I wanted to test the output power of my Moped's magento. It's a 6 volt system therefore the Voltometer should read 6 volts. I hooked one wire up the the cable (the one thats hooked up to the sprakplug) and I grounded the other one up the the Engine Block. My brother pedeled on the bike and it maxed out no more than 0.5 volts. Am I measuring the voltage correctly? Because if you think about it, the wire keeps producing surges of electricity and Im wondering, because its a surge of electricity not a flow(Like a battery) maybe I'm niot testing it right.