You may want to look for a better dealerInteresting that my Dealer refers to disconnecting the "exhaust valve" and "EGR" when referring to the Secondary Air System and wasn't aware that disconnecting the O2 sensors disables the SAS. No wonder you service your own bikes Tony!!
Not only does the Scrambler not have an "exhaust valve", but "EGR" is an acronym for "Exhaust Gas Recirculation".
EGR is a nitrogen oxide emissions reduction technique used almost exclusively in automotive applications. It works by recirculating a portion of an engine's exhaust gas back to the engine cylinders. This dilutes the O2 in the incoming air stream and provides gases - inert to combustion - to reduce heat and peak temperatures. This is done to clean up emissions.
There is no motorcycle anywhere (that I am aware of) that employs this relatively complex system.
I've seen "SAI" (secondary air intake) also referred to as "PAIR" (pulsed air intake system), but no one would ever confuse this with an EGR system.
This secondary air intake system simply adds fresh atmospheric air into the exhaust stream (post combustion) to burn any fuel left in the system, post regular combustion (no re-circulation BACK into the combustion chamber).
Technically, removing the O2 sensors function does not "disable" the SAI, but since it gets its signal to open from the O2, then - well... it never opens.