Viper motor speed lower in one direction

[Thomaskjosnes]

Hi,

I am trying to use my pypilot with a viper motor.

I have opened the motor and found the two wires going to the motor itself. All other wires are left alone. As i reverse the polarity, the motor turns the opposite way, but seems to go at much lower speed that way. How is this possible when I bypass all the electronics? What can I do, and does it matter for controlling the boat?


Best regards
Thomas