The BSA A7-A10 Forum

Technical (Descriptive Topic Titles - Stay on Topic) => Lucas, Ignition, Charging, Electrical => Topic started by: goldstar 39 on 21.04. 2011 06:34

Title: Ignition cut out button
Post by: goldstar 39 on 21.04. 2011 06:34

Does  anyone have  a few photos of an early Ignition cut out button please ?
Thank you
Richard

Title: Re: Ignition cut out button
Post by: LJ. on 21.04. 2011 09:18

How early? There is the button on the end of magneto type which is not really safe as you have to lean down to push it to kill engine, not easy if clutch is held in. I'm not sure of handlebar types though. My magneto button type is a 1949 model according to the tab, not sure when these were modified to take handlebar buttons.

Title: Re: Ignition cut out button
Post by: goldstar 39 on 21.04. 2011 09:31

Thanks for your reply LJ it would be the handle bar type .Another question I hope you dont mind ? An engine  begining with  the number zA10 is this suitable for a  1953 plunger model
Thanks Richard

Title: Re: Ignition cut out button
Post by: Brian on 21.04. 2011 10:12

No, a 53' engine should start with a B. Hope this doesnt upset the apple cart.

Title: Re: Ignition cut out button
Post by: goldstar 39 on 21.04. 2011 10:31

Thanks but will it fit in to  a 53 ?
Richard

Title: Re: Ignition cut out button
Post by: Brian on 21.04. 2011 10:42

Yes, there is no difference in the engines, just the numbers.

Title: Re: Ignition cut out button
Post by: trevinoz on 22.04. 2011 02:17

Being pedantic, Brian, there is a difference.
The BA10 has a crankshaft oilseal whereas the ZA10 doesn't.
  Trev.

Title: Re: Ignition cut out button
Post by: BSA_54A10 on 23.04. 2011 10:18

Don't you need a bolt up gearbox engine to fit into a plunger frame ?

Title: Re: Ignition cut out button
Post by: trevinoz on 26.04. 2011 04:34

Richard,
                 This is the magy cut-out button on my Flash.
The same thing was used for many years and was also used as a horn button up to 1955.
They are readily available.

   Trev.