1986 85hp force 856X6L no spark

Joe217

Recruit
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May 31, 2025
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1
1986 85hp force 856X6L no spark. How to test the stator? There is one set of yellow-blue going to the pack. When i set the meter leads from yellow to blue i get a reading of 704ohms . How should i test the one that has only a yellow wire? The stator is a prestolite FCC 3007.Screenshot 2025-05-30 234346.png
 
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Nordin

Commander
Joined
Jun 12, 2010
Messages
2,601
Check at outboardignitiondotcom, they have a troubleshoot chart for the ignition system.
You can check out the resistance with a VOM, but best is to have a DVA meter or a DVA adapter with the VOM and check the output voltage from the stator.
 

jerryjerry05

Supreme Mariner
Joined
May 7, 2008
Messages
18,096
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
 
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