Handraulic version of a choke control
Remember them?
All cars had them when we were young
and carburettors delivered cheap fuel
Now it is injected and darn expensive
Nef
Yes I remember them on cars very well. Some the choke had to be all out on start up,
then shoved back in again to a position which differed in every car.
get it wrong and the things either cut out or flooded.
Happy days. not
john