As Stated, the motor resistance doesn't seem to be out of range. I would make sure you don't have a motor lead grounding out to the chassis. At start up the yel is + Voltage so if the white wire is touching chassis you complete the path. Can be a pinch, nick in wire, or stray strands at the motor terminal touching can.
Joe, G is not really a HD board, they just heat sink the rectifier directly to the chassis and use a larger flash back diode also heat sunk to chassis for some models. G