One Stator wire grounded in harness, bypass = no headlights
by: gentry - Sept 15, 2017 18:21:27 GMT -5
Post by gentry on Sept 15, 2017 18:21:27 GMT -5
Scratching my head on this one. This is a 2012 150cc GY6 Scooter (HT150T-20). Was running great, then started getting battery charging issues, so I replaced the battery, still not charging. While I was troubleshooting, I crashed the engine, so I got a new one (Here) installed the new engine, figured, new stator, should solve the problem, Still not charging. So I get a new Rectifier (Here) Still not charging.
I check the stator voltages, (it's a 6 port rec, 3 wire from the stator) one out of three is way low. I test continuity, from rear ports to front ports, seems fine. Then a post in here says check for ground. And low and behold, one of the 3 stator wires is grounded.
I run a parallel wire, to use instead of the grounded wire in the harness. connect it to the stator connector and the rectifier connector. Success! The battery is now charging, showing 14v.
HOWEVER, NOW THE HEADLIGHTS DON'T WORK. taillight, turn signals are ok, just no headlights.
I put back the grounded stator wire that I had bypassed, and the headlights are WORKING again! ?
The Stator wire seems to be straight thru the harness, AFAICT, it even pulls a bit if I tug on one end.
My best guess is that the grounding failure on the stator wire is also interacting with the ground for the headlights somehow. There is a smaller CDI looking box with 3 wires going in, which when removed also disables the headlights (leaving the other lights functional). I'm not sure the purpose of this box, but none of the wires going into it yellow.
Anyone seen this one before? Any Ideas on how to troubleshoot?
Thanks for looking,
Gentry
I check the stator voltages, (it's a 6 port rec, 3 wire from the stator) one out of three is way low. I test continuity, from rear ports to front ports, seems fine. Then a post in here says check for ground. And low and behold, one of the 3 stator wires is grounded.
I run a parallel wire, to use instead of the grounded wire in the harness. connect it to the stator connector and the rectifier connector. Success! The battery is now charging, showing 14v.
HOWEVER, NOW THE HEADLIGHTS DON'T WORK. taillight, turn signals are ok, just no headlights.
I put back the grounded stator wire that I had bypassed, and the headlights are WORKING again! ?
The Stator wire seems to be straight thru the harness, AFAICT, it even pulls a bit if I tug on one end.
My best guess is that the grounding failure on the stator wire is also interacting with the ground for the headlights somehow. There is a smaller CDI looking box with 3 wires going in, which when removed also disables the headlights (leaving the other lights functional). I'm not sure the purpose of this box, but none of the wires going into it yellow.
Anyone seen this one before? Any Ideas on how to troubleshoot?
Thanks for looking,
Gentry
