Seems as though I misread a few numbers first time around. here is the corrected info:
.....on the throat of the carb
E5TE 9510 ABA (that second figure is a 5 rather than an S)
List 50174-1
2754

...on the silver/blue tag
E5TE ABA
A4K1

 

Just happened across an adjusting tool that will work on those 'tamper-proof idle jets,...its a Harbor Freight item 93916
Precision Screwdriver Set - 33 Piece

The hex head adapter that is very close to 3/32" is just a wee bit large for the screws,...BUT the small straight-slotted screw driver adapter labeled 2.5 will work just find.