DS21 & DS21M / DS19A & DS19MA Repair Manual — Page 105

3, Remove: - the atomizer (15) for the accelerator pump. 4, Remove (on 28/36 DDE only) : - the accelerated idling control (16) with its valve mechanism, complete, - the adjusting screw (17) for accelerated idling speed with its spring. 5. Remove: - the main jets (22) and (21), - the non-return valve (23) for the accelerator pump, - the correction jets (18). 6. Free? - the emulsion tubes under the correction jets (18), - the accelerator pump piston (24) by pulling its elbowed lever. 7. Remove : - the mixture control screw (19) for idling, with its spring, - the slow running jets (20).