The Powertorque motor will not kickback with the spark plug in the decomp hole ,Victa made Powertorque motors that never used a decomp the hole was never drilled or threaded in the head on some Victa mowers .
Kickback is usually felt when you try and start the motor without the blade plate fitted as the blade plate acts as a flywheel also the spinning mass is reduced on a Victa 24 with a V belt to the cutter plate.
I even made a video showing no kickback on a Powertorque without the blade plate fitted but the boss on the crank was slightly heavier than standard because the mower was a 460 utility
.
The compression hot sounds ok if you can still feel a fair amount of compression so you can put the decomp back in.
Just sounds like a carby issue, if the kill switch is playing up buy a new rubber for the wire.
If fuel comes out the primer bulb it means the needle and seat in the carby are not shutting off and the fuel level in the carby gets too high and fuel leakes out the primer ,fix the needle and seat so it shuts off and has a good seal when the fuel is at the right level and this will stop fuel leaking out the primer bubble.
Video below at the end shows how to test the needle and seat to see if it's sealing when closed, without a pressure tester you will need a hose connected and blow air down the fuel inlet to see if it's shutting off.
