Recently aquired what I believe is a 70's vintage MF10. It has the Tecumseh HH100 engine with belt driven starter, delco voltage regulator,starter solinoid, magneto style coil, and 3 postion ignition switch. I need a wiring diagram. It starts properly but when I try to shut it off with the ignition switch it continues to run. It has an unattached hot wire coming from the switch when the switch is in the off position. When the switch is in the run position the unattached hot wire is dead. The wiring diagrams I have seen don't show this type of set up. Thanks in Advance.