no bec in esc

Hey i just finished my first tricopter, mountet the KK2 board connected the ESC in the order that i understod Left ESC = Channel 1 Right ESC = Channel 2 Rear ESC = Channel 3 YAW servo = Channel 4 But i have the following isues / Problems 1. Motor 1(Left) Spins up at low throttle,,, if i giv...