The rebuild kit may help, but if there is a damaged motor winding or rear endbell, then it won't help. We also cannot replace motor wires because of how they are wired internally on the motor. If the damage is outside of the can and about an inch away, you can usually just splice in new wire. If it is inside the can or right where the wires exit the can, then it is nearly impossible to replace the wires.
Normally we do not service HPI products, but if it is non-warranty we can help you out. We have a non-warranty replacement fee of $80.00; it includes the replacement Castle-Neu 2650 motor, shipping back to you and a new one year warranty; you will need to ship the defective motor to us first. If this is something you're interested in you can find details on the repair process at
www.castlecreations.com/support/repairs.html. Please let me know if you have any questions or concerns.
Thomas Porfert
Castle Tech Support