Hi friends
Succeeded to remove ISCV. Was afraid to use a screw driver for the prying action because of risk of breaking housing edge--After some tought tried using a long thick nylon cable tie strapped around the ICSV body and then pulled hard on the loose long end which gave me a good grip---ICSV poppped out after some side jerkings and hard pulls

I also removed the base idle control screw and found its rubber O ring heavily deteriorated. Replaced O ring, cleaned and lubricated ISCV + idle screw and relative ports, and set idle rpm as recommended by you----Perfect.Hot engine Idle rpm very stable even when electical load in put on. Cold engine RPM at 1200 rpm is this OK?
Many thanks again