BSA Owners' Club Workshop Discussions

The BSA Workshop => Twins => Topic started by: Bess on 31 May, 2020, 19:43

Title: Re: Lightning
Post by: Bess on 31 May, 2020, 19:43
Hi,
    I would like to control the 2 Carbs from a single bowden cable to a linkage system above or adjacent.

Has anyone done this or have plans for such a system?

Thanks...
Title: Re: Lightning
Post by: chaz on 31 May, 2020, 20:34
the Triumph has twin carbs running off a single cable, with a junction box below the tank

https://www.ebay.co.uk/itm/Triumph-T120-1965-19-73-Twin-Throttle-3-Cable-Set-With-Adjusters-Junction-Box/264690103590?hash=item3da0c27526:g:STEAAOSwCyFbL~DY
Title: Re: Lightning
Post by: Bess on 31 May, 2020, 20:41
Hi Chaz,
            Thanks, I have this on the chokes and separate cables on the throttles.

I am thinking more on a solid linkage solution.

Thanks...
Title: Re: Lightning
Post by: wardy on 31 May, 2020, 21:32
Only one that springs to mind is for the triples - which would require modification to convert to 2 carbs, plus of course I think the triple intake stubs are not splayed. Might give some idea of bracketry or whatever.
Title: Re: Lightning
Post by: Bess on 31 May, 2020, 22:16
Hi Wardy,
              Seems like we are on the same wavelength, the set up you are referring made me think someone must have have made something for the Lightning  :)

Thanks...
Title: Re: Lightning
Post by: chaz on 31 May, 2020, 23:12
with a bit of engineering you could make up a linkage with solid rods , may pay to look at modern multi carb systems, Ive got twins and 4's at the unit . you would need a cam system for the cablle to run in and operate both carbs at the same time.
Title: Re: Lightning
Post by: Bess on 01 Jun, 2020, 08:06
Hi Chaz,
             That's what I'm after, I was hoping someone had already done the hard work and plans were available  :).

Best wishes...