Crappie Stalker, I'll look for the extra wires but I think I'm out of luck there. Especially since what I have is only 10ga.

Sparky, not sure I should take advice from an electrician who calls himself Sparky!

Seriously,
My 46 pound motor draws a hypothetical 46 amps, based on manufacture rule of thumb 1 pound of thrust takes 1 amp. They are sandbagging because it has a 40 amp fuse and never blown, and it has 10 ga wire.

Now here is gets dicey. A new 70 pound thrust 24V motor should only draw a hypothetical 1/2 amp per pound of thrust because of the doubled voltage? I'm not sure if this is right...the ampacity chart you linked to doesn't specify voltage. But it does say that 10 ga wire will carry 33-55 amps. It sounds like based on that, my 10 ga wire could carry 35 amps safely at 24V. Am I way off here? Or is it a no-brainer that I have to spend at least $75 on new wire and terminals to run for the bigger motor.

6 gauge wire seems like such overkill....when the motor itself and the male/female connectors are using 10 ga.

Joe