Clinician
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Post by brownk255 on Apr 26, 2012 15:28:26 GMT -6
Hi All,
Just wanted to close this problem out so everyone will know, I hate it when it's left hanging.
I replaced the stator and got about 20 vac on both the white and yellow wires. I first used the new r/r that I bought and it would not charge, I put the old r/r back on and it charges and the lights work like they are suppose to.
I now have to assume that not all r/r's are created equal or for the generic scooter. Remember we figured out that the charging circuit was on the yellow line instead of the white like the PDF showed. The original r/r has a black 4p plug while the new one had a white. Don't know if that makes a difference or not.....could be a bad "new" r/r.
FYI, the engine is a 1P57QMJ.
Finally all is well and back to riding.
Thanks again.
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Clinician
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Post by brownk255 on Apr 25, 2012 10:00:32 GMT -6
Thanks Bashan
I have several "repair" books, and none of them told me what the voltage should be and focused just on the ohms which was significantly different between each book. Looking at all the comments, combined with the books is more than confusing. I appreciate your VERY easy to follow and check 5 bullets. I did see the PDF but I didn't get the same voltage and wasn't sure if it was for my engine or not.
What I measured was 56 vac on the white wire (at a fast idle ~2k rpm) which has to be the lights on this scooter since they work great after the new r/r. This is another confusing part since the PDF shows the white wire as the charging voltage line and what I was focused on.
The yellow wire was dead, no voltage. I am now assuming that this is the charging line.
Assuming it is a bad stator and will be replacing it.
Thanks to everyone for their help!
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Clinician
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Post by brownk255 on Apr 24, 2012 19:31:45 GMT -6
Alleyoop,
I have checked and it is not charging at all when revved up to 4-5k rpm. I do have a security sys and it was drawing some power so I pulled the fuse and verified that it was not pulling any power.
What tipped me off on the not charging was I replaced the battery and the regulator and then started driving until it stopped starting with the battery, recharged and started checking, no charging.
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Clinician
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Post by brownk255 on Apr 24, 2012 19:25:53 GMT -6
Thanks Terrilee for the help. I have checked the green ground on the stator and it shows .1 ohm to scooter frame, can't get much better than that. I have not checked the grounds at the regulator and elsewhere. I did check the a/c voltage a while back and I remember that I got 45-55 vac on the yellow wire at idle but not sure if I had any on the white wire or what it was, I will recheck. One of my concerns was that I got the wrong regulator but it looks like the one that came off except that the plug is white instead of black, otherwise same 4 pin connector. Replacing the stator is a lot more work and expense than the $10 regulator so want to try and rule out everything else first. Would rather not just throw money at it like a car mechanic.  |
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Clinician
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Post by brownk255 on Apr 24, 2012 14:27:51 GMT -6
I have looked at all the threads in the Electrical Library and searched the general forum. None of the information gives a good answer and in some cases you get multiple different answers depending on what you read. Some of the info is dated and wondering if anyone had more clear cut views on how to test accurately. It is strange that the scooter runs great, and now the headlights work great but it doesn't charge the battery.
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Clinician
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Post by brownk255 on Apr 24, 2012 11:02:53 GMT -6
Hi Guys,
I have searched and not found a thread to answer my question so any help is much appreciated.
I have a 2007 150cc scooter that will not charge. It was charging before the winter and the battery developed an internal bad cell. after I replaced the battery I noticed that the headlights were not coming on except very low. I replaced the regulator/rectifier and the headlights work perfectly. However the scooter is not charging the battery.
I have ohm tested the wires from the stator and get about 7.5 ohms from each the yellow and white wires. One of the many different thoughts on testing say that the ohms should be around 4 and anything higher is a bad stator.... other troubleshooting guides don't mention this.
Question I have is, could I have received a bad regulator or is it a bad stator that needs to be replaced?
Thanks
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