http://www.outboardignition.com/.
The Prestolite stator is probably the OEM
No fire on any cylinder: 1. Check the resistance from each blue to the yellow wires, you should read approximately 300 ohms. 2. Check the resistance from each blue and yellow wires to engine ground, you should read open circuit (Just like the leads were not touching anything). 3. Check DVA (Peak voltage) from blue to the yellow wires, you should read at least 180V. 4. Disconnect the stator wires and check the DVA (Peak voltage) from each blue and yellow wire to engine ground, you should read no voltage or extremely low voltage. No fire on one cylinder: 1. Check the resistance from the blue to the yellow wire on the pack not firing, you should read approximately 300 ohms. If the resistance is not right, check the other set of wires. If the other set is ok, gently pull on the wires close to the connector If the insulation stretches, the wire is broken inside the insulation and a new terminal needs to be put on. 2. Check DVA (Peak voltage) from the blue to the yellow wire, you should read at least 180V. NO FIRE ON TWO CYLINDERS: If two cylinders from the same CD unit will not fire, the problem is usually in the stator. Test per no fire any cylinder above. If the #1 and #3 cylinders are not firing, disconnect the Brown/Yellow wire from the pack #1 and retest. If you now get fire on #3, replace the #1 pack. If still no fire on #3, disconnect the Brown/Yellow wire from the pack #2 and retest. If you now get fire on #1, replace the #2 pack. If the #2 and #4 cylinders are not firing, disconnect the Brown/Blue wire from the pack #1 and retest. If you now get fire on #4, replace the #1 pack. If still no fire on #4, disconnect the Brown/Blue wire from the pack #2 and retest. If you now get fire on #2, replace the #2 pack