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joseph m. hahnl
07-08-2009, 09:33 AM
I'm having a problem with no spark in my 97 Merc 25.
I did some volt checking. and there seems to be voltage coming from the stator to the switch box. but no volts going to the green and white wires at the 2nd coil. I tried disconnecting the harness to see if the kill switch or ignition switch was the problem still nothing. it started acting up out of the blue yesterday. This morning after sitting over night it fired right up for about thirty seconds then it quit and doesn't seem to have spark. When I unplug the control harness do I need to do any thing else to by pass the contol box and ignition switch? any info would be a help :angel:

JOE

fogducker III
07-08-2009, 12:06 PM
If the problem is intermitent I suggest a bad coil or stator, if you can "borrow" a good coil I would check that first, or swap the two coils and see if you get spark at the plugs, hope it is just coil, less $$ then the stator....good luck.