The 900SSie was introduced in 98 and the 750SSie in 99.
Both used the Magneti Marelli 15M ECU. The 900 for sure used the "Greentop" Weber injector and I believe the 750 did as well. If you look at the injector on a 900 you will see that it has green on it, hence "Greentop"
The attachment shows the specs of Weber injectors.