I am trying to figure out why the ESC-to-motor wires are so hot when everything else is only warm. By warm, I mean the batteries are right around 100F, motor end-bell is about 110F (the motor shaft at the end-bell is 125F) and the ESC is 90F. I'm running in the summer with 85 to 90F air temps. Surface water temp, near shore where I can measure it, is 80F. The motor wires I can barely touch. Nothing has desoldered ... yet and the ESC-to-motor connectors are tight.

ESC: OSE Raider 150A with timing at 15*
Motor: Leopard 4082 1250KV Y-wind w/water jacket and I just used the connectors that came on both from OSE.
Batteries: RoaringTop 3s 55C, 6500mAh wired together for 6S
Prop: Octura x447 sharpened and balanced (bought it that way from OSE)
Boat: Joysway Invincible Razor, 37" long x 10" wide, almost 8lbs with batteries

In the spring, when I first built and ran the boat and the air and water temps were lower, everything was cool or warm to the touch and all components stayed below 90F.

Any help is appreciated. Am I over-propped? Should I reduce the timing? I figured the batteries or motor would be hotter if I was over-propped.