thanks for the reply, thats what i thought- i have to wonder why Yamaha sent the source coil ground thru the lighting coil before it could get to ground , it sure does look stock ,with the braided cloth insulator on the coil to coil jumper, nonetheless, i found a NOS source coil on ebay , mine is pretty compromised,the clear sprayed on insulation has flaked off the wires in many places , and an area of winding that was hit and shorted , i suppose there is a preferred polarity in the source coil that i will want to adhere to, (stock), when installing the new one, another problem id found was the point wire needs to run alongside the cam , it did, and rubbed against it, and rubbed thru its insulation, (*probobly the biggest, or only, problem in this resurrection), grounding the point wire- i sure will have a nice spark when this is assembled- think ive had this bike 30 years