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1996 MERC 90 HP 2 STROKE

hds

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I have a 90 HP merc and the oi

I have a 90 HP merc and the oil sensor warning buzzer won't go off. I did a test which indicated the warning module was bad. I replaced it ($100) and it still goes off. I disconnected the purple wire to turn the alarm off and added enough oil to the gas tank to run 50:1 and took it to the lake. It smoked big time and after I got home I checked the oil tank and it had gone down. I took it to the lake again and the plugs fouled and the oil level had gone down again. Any suggestions.
 
purple wire is your key on 12v

purple wire is your key on 12v buzzer cannot buzz without power plug back in try unplugging blue wires coming from oil tank SENSOR to modual horn will prob go off.ohm the sensor . most likely bad
 
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