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Twins / A10 tank centre fixing bolt
« on: 21 February, 2021, 15:51:24 »
What is the size and thread type of the tank centre fixing bolt (part No 42-8011 ) on an A10 Golden Flash?
Hope you can help.


Twins / A10 Golden Flash
« on: 02 October, 2020, 09:55:38 »
What is the actual function of the crank case pressure release valve and how do I know its working properly? Does it need cleaning out periodically and if so can this be done with the engine in situ?

Regards to you all during these difficult times.


Twins / A10 steering lock
« on: 09 July, 2020, 20:27:11 »
Is it possible to remove the grub screw and steering lock without first taking off the headlamp nacelle and shroud? If not I assume it would be necessary to drop the forks?


Twins / A10 convertion to 12v negative earth
« on: 14 July, 2019, 12:03:41 »
I am considering converting my 1958 A10 to 12v negative earth electrics. Is this likely to be an expensive job and what will it involve? Hope the members can help and await your answers in anticipation.

Regards Rich

Twins / A10 sump plate studs
« on: 07 July, 2018, 13:27:37 »
What is the thread size of the part of the stud that goes into the crank case and if required what size helicoil insert would I need .Thanks in anticipation.

The Star and Garter / BSA T shirts
« on: 12 February, 2018, 14:19:08 »
Tesco's have got some BSA Golden Flash T shirts in store for 8.00. They are grey with amongst other things a plunger frame Golden Flash in white printed on them.


Twins / Fitting an electronic impulse Rev Counter to an A10
« on: 28 January, 2018, 15:49:34 »
Here's a question for you electrically minded boffins out there. I want to fit an electronic Rev Counter to my A10 which has a 6volt positive earth system. Unfortunately the rev counter is 12volt negative earth, however I have managed to source a 6 to 12volt DC step up converter. Having researched the internet for a possible wiring diagram it is suggested that it be wired up as per the diagram below. Can anyone out there confirm that this the correct way to do it and if not suggest the best way forward.
Thanks in anticipation.

Which BSA do you ride? / 1958 A10
« on: 17 October, 2017, 17:43:00 »

Just got my 1958 A10 running smoothly so I thought I would post a Photo of it.                                                                                                            However I am no sure I have done this properly. 

Twins / A10 Carb
« on: 13 October, 2017, 19:42:48 »
I have just taken the carb off my 1958 A10 Gold Flash  to do a refurb and its stamped 376/15 which I believe is the wrong carb. I understand it should be a 376/17. Can anybody please tell me what effect the 376/15 will have on the way the Bike runs if I put it back on.
Thanks in anticipation.
Rich Johnstone

Twins / Steering Lock
« on: 02 February, 2017, 19:54:53 »
How do you remove the steering lock from an A10 with a headlamp nacelle.

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