• This site contains eBay affiliate links for which Sea-Doo Forum may be compensated.

12v low warning light comes on

Status
Not open for further replies.

67vwbus

New Member
Hello all. I am a new member. I know this thread has been beat up a bit but trying to figure this out. I recently has a problem with my 2001 rxdi with 12v low and limp mode. I replaced a new battery. Took it back out and still the same problem. I bought and replaced the rectifier with a new HD rectifier. Started it back up on the trailer and got a maintenance light. Took it out to San Diego bay ran good with no lights for 10 minutes. Then the maintenance light came on. Tried to reset using the set/mode buttons if that works. 5 minutes later, 12v low warning comes on with maintenance. If a new battery and rectifier were installed where do I go from here? I haven't checked yet with a meter but I will on Monday. Any advice? I appreciate any words of wisdom.
 
I'm thinking the stator. The stator is what makes the volts, the rectifier/regulator is what feeds the electrical system the correct volts.

Let someone that REALLY knows 2-strokes jump in, but I would think I am correct.

The fact that it comes and goes, I doubt you have a fuse or wire issue..
 
I was hoping that it didn't come down to that. I am a highly skilled auto repair mechanic. Also worked on my two stroke banshee. Had to replace the stator, pick up coil, and regulator. Anyways, how involved is it to get to the stator? Also like I said, I still need to check voltage and ohms with my meter. Hope my new rectifier is faulty. The light only goes on when the engine is given any throttle. Hope that helps
 
Crank the ski up with a volt meter on the battery. If you are reading anything less than 13.5vdc or anything over 14vdc then your new rectifier is bad. Have you had the new battery load tested?
 
What would it tell me if the rectifier was good and still having the 12v ills issue? I haven't had the new battery load tested. It cranks over very strong. All day long till the ski finally drew out all the juice that was left in the battery. The ski bogged down and turned off. Got it towed back to the dock put it on the trailer tried to start it again and fired right back up with the 12v low right away
 
Last edited by a moderator:
While the ski is running approx. 4000rpms the output to the battery will be 13.5 to 14.5vdc anything more or less is cause to believe your rectifier is bad. Voltage too high is just as bad or worse than voltage that is to low. With voltage too high, the AC voltage from the mag is not being converted to DC and this can cause big problems.
 
While the ski is running approx. 4000rpms the output to the battery will be 13.5 to 14.5vdc anything more or less is cause to believe your rectifier is bad. Voltage too high is just as bad or worse than voltage that is to low. With voltage too high, the AC voltage from the mag is not being converted to DC and this can cause big problems.

He did install a new rectifier, but it certainly could be bad.

That said, as it is the MUCH easier part to change, I would do so before I tore open the engine. But I am pretty certain there is a test that can be done on the stator. If someone does not answer that, I will find out..
 
He did install a new rectifier, but it certainly could be bad.

That said, as it is the MUCH easier part to change, I would do so before I tore open the engine. But I am pretty certain there is a test that can be done on the stator. If someone does not answer that, I will find out..

That happened with mine. It was bad and I bought a new one, and it was bad also, so I returned it and got another new one and it has worked fine since. I was getting something like 22v with the bad rectifier, and the battery kept draining once I would run it for 15 or 20 minutes.
 
So the battery and rectifier have one ride on them. Probably 2 hours worth of ride tone. The next step will be to check voltage at battery with the engine running and revved up. Next step I will do is check Ohms with the yellow wires coming from the stator going to the rectifier. Just trying to figure out where to start next.
 
DI stators are very reliable. I would suspect a bad new rectifier before the stator. I've seen new rectifiers fail in 5 minutes or not work at all. I would also check compression of the engine just to verify health.
 
Ok. I have some checking to
Do. I was also reading in the manual that a rectifier can also blow a fuse in the back electrical box. Could it be that? I pull a connector out but where is the fuse?
 
The fuses are an easy check to rule out. Just pop the rear cover. I think there are 2 fuses in there. They'll be in holders like I have pictured.



attachment.php



attachment.php



attachment.php


Sent from my SGH-T889 using Tapatalk
 

Attachments

  • uploadfromtaptalk1429461399109.jpg
    uploadfromtaptalk1429461399109.jpg
    119.1 KB · Views: 161
  • uploadfromtaptalk1429461416497.jpg
    uploadfromtaptalk1429461416497.jpg
    103 KB · Views: 158
  • uploadfromtaptalk1429461429993.jpg
    uploadfromtaptalk1429461429993.jpg
    104.5 KB · Views: 159
Ok so I checked the battery. 12.5v. StarteD thE engine and still 12.5v. ReVed the engine to rev limiter and sTill read 12.5v. I unplugged the rectifier connector With the three yellow wires going to the rectifier to test the magneto. Checked with key plugged in With volt meter under volts and ohm and the voltage jumped all around from 100-250v and ohms on all three read zero. Magneto ok? Was just thinking of getting another cheaper rectifier for $25. Also need to take off the exhaust manifold. There is a major water leak at the bottom water drain fitting
 
There are some things that our skis/boats just don't like to be aftermarket. Starters and Rectifiers are two of them,,,
 
Status
Not open for further replies.
Back
Top