the first link, I already looked at, it shows a compete different rx with the KT4r31s tx and I have the the directions for the esc, the esc come setup for brushed motors, thats what im using. cant find anything on binding the kt431s tx with a kr-632 rx. the 632 has no led light on it. thats how i bought the radio, was with the newer kr-632 rx. thanks for the help tho, i appreciate it.