Hola Flemish -
xxx
Ok, TFE 731 engines will be same. You might or might not have reversers.
Fuel (tip tanks) transfer procedures differences.
For fuel, common points are jet pumps, you can study the concept.
Fuselage tank same procedure, but if 36, different transfer procedures.
You might or might not have single point refueling system.
Some 35/36 have fuel dump system, for fuel jettison from tip tanks only.
Electrical - 28V DC part likely to be about same, expect 115V AC differences.
Hydraulic system very similar, as well as brakes. Same emergency brakes.
Same nose wheel steering system, 115V AC...
Pressurization, air conditionning, oxygen system same or similar.
Avionics of all Lears are different, as per customer options.
xxx
My primary activity is training/instruction...
In all honesty, no instructor expects you to "study anything" prior to courses.
Or if they expect you do so, they would send you manuals or familiarization data...
But welcome to the Lear world. They are fun to fly...
My son just got hired as F/O 31A, he got a Lear rating recently. His first job.
All the best to you -

Happy contrails