Ok, I have a Toro 30498 (48" T2 walk-behind). Lost a cylinder in my Kawasaki FH580v. Replaced motor with a 20hp B/S Vantage. Unsure about where each of the 3 wires goes. I assume they are for kill switch, fuel pump, alternator? The mower's wires are purple, red, and white. I have the wiring diagram for the motor, but I'm not having any success tracking down which wire is which from the mower... Any help is appreciated.