Is your transmitter Mode 1 or Mode 2? Your ratchet stick is on the right but if the TX is still set for Mode 2, the left hand stick up/down is your throttle channel, into which your brushless ESC is plugged. Try powering up the setup with the left hand stick in the fully down position, or change the ESC plug on the RX to the ELEV position, and power up with the right-hand stick fully down.