Series 11A keeps stopping

Went to give the old girl a run to day and the engine runs for a short while then stops, if you leave it for a while it will start and run a bit then stops, it’s the original petrol engine in it, I think it’s fuel related is there something common I should try first with it, it was running fine a couple of weeks ago.
Thanks

Is the choke working ok, it's not stuck on is it? Also, whilst it is running watch the fuel in the in-line filter to make sure there is a steady flow. Have you taken a couple op's spark plugs out to check their colour/condition. They should be dry and a tan colour.

Col

Thanks I will check, the other thing I have noticed is the little round charge light does not all ways come on when you turn the ignition on, should that not come on when the ignition is switched on.

If your charge light is not coming on would supect an ignition supply fault try a wire direct from battery to coil and see if it runs [need to take it off to stop it].

Strange really both the green light and red light comes on now when the ignition is turned on, engine starts, lights go out and it’s running fine again. I have pulled various spade connectors on and off but I don’t know what I’ve done if anything.

Buy some electrical contact cleaner spray and give the switch a liberal spray anywhere you can get the fluid to enter.

Yes I will try that
Thanks