Engine Info: 1987 Mercruiser, 165HP, 3.7L, 224CI<br /><br />I want to replace the coil for preventative manitance. When I recieved the coil I noticed that the coil stated "Use when external resistor".<br /><br />I reviewed the schematic for the engine and noticed there is wire that run between the positive side of the primary function of the coil and terminates at the electric choke. I am making the assumption that this wire is in place to allow current to be dumped onto the choke and protect the coil. This wire is also labeled as a resistive wire.<br /><br />Is the resistive wire running from the coil to the electric choke the External Resistor the Coil References?<br /><br />Thanks In Advance,<br />Shawn