On the back throttle assembly there is an electrical connection. It has a rubber cup on it;if you take the cup off there is a three prong female socket can someone tell me what it is used for.<br /><br />Thanks
George.... The OMC tachs have a connector that plugs in there. The three electrical sockets within that connector are: Black = Ground, Purple = 12 volts, Gray = Tachometer sender.
