I am having a problem. I have no spark. I don´t know if my coil is bad or not. I have 4.6 volts coming from my magneto going into the coil. Is that enough power to supply spark from the coil or not. I don´t believe my coil is shorted. I have 5 ohms of resistance from the power in to the power out. Does that mean its good. Someone please let me know. Thank you.