TRY THIS TEST
connect a 40W light bulb (incandescent...not LED) across the output legs of the alt.....unloaded voltage might be 40 Vac BUT if windings have bad connections, the output voltage will be well below the 15Vac needed to forward bias the rectifier diodes...... .5 to .6 Vdc PLUS the battery voltage. if alt output is OK, the bulb should glow dimly and get brighter as RPM is increased. confirm alt output good before rectifier testing.
print from manual too small to read....but gathered you have a single phase (2 wire.....A1 and A2). If replying back also show the schematic for the alt. windings and the .3-.4 ohm winding resistance...go back to the cut crimp (very bad idea on high current applications.....solder back in place.