Starter load testing is a little beyond the ability of most home garage mechanics. If the starter is out you can hook it up and watch it spin. An indication it is good and the amount of "kick" might give you some bit of confidence but the real test is a fresh battery and see how it cranks.
With the plugs out of the bike, make sure the plug wires are grounded. A good starter should spin up pretty fast.
Never memorize something you can look up.