Voltage regulator replacement questions. 2001 50 hp 2 stroke

[Bigzee44]

I'm very amature when it come to working on I utboards but this whole boat has been a project so I have been trying to do everything myself. Just keep that in mind if anybody responds.

About a month ago I noticed my starting battery was bubbling, had it checked out and they said it was good, just overcharged. I chalked it up to an old onboard charger. A few weeks later I was running across the lake when my tach stopped working. I stopped and had a small fire under the hood and saw that a clump of wires melted together. Limped back in on the kicker. After some research and investigation it looked like the voltage regulator was toast, burnt and oozing goo. I replace the regulator and all burnt wires/connectors. I checked the DCV at the battery with everything off and got 12.7 then it goes up to 13.7 when put to the charger and under idle. The weird thing is that I checked voltage at the solinoid and it jumps all over the place. Is this normal? The tach seems to be working again but I'm worried that the stator could be the original problem.

Any guidance would be great.

Thanks,
zack

 

[fastjeff]

Was your meter on AC or DC? If DC, it sounds like the rectifier is still not right.

Jeff

 

[Bigzee44]

Yeah it was DC. Is that still to low. My main concern is that it was jumping around.

 

[fastjeff]

If DC, it should not be jumping around. I suspect your rectifier is bad.


Jeff

 

[timguy]

A rectifier allows current to pass through in one direction and not the other, it can be tested with a multimeter. This action converts AC to DC in order to power/charge your battery. Your output voltage, while connected to the battery looks very good. Your stator must also be good. Keep a close eye on that battery, it could be trouble down the road.

 

[papyson]

first of all...do not run engine with the external charger trying to charge the battery...one or the other but not both..

you say you are reading good voltage on the battery and voltage is jumping around at the solenoid..they should read the same..is the negative lead on your meter connected to the same place when you take these readings?are you talking about the input terminal on the solenoid?

i would replace the battery for troubleshooting purposes and then verify what you are seeing on the meter..if it is as stated i would suspect wiring...either a wiring error or the original problem that burned up the regulator and wiring is still there...the jumping around problem is wrong...