From the video" "I haven't read the manual....". Why not?
The manual shows how to adjust the clutch. Re-attach the cable and loosen the lock-nut on the BOTTOM of the clutch cover. Adjust the threaded rod until the two dots line up.
BTW, you probably won't be able to move that lever by hand and engage/dis-engage the clutch. You need the leverage that the lever and cable provides. Those springs are pretty strong.
One other thing: When the cover was off, did you actuate the lever by hand? There is a spring and an arm or lifter in there that presses on the clutch pushrod (probably what you're referring to as "the weird magnetic pin thing "). If that spring gets behind the lifter arm, the mechanism won't work properly. Kinda hard to describe....
You must have the cable hooked up to adjust the clutch on the side cover. Try setting the adjustment nuts on the cable in the middle of thei range, read the procedure in the manual and try again.