Re: Testing Tool? Neon tester.
Rat... You don't say what engine you have but I will assume it is an older OMC outboard which incorporates a smaller three (3) wire rectifier. If so, you can check the stator and rectifier with a simple ohm meter.<br /><br />The stator yellow wires.... Ohm meter on high ohms. You should obtain a reading between them but not between either of them and ground. This would indicate the stator is fine.<br /><br />Rectifier test is as follows:<br /><br />(Small Rectifier Test)<br />(J. Reeves)<br /> <br />Remove the rectifier wires from the terminal block. Using a ohm meter, connect the black lead of the ohm meter to the rectifier base (ground), then one by one, connect the red lead of the ohm meter to the yellow, yellow/gray, then the red wire (some rectifiers may also have a yellow/blue wire. If so connect to that also). Now, reverse the ohm meter leads and check those same wires again. You should get a reading in one direction, and none at all in the other direction. <br /><br />Now, connect the black lead of the ohm meter to the red wire. One by one, connect the red lead of the ohm meter to the yellow, yellow/gray, and if present, the yellow/blue wire. Then reverse the leads, checking the wires again. Once more, you should get a reading in one direction and none in the other. <br /><br />Note that the reading obtained from the red rectifier wire will be lower then what is obtained from the other wires. <br /><br />Any deviation from the "Reading", "No Reading" as above indicates a faulty rectifier.
