Twin HS4 carburetors

[KevinB]

I spotted a fairly crabby, but complete looking twin HS4 set-up with manifold and linkages. Left a bid on spec and won.

Arrived today, AUD665 carbs. Triumph origin I think. Likely to be of any use for a Minor?

Thanks

[philthehill]

Triumph Spitfire 1500cc carbs.
https://sucarb.co.uk/carbspec/carburett ... es/id/2419
The Minor carb is at an angle with vertical float chamber. The Spitfire carbs are horizontal with vertical float chambers.
They can be made to fit but you will need to re-needle the carbs and may have to change the damper springs.

[KevinB]

Thank you.
I see the float chamber is attached with a bolt. Is it possible to just rotate it a few degrees to make it vertical, if that’s what the manifold needs?

[philthehill]

They can be made to fit by adjusting/removing the stop. The float chamber must not be able to rotate once the stop is ajusted/removed so you will have to devise and fit a new stop.

[KevinB]

Thank you.
For now, they will be added to my parts collection. To be used another day. My Minor is still at the workshop, refusing to run consistently

[mobylette]

Burlen sell the adaptors


https://sucarb.co.uk/float-chambers-spa ... ptors.html

[KevinB]

Burlen sell the adaptors
https://sucarb.co.uk/float-chambers-spa ... ptors.html

Excellent, good to know.