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Overcharging problem?

M

Murkila1

New member
My 90 Hp 2 stroke serial no 09998441 had a starter solenoid problem about 3 weeks ago, I replaced the solenoid. Last week when I turned off the engine I could hear the starter running, when I disconnected the battery obviously it stopped but on reconnecting it, the engine started without turning the key. I took the boat back to the slip and for various reasons had to leave it for about an hour with the battery disconnected. When I came back to it the battery was dead and was very warm. I replaced the battery and the solenoid again and then checked voltage to the battery which was hitting 16volts at about 3000 rpm so replaced the regulator. The battery voltage is still getting to about 15v at 3000rpm+, has anyone any idea why the voltage would be running this high. I'm thinking the solenoid issues have been as a result of excess voltage and don't want to be replacing another solenoid or indeed battery. Thanks
 
Should also add the yellow wires on the regulator were melted at the connectors when I went to change them so cut them off and connected them directly with heated sleeves over the top when installing the new regulator
 
The number makes it a '96 and I think you need to check your stator and your ignition switch.Also check for a battery wire grounding,'cause if you disconnected the battery and it still drained,there is got to be a short somewhere.Did you disconnect the neg- or the pos+?
 
I think the battery dying was down to overcharging and the solenoid has been replaced as it was fused open, l'm assuming due to high voltage but I'm open to correction so I think the ignition is ok as its operating normally with the new solenoid. How do I check the stator? Would a bad stator send out too much voltage for the new regulator to handle?
 
If the engine started without the key being turned,there has to be a fault in the ignition switch or a wire grounding somewhere.It could be sending a continuous current to the solenoid causing the overheat and starting problem.
To test the stator,between the yellow wires you should have continuity,between the blue and red with meter set 1000,3.6-4.2. Blue is the high speed side.
 
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