No spark on a children's ATV with a 139FM* or 152FM* engine. Replace the generator stator.
The spark on my teenager's 125cc ATV has disappeared.
You can also write to us at https://t.me/Zelmoto, we'll try to help.
First, we check the
Commutator (CDI unit) 139FMA, 147FMH, 152FMI, ATV 110-125cc
https://zel-moto.ru/catalog/zapchasti...
Then check for spark, and then we'll look at the
Generator stator (6 cat.) 139 FMB, 147FMH, 152FMI (this is what we actually did in the video)
https://zel-moto.ru/catalog/zapchasti...
If this doesn't work or you find another cause, please let us know. in the comments.