Missing charging on RXT aS260 RS 2011

[Randersen]

Hi!

Anybody have a clue about seadoo charging system

I have lost the charging and I know that this system isn't working. I tried to change the rectifiers but that didn't work.
Have also checked the stator. When I ohm out 1-2, 1-3, 2-3 I get infinity ohms (wire break?) on each winding. Think i have read earlier that it should be around 0.5 ohms. I have done the measurement on the connector down on the engine (3 yellow wires).
I suspect that the stator is broken. Is this the right conclusion ?
If the stator is broken, is it possible to change the stator with the engine in the scooter, or should this be taken out first?



Ronny

 

[red2blue]

Okay....uhm...we need to start at the beginning.

How do you know the charging system isn't working?

Have you load tested the battery while starting?

 

[Randersen]

Hi,
The first signal that there was something wrong with the charging, was low 12 v error.
Did a recharge of the battery, and it was running fine for some hours. Then the 12 V error message appears again In the display.
This time, we charged the battery, and did a voltage measurement on the rectifier and battery while we started up the engine. I can’t remember the exact number but it dropped from above 12 volt to around 11 volt. After this we replaced the rectifier and did the ohms measurements as mentioned. Have also checked and measured the wires from the rectifier and down to the connector for the stator this is OK it shows 0 ohms on all tree yellow wires.


Ronny

 

[red2blue]

With the battery on the meter it shows what? As soon as it starts the meter shows? With motor running does the voltage do a slow drop or...?

The reason I'm asking...stators do go out but it's not a common problem. More likely a bad cell in the battery or a poor connection somewhere.

 

[Randersen]

I did the same test on the battery and on the rectifier and it show she same values.
Can’t remember the exact number but it dropped from above 12 volt to around 11 volt in the same time as i starts the engine.
Do you know what value i should get when i mesure the stator? When I ohm out 1-2, 1-3, 2-3 I get infinity ohms (wire break?) on each winding.

 

[red2blue]

Nope, sorry. Never had to go any farther than bad ground go solenoid or fusebox.

 

[Kris69]

Voltage will always drop whilst starting because of the large current being drawn.
From what you have described in your testing the stator is dead. It is rare for them to fail ( i thought mine had on a different jetski) but to have all 3 wires show no continuity at all points to the stator being destroyed or the connector broken/disconnected . Try testing between each yellow wire and an earth point on the motor abd let us know what you get.

 

[Randersen]

OK. thanks for the reply.
I will do the mesurements between each yellow wire and earth point, but it will not be before april 8 that i have the posibility to do this.
I will post the result when i have it.


Ronny

 

[Randersen]

Get infinity ohm between all yellow wires and earth.

 

[Sea Dood]

PTO cover needs to come off, and take a look why you have no continuity between yellow wires. It is possible to take off the PTO cover while the engine is in the ski, but really difficult, and even more difficult putting it back on. You have to take out everything behind the engine and raise it from the mounts, so once you have gone this far, it just makes more sense to pull the engine as it only takes a few more minutes to pull it out of the engine, and it will be much easier working on it out of the ski.

 

[Kris69]

To have them all open circuit is odd as it means they are all broken at the stator or the plug. Can you post some photos when it is apart?

 

[Randersen]

Found the error.
All three yellow wires were corroded in the connection point off the stator.
Have to change the stator.

 

[Randersen]

Picture after we found the error.

 

[Kris69]

If you are handy with a soldering iron you can solder them back on provided the corosion isn't to far up the wire strands and they are long enough. Cut the coroded strands back, strip the insulation back, tin the cable. On the stator, scrape some enamel off, tin it then solder each wire to tails off the stator.