Opel Corsa B 1993–2000 Service and Repair Manual: 35 PDSI carburettor - adjustments

Note: Under normal operating conditions only the carburettor idle adjustments will need attention. Checking and adjustment of the following settings is not a routine operation and should only be necessary after carburettor overhaul or if the operation of the carburettor is suspect.

Fast idle

1. The fast idle system comes into play when the choke control is operated. It is adjusted by a screw which acts on the throttle spindle lever (see illustration).

Fuel and exhaust systems - carburettor models
Fast idle adjustment screw (arrowed)

2. Adjustment is correct when, with the choke control pushed in and the throttle released, the end of the screw is just in contact with the lever.

Accelerator pump delivery

3. The stroke of the accelerator pump can be adjusted by turning a nut on the end of the pump operating rod. The desired delivery is given in the Specifications.

4. Apart from the above points.

5. Check that the stream of fuel ejected from the accelerator pump delivery tube hits the throttle valve shaft. Adjust if necessary by careful bending of the delivery tube.

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    See also:

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