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Last post Thunderbolts & Lightning, Pet…
by SteveS View the latest post
Thu Jan 14, 2021 8:11 am
Requests
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43 Posts

Last post Re: B25 oil pump worm gear re…
by richardreade View the latest post
Sun Mar 01, 2020 9:16 am

Engine

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Cylinder head
Moderator: minetymenace
Topics: 1

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Last post Re: Oil Leak-B50 SS
by minetymenace View the latest post
Thu Aug 13, 2015 10:30 pm
Valves
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Last post Re: valve spring data
by beat View the latest post
Sat Mar 21, 2020 8:54 pm
Pushrods
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Last post Push rods
by b50root View the latest post
Wed Jul 22, 2009 11:14 am
Piston
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Last post Calculate TDC
by b50root View the latest post
Tue Jun 12, 2012 9:53 am
Camshaft
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Last post Calculate the cam and mount M…
by b50root View the latest post
Tue Jun 12, 2012 9:52 am
Clutch
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39 Posts

Last post Basic clutch run down, b50 in…
by britgaskets View the latest post
Wed Oct 13, 2010 3:33 am
Gearbox
Moderator: minetymenace
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8 Posts

Last post Putting the gearbox in while …
by britgaskets View the latest post
Wed Oct 13, 2010 3:42 am
Crankcase
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36 Posts

Last post Re: Tech Write-Up… BSA Unit S…
by skippy View the latest post
Fri Feb 14, 2014 11:44 am
Oil & Oil pump
Moderator: minetymenace
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Last post Re: b25 inline filter
by minetymenace View the latest post
Tue Feb 18, 2014 6:29 pm
Carburetor
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5 Topics

7 Posts

Last post Re: Concentric idle and picku…
by beat View the latest post
Sat Apr 11, 2020 8:35 pm
Timing
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Last post Check your timing mark
by b50root View the latest post
Tue Jun 12, 2012 10:10 am
Unspecified
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7 Posts

Last post Re: How To Remove Inner Timin…
by Ubert767 View the latest post
Fri Aug 03, 2018 7:31 am

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Electrics
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Last post Re: Tidy Electrics Box Wiring
by minetymenace View the latest post
Tue Oct 23, 2018 8:09 am
Suspension
Repair and Maintenance Fork and Suspension
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5 Topics

19 Posts

Last post Steering Stem
by minetymenace View the latest post
Mon Oct 19, 2020 11:17 am

Frame & Body work

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Paint
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Last post Re: 78 ccm 350 trials bike re…
by minetymenace View the latest post
Wed Aug 08, 2018 7:30 pm
Frame
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31 Posts

Last post Re: B50 Frame CAD files
by FGF View the latest post
Thu Dec 24, 2020 11:03 am
Tin & Seat
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Last post Re: 83-2674 Chainguard extens…
by minetymenace View the latest post
Thu Mar 14, 2013 9:47 am
Silencer
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Last post Re: OIF B25 silencer
by *beezergeezer* View the latest post
Fri Nov 13, 2015 1:29 am

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Thunderbolts & Lightning, Peter Crawford

Last post by SteveS « Thu Jan 14, 2021 8:11 am

by SteveS » Thu Jan 14, 2021 8:11 am

0 Replies

520 Views

Last post by SteveS
Thu Jan 14, 2021 8:11 am
B50 Frame CAD files

Last post by FGF « Thu Dec 24, 2020 11:03 am
Replies: 11
by FGF » Mon Nov 23, 2020 12:11 pm

11 Replies

2506 Views

Last post by FGF
Thu Dec 24, 2020 11:03 am
Steering Stem

Last post by minetymenace « Mon Oct 19, 2020 11:17 am

by minetymenace » Mon Oct 19, 2020 11:17 am

0 Replies

1704 Views

Last post by minetymenace
Mon Oct 19, 2020 11:17 am
Drawing of Steering Stem

Last post by minetymenace « Sun Oct 04, 2020 12:32 am

by minetymenace » Sun Oct 04, 2020 12:32 am

0 Replies

1583 Views

Last post by minetymenace
Sun Oct 04, 2020 12:32 am
valve spring data

Last post by beat « Sat Mar 21, 2020 8:54 pm
Replies: 1
by victor » Sat Mar 21, 2020 8:42 am

1 Replies

4724 Views

Last post by beat
Sat Mar 21, 2020 8:54 pm
Norton Villiers Triumph - Viable proposition, or a house of cards?

Last post by SteveS « Sun Feb 09, 2020 1:01 pm

by SteveS » Sun Feb 09, 2020 1:01 pm

0 Replies

3930 Views

Last post by SteveS
Sun Feb 09, 2020 1:01 pm
O.I.F B25/B50: The Incomplete Guide. 3rd Edition

Last post by Brad Jones « Tue Oct 30, 2018 3:44 pm
Replies: 1
by b50root » Tue May 22, 2012 6:27 am

1 Replies

7984 Views

Last post by Brad Jones
Tue Oct 30, 2018 3:44 pm
Tidy Electrics Box Wiring

Last post by minetymenace « Tue Oct 23, 2018 8:09 am
Replies: 6
by minetymenace » Fri Jul 20, 2018 9:50 am

6 Replies

7875 Views

Last post by minetymenace
Tue Oct 23, 2018 8:09 am
78 ccm 350 trials bike red paint colour code

Last post by minetymenace « Wed Aug 08, 2018 7:30 pm
Replies: 1
by Peter Woodrow » Wed Aug 08, 2018 3:42 pm

1 Replies

10515 Views

Last post by minetymenace
Wed Aug 08, 2018 7:30 pm
Purple b50

Last post by minetymenace « Tue Mar 20, 2018 7:19 am
Replies: 1
by Steveskates » Tue Mar 20, 2018 12:17 am

1 Replies

4556 Views

Last post by minetymenace
Tue Mar 20, 2018 7:19 am
How to order Brads new book

Last post by Brad Jones « Sat May 05, 2018 7:59 am
Replies: 8
by HPbyStan » Sat Mar 17, 2018 11:32 pm

8 Replies

8927 Views

Last post by Brad Jones
Sat May 05, 2018 7:59 am
BSA B25/50 service Bulletins

Last post by b50root « Thu Jan 04, 2018 7:03 am
Replies: 1
by bluemaicoman » Tue Jan 02, 2018 11:27 pm

1 Replies

2194 Views

Last post by b50root
Thu Jan 04, 2018 7:03 am
THE RUPERT RATIO UNIT SINGLE ENGINE MANUAL FOR C15 B40 B25

Last post by crankbuster « Fri Sep 08, 2017 8:34 am
Replies: 7
by b50root » Tue May 22, 2012 6:28 am

7 Replies

5105 Views

Last post by crankbuster
Fri Sep 08, 2017 8:34 am
BSA B44 Victor Special tank details

Last post by ricasso « Sat Dec 10, 2016 2:15 pm
Replies: 1
by Didlydon » Wed Nov 30, 2016 12:00 pm

1 Replies

3176 Views

Last post by ricasso
Sat Dec 10, 2016 2:15 pm
OIF B25 silencer

Last post by *beezergeezer* « Fri Nov 13, 2015 1:29 am
Replies: 1
by Sprint955 » Thu May 01, 2014 8:45 pm

1 Replies

5514 Views

Last post by *beezergeezer*
Fri Nov 13, 2015 1:29 am
nickel plate

Last post by Grayham « Mon Sep 28, 2015 7:20 am
Replies: 1
by johnq » Sun Sep 27, 2015 9:58 pm

1 Replies

5315 Views

Last post by Grayham
Mon Sep 28, 2015 7:20 am
Oil Leak-B50 SS

Last post by minetymenace « Thu Aug 13, 2015 10:30 pm
Replies: 1
by TritonMike » Thu Aug 13, 2015 9:01 pm

1 Replies

7776 Views

Last post by minetymenace
Thu Aug 13, 2015 10:30 pm
1971 B25t repair manual

Last post by hemisxpck « Mon Apr 27, 2015 9:38 pm
Replies: 4
by hemisxpck » Mon Apr 27, 2015 8:47 am

4 Replies

5346 Views

Last post by hemisxpck
Mon Apr 27, 2015 9:38 pm
Rolling Thunder

Last post by Keith « Sun Mar 22, 2015 9:44 am
Replies: 4
by Keith » Fri Mar 20, 2015 9:43 am

4 Replies

3395 Views

Last post by Keith
Sun Mar 22, 2015 9:44 am
Codswallop and other misleading info

Last post by beat « Sun Dec 07, 2014 4:09 pm
Replies: 2
by roadplough » Sun Dec 07, 2014 1:41 am

2 Replies

2877 Views

Last post by beat
Sun Dec 07, 2014 4:09 pm
The Rupert Ratio Unit Single Manual Volume 2

Last post by b50root « Fri Mar 21, 2014 10:34 am
Replies: 2
by Richard Hunt » Thu Mar 20, 2014 6:44 pm

2 Replies

3137 Views

Last post by b50root
Fri Mar 21, 2014 10:34 am
Tech Write-Up… BSA Unit Single Crankcase Breathing

Last post by skippy « Fri Feb 14, 2014 11:44 am
Replies: 13
by bunnrex » Wed Sep 30, 2009 4:31 am

13 Replies

10491 Views

Last post by skippy
Fri Feb 14, 2014 11:44 am
tr25w con rods

Last post by bajatr25w « Wed Feb 12, 2014 12:26 am
Replies: 5
by bajatr25w » Mon Feb 10, 2014 10:41 pm

5 Replies

3416 Views

Last post by bajatr25w
Wed Feb 12, 2014 12:26 am
ccm oiling coversion

Last post by midgie « Tue Feb 11, 2014 9:01 pm
Replies: 3
by bajatr25w » Tue Feb 11, 2014 5:27 am

3 Replies

3108 Views

Last post by midgie
Tue Feb 11, 2014 9:01 pm
Fork mods

Last post by blaise « Thu Mar 06, 2014 7:43 pm
Replies: 18
by fastharry » Thu Dec 05, 2013 7:42 pm

18 Replies

19215 Views

Last post by blaise
Thu Mar 06, 2014 7:43 pm
83-2674 Chainguard extension

Last post by minetymenace « Thu Mar 14, 2013 9:47 am
Replies: 13
by minetymenace » Fri Dec 03, 2010 2:42 pm

13 Replies

9364 Views

Last post by minetymenace
Thu Mar 14, 2013 9:47 am
Metisse News Frame Kit Mk4.

Last post by minetymenace « Fri Oct 12, 2012 12:10 am

by minetymenace » Fri Oct 12, 2012 12:10 am

0 Replies

3902 Views

Last post by minetymenace
Fri Oct 12, 2012 12:10 am
Check your timing mark

Last post by b50root « Tue Jun 12, 2012 10:10 am

by b50root » Tue Jun 12, 2012 10:10 am

0 Replies

4985 Views

Last post by b50root
Tue Jun 12, 2012 10:10 am
Calculate TDC

Last post by b50root « Tue Jun 12, 2012 9:53 am

by b50root » Tue Jun 12, 2012 9:53 am

0 Replies

4856 Views

Last post by b50root
Tue Jun 12, 2012 9:53 am
Calculate the cam and mount Marks vernier gear

Last post by b50root « Tue Jun 12, 2012 9:52 am

by b50root » Tue Jun 12, 2012 9:52 am

0 Replies

4754 Views

Last post by b50root
Tue Jun 12, 2012 9:52 am
Blueprinting The BSA B25 1969 Power Unit

Last post by b50root « Tue May 22, 2012 6:18 am

by b50root » Tue May 22, 2012 6:18 am

0 Replies

2934 Views

Last post by b50root
Tue May 22, 2012 6:18 am
Modified electric drawing

Last post by minetymenace « Thu Dec 29, 2011 11:36 am
Replies: 5
by b50root » Mon Jan 17, 2011 8:44 pm

5 Replies

7467 Views

Last post by minetymenace
Thu Dec 29, 2011 11:36 am
T25ss wheel hub paint

Last post by Orange dog « Mon Nov 28, 2016 12:31 am
Replies: 4
by Captain » Mon Jul 04, 2011 5:00 pm

4 Replies

5728 Views

Last post by Orange dog
Mon Nov 28, 2016 12:31 am
original paint colors

Last post by b50root « Fri Jan 14, 2011 1:38 pm
Replies: 6
by ronbuell » Thu Dec 30, 2010 11:22 pm

6 Replies

33443 Views

Last post by b50root
Fri Jan 14, 2011 1:38 pm
Building crank into Crankcases B44 and earlier

Last post by kommando « Sun Nov 28, 2010 8:14 pm

by kommando » Sun Nov 28, 2010 8:14 pm

0 Replies

3704 Views

Last post by kommando
Sun Nov 28, 2010 8:14 pm
CCM Frame 1973 1974

Last post by bigbeezas « Fri Nov 26, 2010 10:45 pm
Replies: 11
by Toots » Sun Nov 14, 2010 12:32 am

11 Replies

6803 Views

Last post by bigbeezas
Fri Nov 26, 2010 10:45 pm
Lucas 2MC Capacitor Warning

Last post by britgaskets « Fri Oct 22, 2010 12:35 am
Replies: 3
by b50root » Mon Aug 10, 2009 6:19 am

3 Replies

4053 Views

Last post by britgaskets
Fri Oct 22, 2010 12:35 am
Basic BSA b44 internals.

Last post by britgaskets « Wed Oct 13, 2010 3:46 am

by britgaskets » Wed Oct 13, 2010 3:46 am

0 Replies

3146 Views

Last post by britgaskets
Wed Oct 13, 2010 3:46 am
Timing gear marks and don't forget to check foot direction!

Last post by britgaskets « Wed Oct 13, 2010 3:45 am

by britgaskets » Wed Oct 13, 2010 3:45 am

0 Replies

3134 Views

Last post by britgaskets
Wed Oct 13, 2010 3:45 am
Putting the gearbox in while in bike.

Last post by britgaskets « Wed Oct 13, 2010 3:42 am

by britgaskets » Wed Oct 13, 2010 3:42 am

0 Replies

6466 Views

Last post by britgaskets
Wed Oct 13, 2010 3:42 am
Changing fork oil seals

Last post by TritonMike « Wed Jun 16, 2010 10:38 pm
Replies: 3
by Richard Hunt » Fri May 29, 2009 6:11 pm

3 Replies

4339 Views

Last post by TritonMike
Wed Jun 16, 2010 10:38 pm
Building the crank into the casings B50 only

Last post by kommando « Fri May 28, 2010 5:34 pm
Replies: 10
by Mark Cook » Fri Dec 18, 2009 2:31 pm

10 Replies

6336 Views

Last post by kommando
Fri May 28, 2010 5:34 pm
Gear change quadrant repair

Last post by gauloises « Wed Dec 23, 2009 5:31 pm
Replies: 5
by Mark Cook » Tue Dec 22, 2009 7:21 pm

5 Replies

4350 Views

Last post by gauloises
Wed Dec 23, 2009 5:31 pm
The first to post in paint...done today! What do you think?

Last post by 2manyrides « Thu Oct 15, 2009 2:41 am
Replies: 5
by 2manyrides » Sun Oct 11, 2009 3:31 am

5 Replies

5744 Views

Last post by 2manyrides
Thu Oct 15, 2009 2:41 am
2MC Capacitors & Batteries

Last post by b50root « Mon Aug 10, 2009 6:12 am

by b50root » Mon Aug 10, 2009 6:12 am

0 Replies

2989 Views

Last post by b50root
Mon Aug 10, 2009 6:12 am
Rectifier

Last post by b50root « Wed Aug 05, 2009 6:36 am

by b50root » Wed Aug 05, 2009 6:36 am

0 Replies

3056 Views

Last post by b50root
Wed Aug 05, 2009 6:36 am
Zener Diode

Last post by b50root « Tue Aug 04, 2009 12:38 pm

by b50root » Tue Aug 04, 2009 12:38 pm

0 Replies

3141 Views

Last post by b50root
Tue Aug 04, 2009 12:38 pm
Fork Damper Tool

Last post by b50root « Fri Jul 24, 2009 7:25 am

by b50root » Fri Jul 24, 2009 7:25 am

0 Replies

3058 Views

Last post by b50root
Fri Jul 24, 2009 7:25 am
Gear cluster exploded

Last post by b50root « Thu Jul 23, 2009 8:35 am

by b50root » Thu Jul 23, 2009 8:35 am

0 Replies

3245 Views

Last post by b50root
Thu Jul 23, 2009 8:35 am
Swing arm Drawing

Last post by b50root « Thu Jul 23, 2009 8:32 am

by b50root » Thu Jul 23, 2009 8:32 am

0 Replies

3660 Views

Last post by b50root
Thu Jul 23, 2009 8:32 am
Frame Drawing

Last post by b50root « Thu Jul 23, 2009 8:30 am

by b50root » Thu Jul 23, 2009 8:30 am

0 Replies

3654 Views

Last post by b50root
Thu Jul 23, 2009 8:30 am
Remove engine from frame

Last post by b50root « Thu Jul 23, 2009 8:28 am

by b50root » Thu Jul 23, 2009 8:28 am

0 Replies

3663 Views

Last post by b50root
Thu Jul 23, 2009 8:28 am
B25/B44 Fork Oil Seal Holder removal tips

Last post by B44R « Tue Apr 21, 2009 9:47 am
Replies: 10
by gunnag » Sat Apr 11, 2009 4:37 pm

10 Replies

5992 Views

Last post by B44R
Tue Apr 21, 2009 9:47 am
Inside Anders' lozenge muffler / silencer

Last post by beat « Sun Aug 12, 2007 7:32 pm
Replies: 9
by roadplough » Tue Aug 07, 2007 1:44 am

9 Replies

6445 Views

Last post by beat
Sun Aug 12, 2007 7:32 pm

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