Continuing problem with hot wires By hag45 (Read 481 times)

[hag45]

Hope this will not be to long winded for this form but need to go back to beginning.  Battery went dead and did the stupid thing of jumping it with a car and really got stupid started the car.  Then discovered the plastic connection between the stator and rectifier got fried i mean really fried this is the one that has the 3 yellow wires and 3 others.  With some advise from another form decided i needed to replace rectifier did that and things seemed to be ok until i felt the the ground wire coming off the rectifier and hot as it could be again advise told me to then check all wires for short and found not a real good ground wire to frame connection seem to have a poor connection took care of that but no help.  Now what i am finding is the two of the three wires out of the stator get hot along with the ground wire out of the rectifier going to the main ground wire still getting hot and two of the yellow wires out of the rectifier are warm to hot.  Every thing works fan, engine starts, lights, front and rear i mean everything remote start, alarm.  Checked everything up front do  not see any broken or pinched wires.  One thing i have noticed that the main ground wire that runs from front to back only is grounded to the fram by one off shoot smaller ground wire but that is how it was before the problem.  came up and scooter worked well and still does.   thanks in advance

[JR]

hag45




More than likely you fried the insulation on the wires going into the stator? This is a 18-coil 3-phase stator. Now do two tests, first start the scooter and check the DC voltage on the battery, I presume you charged it/replaced it? At idle read the voltage and then rev it up and let's see if it's charging? Should go as high as even 15volts.

If it does then you need to inspect the 3 yellow wires and the ground to the stator and make sure they didn't melt together or are harmed, may even have to open the engine. If it isn't charging then time to do some tests.

JR

[hag45]

jr I did the test on the charging, battery was at 1250 at start then managed to go to 1300 now this is with the lights off i am waiting to replace the baubles. When i did that test after charging the battery fully i did at one point get it up to 1400 and beyond a bit. I did check the wires to the stator and the wires all looked good but they did melt at the plastic connector when that got fried but i did cut the part out and it seems that all the way from that point to the point where they enter the stator they feel ply-able and not burned. Also i did not mention in the beginning post i did replace the rectifier which you helped me on.

[JR]

Doesn't sound good. Need to disconnect the plug with the 3 yellow wires from the stator, set your volt meter on 200Vac and let's test them. With the scooter idling we should get 50 to 60Vac on each phase. Now when I say test the wires and each phase this is what I mean. DO NOT test each wire to ground, readings will be wrong.

Doesn't matter which wire/s you test first but all 3 must be tested and readings must be equal.

Check voltage from wires:

1 to 2
1 to 3
2 to 3

You can number them if you want too. Check them at idle and revved up.

JR

[hag45]

Jr I did the test on the stator wires and found at idle 36 and at rev it was 69. And then took the stator cover off and found two burnt coiles i will Try to send a :picture

[ellpee]

Jun 17, 2014 15:37:12 GMT -6 JR said:

Doesn't sound good. Need to disconnect the plug with the 3 yellow wires from the stator, set your volt meter on 200Vac and let's test them. With the scooter idling we should get 50 to 60Vac on each phase. Now when I say test the wires and each phase this is what I mean. DO NOT test each wire to ground, readings will be wrong.

Doesn't matter which wire/s you test first but all 3 must be tested and readings must be equal.

Check voltage from wires:

1 to 2
1 to 3
2 to 3

You can number them if you want too. Check them at idle and revved up.

JR

Chiming in on behalf of those nearly as clueless as me, testing that way on my 2011 Roketa gave me around 20-25 at idle and something up in the 70 vicinity at typical street cruise rpm, and I was told that's okay. So for the sake of this poster, and me, and anyone else who finds himself in the situation of having to test his stator, will the real answer please stand up? I can handle broad answers like "anything from 20 to 60 at idle" and "anything from 60 to 130 at high rpm," but since buying and replacing a stator ain't no small deal, I'd really like to eliminate as much ambiguity as possible on this subject. What is a GOOD idle and rpm reading? And if it varies depending on the scoot and the stator, how and why?

[hag45]

how do you send pictures on this form thanks

[JR]

Jun 17, 2014 18:05:42 GMT -6 hag45 said:

how do you send pictures on this form thanks

You need to upload your photos on a image host like Photobucket and I've fixed this forum so when you post a direct link and then hit Create Post photo will appear.

The other way is to click on the menu bar icon  and a pop up will appear and paste the "direct" url link in that box and the photo will appear.

[JR]

Jun 17, 2014 17:34:57 GMT -6 ellpee said:

Jun 17, 2014 15:37:12 GMT -6 JR said:

Doesn't sound good. Need to disconnect the plug with the 3 yellow wires from the stator, set your volt meter on 200Vac and let's test them. With the scooter idling we should get 50 to 60Vac on each phase. Now when I say test the wires and each phase this is what I mean. DO NOT test each wire to ground, readings will be wrong.

Doesn't matter which wire/s you test first but all 3 must be tested and readings must be equal.

Check voltage from wires:

1 to 2
1 to 3
2 to 3

You can number them if you want too. Check them at idle and revved up.

JR

Chiming in on behalf of those nearly as clueless as me, testing that way on my 2011 Roketa gave me around 20-25 at idle and something up in the 70 vicinity at typical street cruise rpm, and I was told that's okay. So for the sake of this poster, and me, and anyone else who finds himself in the situation of having to test his stator, will the real answer please stand up? I can handle broad answers like "anything from 20 to 60 at idle" and "anything from 60 to 130 at high rpm," but since buying and replacing a stator ain't no small deal, I'd really like to eliminate as much ambiguity as possible on this subject. What is a GOOD idle and rpm reading? And if it varies depending on the scoot and the stator, how and why?

All depends on what engine/scooter? If the scooter you tested is the vertical engine then that's pretty close, main thing Ellpee is that all 3 readings are very close to equal.

On my 250B the idle voltage is around 40 to 50 and revved to 5k it'll easily hit 90Vac but the linhai stator is stouter than the vertical engine.

JR

[JR]

Jun 17, 2014 17:08:08 GMT -6 hag45 said:

Jr I did the test on the stator wires and found at idle 36 and at rev it was 69. And then took the stator cover off and found two burnt coiles i will Try to send a :picture

2 burnt coils = hot wires.

JR

[hag45]

Man another reason to be a member of this form thanks jr do you carry stators for this scooter it is the jcl with the linhia engine 2007 257cc as much as i hate to spend more money on this scooter i am going to do it to at least get my money back out of it. Replaced it already with a 2005 honda reflex which you and others have talked about what a difference in quality you can tell just by putting them next to each other.

[hag45]

one other thing will replacing the stator improve my dc output