Choke start problem

[PaulShaw]

I am new to the SOC and new to owning a Stag and looking forward to the good weather to get the top down and on the road.
one issue I have is on a cold start with the choke on its very lumpy, it gets better the more I push the choke lever in and when it's warmed up runs fine.
can anyone please offer any advice.
I have set the fast idle screw to the choke cam as instructed in the manual

[DJT]

Welcome,

That sounds about right. I pull the choke out fully, start the car, then push it in to a position where it runs smoothly, but on fast idle. Usually about 1/4 to 1/2 inch from fully home depending on temperature.

If you haven't been made aware, always depress the accelerator pedal whilst pulling the choke out, but release the pedal when cranking. This reduces the strain on the LH choke cable; the one that operates the fast idle cam.

[PaulShaw]

Thanks Dave, I will try that

[PaulShaw]

Hi Dave
did as you suggested and it was much better, will see how it goes.
thanks for the advice

[PaulShaw]

I took the car out for its first run today since I got it home, it started first turn, on the road it had a problem either misfiring or hesitating when I put my foot down in any gear, if I accelerated steady it didn't do it, it did this for about 8 mile, then it stopped doing it for the last few miles home.
It didn't do it the last two short trips when I bought it all I have done is set the fast idle and freed off a stuck chamber vent pin.
anyone any advice please?

[022Dave]

Hello Paul,

I had a problem with similar symptoms a few years back, which turned out to be moisture inside the dizzy cap. Maybe worth a check. Dunno how it got there, but it's cured itself now.

Dave

[Lingen]

Paul.
Perhaps you put the choke in a bit too soon?
Also ,have you checked the oil level in the carburettor dashpots? Most important, particularly when the engine is cold, to stop the symptoms you were experiencing.
Mike.

[mole42]

Mine needs the choke out for quite a while after a cold start - by which I mean regular winter mornings when I may have had to wipe the ice off the windows! I use the same regime as DJT (post #2 above) but on the 3-mile run into work, it's usually still needing a bit of choke when I get there.
Fuel consumption is around 32 to the gallon and when we're on a longer run the engine is just fine after about 5 miles.

[PaulShaw]

Thanks guys
I will check the dash pot and try keeping the choke on longer