The wire that is already soldered onto the motor looks like 16 guage to me. According to
Belden's page 16 awg wire can only carry 26 amps with 105 degree C insulation. Even with 200 degree C insulation, it's only 35 amps. And yet, we have a 40 amp breaker on it. And now, if you look at Ensil's
solder melting point page you will see that many types of solder melt at around 200 degree C or below.
Because of this, I'm worried that more teams will experience their wires desoldering. I really hope that there is a flaw in my logic, and that someone more experience then me will point it out.