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Revs drop in 1981 Ford Falcon GL

Whenever I take my foot of the accelerator at low speed in my 1981 Ford Falcon GL 4.1-litre auto ute, specially when turning corners in town, at stop signs or stopped by traffic, the revs drop immediately to zero and, unless I am quick with the manual choke, the motor cuts out. No spluttering, instant drop of revs and engine stops. When traveling on the open road there is no problem until speed is reduced to low and then the problem happens. As a consequence I am driving around town with either the choke out or my hand resting near it, ready to pull it out. Two mechanics and a carby expert haven't been able to find a fault, the carby expert told me to give it a "good shake up" by driving to Wollongong and back. He also advised me to use Premium fuel. Neither suggestion worked.

The fact that you can save it by using the choke tells you it's running too lean. Have the carby reconditioned, it's probably worn, make sure the idle mixture is set correctly, and replace the air filter.

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