[Mgs] choke not working

[Paul Hunt]

When the choke control is pulled the outer should rise to lift the brass 
lever.

That turns the interconnecting rod which rotates the cams on the carbs.

The first part of that rotation (should be about 1/2" of control 
movement) bears on the fast idle screw to open the throttle butterfly, 
then further rotation pushes the jet lever down for enrichment.

If pulling the control doesn't move the cable outer up to lift the lever 
there is probably too much free play.  To set the choke cable I pull the 
control about half an inch then pull the cable inner through the 
trunnion until the cam is just about to start moving the jets down.  It 
might be surprising just how much inner you have to pull through to get 
that right.

The other thing is that with the control pulled about half way the lever 
should make a right-angle to the cable.  Too low makes it stiff to start 
moving and too high means you can't pull the control far enough for full 
enrichment.

PaulH.

On 22/06/2024 20:02, dave northrup wrote:
> The brass part does not move via the cable.  That is my problem.  I 
> can manually move the brass part no problem.   But the cable does 
> nothing when the knob is pulled out although the knob comes out 3/4"
>
>