Cold starting problem

[dereksharpuk]

My Series 2, running on triple SUs has just had a total engine rebuild, fitting of 123 electronic ignition and a good rolling road tune. It starts beautifully second time of the day (hot or cold), but first time it coughs, and stops about 5 times after turning the key, no matter where the throttle is. I can hear the fuel pump working when the ignition is first turned on. Do you think this is fuel trying to get to the carbs? It drive beautifully and as I said, once started, it when I turn it of & start again it starts instantly and idles smoothly at about 800 RPM. The battery is fine.

[chrisfell]

These symptoms can be caused by insufficient enrichment.
In other words the choke isn’t dropping the main jets.

[mgcjag]

Hi Derek....for first start when cold pull out the choke...dont touch the throttle.........does it start and run....slowly pushing in the choke.....Steve

[dereksharpuk]

Thanks both. I'll check that the choke is working properly.