ATR G4 GY6 Engine Swap Harness - Honda Ruckus ATR plug and play GY6 engine harness will eliminate the need to fuzz around with wiring your engine swaps! Reduce the chances of errors and problems. Pre-labeled and ready to go! No wire modification that will result in wire color changes or jumps, just a specific color all the way through to where it needs to be. This will greatly reduce the chances of errors that may occur during modifying the OEM harness or a GY6 donor harness. he Honda Ruckus factory controls will plug directly into this harness, all functions of the controls will be usable like OEM!