1975 evinrude 115hp charging voltage problems

[dcrosby119]

I have a 1975 evinrude 115 hp with negative voltage readings on the positive and negative battery terminals at the solenoid. I bought the motor used and decided to change the ignition components and start out with new components. New stator, powerpack, trigger, rectifier, coils, fuel pump, cleaned carbs, and spark plugs. Motor ran excellent for 5 outtings and then developed a high speed miss above 3800 rpms. I checked the dc voltage at the solenoid and have negative values from 0 to 1800. I have never encountered this problem and need some help. Thanks.

[boats.net]

Don't know how that would be possible unless battery cables are backwards or battery charged up backwards, recheck all wire connections.

[dcrosby119]

I found the problem. A wire was shorted and connected to the wrong terminal on the engine wiring buss.... A hard problem to find!!!!!