Hello i have a 1999 zero turn 4515k. the motor that was on it ran but wouldn't stay running. So i put a 18.5 brigs on it. i ran a teathed switch to the battery from the points. i started it and tryed to go and nothing. belts are all on and moving but the mower would not move. i don't have the two hook ups connected because i don't know what goes to what and what dose what. i looked it up and the wire diagram didn't really help. if you can help me that would be great. Thanks Dillon.