Blade

Replaced the regulator rectifier, redid all of the connections. Took the boat out on the weekend, was reading just above 14v at the batteries. Will keep an eye on the connections to see if they show signs of excess heat.

I re did the tests on the regulator rectifier When trying to forward bias the diodes across both circuits I go a 0 reading so it seems like the rectifier is not allowing anything to pass through. When I touched took the reading from the yellow wire (would normally be connected to the stator receiving AC current) to the earth of the regulator rectifier I got a 2.9v reading, this makes me think that there is a short (It just seems odd that the unit would allow AC current to pass through the earth) This only occurred on one of the circuits i.e the 2nd yellow wire to earth did not allow any voltage to pass. I also did an OHM test and the reading was not stable it started high and dropped steadily It seems to me that the regulator rectifier is the issue, or am I doing something wrong?

Did a battery check on both batteries and they are both in good condition.

The empty wallet is what I am trying to avoid, it's an old motor so I can expect things to break every now and then but this is easier to diagnose on the mechanical side of things vs the electrical. Based on what I can see in the service manual and online the rectifier is within the allowed limits. The tests I did with the stator still installed but disconnected all seem to be in spec too. Noted all tests were done with the batteries disconnected so there is no way there is interference from the batteries. This leaves me to think it could be either a bad battery/ batteries which places extra load on the system as it is trying to charge a bad battery. Or It is a bad connection. I will take the batteries to be tested, if they come back good then I will re run the tests on the stator and rectifier to be 100% sure.

I have been doing some further reading based on what I have seen online there are two more potential causes. 1. Bad battery/ batteries 2. Bad connections The last time I checked the connections they seemed okay all I did then was add some dielectric grease nothing else looked to be an issue. I will take the batteries for testing.

Thanks @JonD I have been told that previously as a result I always ensure the key is in the off position before I switch the batteries on, so I am confident that the burnt wires are as a result of something else.

Hello Raiders, I am seeking some advise from relating to some electrical diagnosis. Problem statement: Motor is a 2001 3 cyl 90hp 2 stroke Mercury When I did a visual inspection under the cowling I noticed that three wires have been getting hot to the point that the connectors melted. X2 yellow and X1 Red wire had burnt the others showed no sign of heat. Potential causes: Based on an online search the most likely issues are either the regulator rectifier or the stator. I have done a diode test on the regulator rectifier voltage flowed in the correct direction with an OHM reading of 000.2 OHMS The Grey wire to red wire registered a higher output. I then did a test on the stator results were (note the multimeter has 000.2 OHMS reading when the probes are touched as such this must be deducted from the below readings) Yellow to yellow = 000.4 OHMS White and green to Green = 0.668 KILOOHMS I checked the AC voltage output (yellow wires) with the motor running, the readings were bouncing around 23-24v the voltmeter then flashed overload. Advise needed: The thing that has me concerned is the AC voltage check on the stator with the voltmeter registering a fault, and the higher reading on the grey to red wire reading on the rectifier. I have tried to look online to see if these readings are in range, but the documents are too technical for me, I am hoping that there is a raider that can advise me on this. Thanks in advance.

Hi Raiders, I am looking for feedback from any Raiders who have the Lowrance HDS Live and are using it for offshore fishing in water ranging from 50m to 150m. If you can let me know what transducer you are running, share any screenshots you may have and any issues you have had. Thanks in advance Blade.

Hi Raiders, Weather permitting I will be going to Broughton Island for a 2 day fishing trip mid Dec. I am staying on the island and will have my boat. I am targeting kings and snapper, as a bonus if the water is warm and blue and conditions allow maybe getting to the FAD for a Dollie. I am looking for some general direction on where to look for bait, kings and snapper or any reports from the FADs. If there are any Raiders willing to share some local knowledge please send me a message or reply to this thread. Thanks in advance

Thanks all. It is a 5.5m Ali boat. Sounds like something I should not attempt solo.

Hi Raiders, Planning to fish around the Belambi area. In terms of putting the boat in and retrieving it, is it possible to do this solo at Belambi? I don't have a drive on drive off trailer, I use a launch rope.

Yup North of Wollongong

Thanks, I am hoping a raider can confirm of these co ords are correct.

Hi Raiders, Planning on fishing a bit further south than usual. I have heard that bandit reef is a good place to start, is anyone able to share the co ordinates for bandits reef or suggest any other spots in that area. Thanks in advance

Thanks @JonD really appreciate the detailed response. I have a Furuno Gp1971f which shops with CMAP 4d,do you know how the CMAP compare to the Platinum version of Navionics, doea CMAP offer a reveal product Thanks