Two steps.
1. (For 'H' models) Remove the slotted cover on the head on the LH side of the engine. This exposes the end of the KIPS main shaft. Maybe you can see it well enough as is, or put a piece of tape, white out a spot, make some mark you can see on the nut.
Start the engine. Warm it up. Give it a flick of the throttle to @ least 6000rpm. Observe the rotation of the shaft.
Now you know the actuator shaft is activating the main shaft.
2. Take off the pipe. Looking up into the cylinder, manually activate the KIPS via the nut under that slotted cover you just were looking at. Observe the main exhaust valve moving up with activation and return, and the two subport drums on either side operating in sync both on activation and return. The drums rotate such that they open the exhaust to the main port when activated, and route the exhaust to the helmholtz resonator (the cavity with the KIPS cover on the LH side) when 'at rest'.
Manual activation should be smooth and relatively easy. There isn't any big wrenching required. When released, the shaft should return to an 'at rest' position...not stick open.
How's that?
An '03 and you're concerned about the KIPS operation? A bit early to worry about that, isn't it?