[Mgs] choke problem

[Paul Hunt]

With that choke arrangement the inner stays still and the outer is 
pushed up the inner as the dash control is pulled.  That lifts the lever 
on the interconnecting shaft which turns the cams on each carb to engage 
fast idle and push the jets down.

To set the cable pull the dash control out about half an inch, slacken 
the screw holding the inner, then pull the free end of the inner up 
until the fast idle cams just touch the fast idle screws and tighten the 
clamp screw.

Pulling the chock control further should them lower the jets, and 
pushing it home should raise them.

This does need the clamps on the interconnecting shaft and the fast idle 
screws to be adjusted correctly so both carbs do the same thing at the 
same time in terms of enrichment and fast idle.

PaulH.


On 24/03/2026 01:31, dave northrup wrote:
>
> Disclaimer: 18GB-U-H 24109  engine in an MGA.  That engine came with a 
> weber; I put these carbs on.
>
> I am having trouble – when I pull the choke knob it does not change 
> the choke mechanism.  What am I doing wrong?
>
>
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