views: 3862
Flag: Scotland

Re: B25ss and wet sumping?

Gentlemen, I have an update on this problem (which should prove to one and all that sometimes the supposedly obvious answer is not the only answer)! The bike had been sitting for some time with a near full tank of gas. A puddle developed from the same place as previous (under the gear change) as the...
by aminto
Sun Jul 19, 2009 6:42 am
Forum: Tech
Topic: B25ss and wet sumping?
Replies: 32
Views: 3862
Flag: Scotland

Re: B25ss and wet sumping?

Steve, Many thanks for the link. That's what I was really looking for in the first place - sound practical advice... BUT what I really needed was advice from a member who had done the seemingly obvious in replacing the scavenge pipe only to realise that there was another reason for the wet sum... er...
by aminto
Sat Jul 18, 2009 6:08 pm
Forum: Tech
Topic: B25ss and wet sumping?
Replies: 32
Views: 3862
Flag: Scotland

Re: B25ss and wet sumping?

Rickard, In NO way did I intend to denigrate either you or this website! I believe this is a splendid site and I admire your fortitude (and minetymenace's) for keeping it going. The tech tips page I have read avidly, but perhaps, I do not know enough about bike mechanics to benefit fully from its wi...
by aminto
Sat Jul 18, 2009 5:54 am
Forum: Tech
Topic: B25ss and wet sumping?
Replies: 32
Views: 3862
Flag: Scotland

Re: B25ss and wet sumping?

Many thanks to all those who supplied useful answers. Two thoughts spring to mind: It would be useful if there was a section in this forum for neophytes who do not have the correct nomenclature at their fingertips. Secondly, perhaps a section on common basic repairs would also be useful as it would ...
by aminto
Fri Jul 17, 2009 6:35 am
Forum: Tech
Topic: B25ss and wet sumping?
Replies: 32
Views: 3862
Flag: Scotland

B25ss and wet sumping?

I apologise if this subject has been done to death but each situation is unique and may be illuminating (to someone other than the poster) so bear with me, please. After a ten day idle period my '71 B25ss developed a leak from the gear change where it exits the outer timing cover. I started the bike...
by aminto
Fri May 29, 2009 1:25 am
Forum: Tech
Topic: B50SS Fuel type
Replies: 6
Views: 662
Flag: Scotland

Re: B50SS Fuel type

Gizmo,
I tried 87 octane and had great difficulty starting! When I switched to 92 starting (and running) became much easier...
Andrew
by aminto
Wed Apr 29, 2009 2:13 am
Forum: Tech
Topic: Chain replacement
Replies: 8
Views: 1079
Flag: Scotland

Re: Chain replacement

2manyrides, Thank you for your thoughts on the matter but I fear you miss the point. I wish to ascertain the correct chain length and the correct method of setting up the drive train for maximum efficiency and minimum wear on the components involved. I have tried the half link method going from 106 ...
by aminto
Tue Apr 28, 2009 4:05 pm
Forum: Tech
Topic: Chain replacement
Replies: 8
Views: 1079
Flag: Scotland

Re: Chain replacement

Rickard, The gearing on my bike is 17/47... In my further research the owner's handbook has 17/52, the workshop manual has 17/52 with 106 links, while the 1971 replacement parts list has a 17 teeth final drive socket and a 52 teeth rear sprocket for the b25ss with a 108 link (pitches) chain. As the ...
by aminto
Tue Apr 28, 2009 5:20 am
Forum: Tech
Topic: Chain replacement
Replies: 8
Views: 1079
Flag: Scotland

Chain replacement

Gentlemen (and Ladies too), I have recently attempted to replace my aging Renolds 110 054 chain with a new 520 chain. 106 links is the length recommended for my b25 by manual after manual but I am unable to make the ends meet! Even with an additional link they will not come together. I have resorted...
by aminto
Tue Apr 28, 2009 2:15 am
Forum: Off topic
Topic: [bot]
Replies: 1
Views: 413
Flag: Scotland

[bot]

What exactly is a [bot] and why do google and yahoo want with this website???
by aminto
Sun Mar 01, 2009 7:47 am
Forum: News
Topic: How many 1972 B50SS were made?
Replies: 12
Views: 1837
Flag: Scotland

Rudedog,
In the 'bible' Rupert tells us that '8,000 units' of b50 were built. Can this number be broken down into yearly production numbers??? and what about b25's how many oif's were produced?
Andrew
by aminto
Tue Feb 17, 2009 4:33 am
Forum: Tech
Topic: Radaelli Rims any good?
Replies: 10
Views: 3202
Flag: Scotland

rim repair

Costa, How would you go about restoring the OEM rims? especially if there are areas of bare metal where the chrome has been lost...
Could you paint the rim? I've seen rims painted in black epoxy on Ebay... but would paint adhere to the rim where the chrome remained adherent?
Andrew
by aminto
Thu Jan 15, 2009 4:27 am
Forum: Tech
Topic: BSA USA (Dealer) Service Bulletins
Replies: 31
Views: 4180
Flag: Scotland

Paul,
I, too, have received my disc. It contains a wealth of information, much of which can be found nowhere else.
Many thanks, Andrew
by aminto
Fri Jan 02, 2009 2:30 am
Forum: Tech
Topic: Air Box Color
Replies: 3
Views: 574
Flag: Scotland

air box

Harold, I have a black frame '71 b50 which has a black air box and a '71 dove gray framed b25 which has a gray air box but it is not the same gray as the frame! It is a much grayer gray. Doh! that does not make much sense but I'll post a photograph of the box so that you might see the difference bet...
by aminto
Thu Dec 18, 2008 4:24 pm
Forum: Project bikes
Topic: Winter 2008/9 project
Replies: 4
Views: 960
Flag: Scotland

oif b25

Gentlemen (and Ladies too),
Does anyone know the production numbers for the oif '71 b25 and the oif '71 through '74 b50? I just wonder how many of these bikes were produced and what proportion remain in the land of the running....
Andrew
by aminto
Wed Dec 17, 2008 11:52 pm
Forum: Tech
Topic: Front brakeplate lock ring
Replies: 8
Views: 1038
Flag: Scotland

Richard, Many thanks for the information. A search on 'British Only Motorcycles and Parts' for 37-2058 shows the following: NUT, 3/4UNEFX20X1/4, LOCKING, PLATE. SPECIAL NOTE: SUITABLE FOR TWIN LEADING SHOE BRAKE 1969 & CONICAL. That appears to be what I'm looking for... ...or does it? Best regar...
by aminto
Wed Dec 17, 2008 11:44 pm
Forum: Project bikes
Topic: Winter 2008/9 project
Replies: 4
Views: 960
Flag: Scotland

Winter 2008/9 project

This is this winters project. It is a January 1971 b25 that had been stored in a Wisconsin grain shed since 1992. It is covered in 15+ years of grain dust and mud which have protected large areas. It has also suffered from an attack of rust particularly at the rear end... Nevertheless, it is virtual...
by aminto
Wed Dec 17, 2008 9:58 pm
Forum: Tech
Topic: Front brakeplate lock ring
Replies: 8
Views: 1038
Flag: Scotland

Front brakeplate lock ring

To all members,
Part number 37-3759, the front brakeplate lock ring, is shown on both the b25 and b50 parts lists as a locking ring with 6 'holes' for tightening. However, on both my b25 and b50 it is a 1 1/8 AF nut. Can anyone shed any light on this most intriguing paradox?
Andrew
by aminto
Mon Dec 15, 2008 12:08 am
Forum: Tech
Topic: Dove Gray paint
Replies: 12
Views: 4882
Flag: Scotland

modern replica paint

This information is for those grey frame owners in the USA wishing to repaint. I took a paint chip (my chainguard extension, the underside had never been exposed to sunlight) to The Home Depot who made up the following: to one US quart (31fl oz or 916ml) of white tint base ("Ultra-hide" by...

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