Did you clean the points? Are the points opening? Are those two wires without continuity going to the points?if so it's normal. Because the points are open at that time. Spinner until you have continuity.
Measure the resistance on both sides of the ht coil(it's a transformer). The whole "alternator" as you called it can't be toast, worse case scenario your ignition coil is shorted. In which case you pull the flywheel and replace it.
Wait, does the express have a cdi? If so,lol disregard. (edited)