New Rider
Currently Offline
Posts: 2 
Likes: 0
Joined: Jun 10, 2016 10:26:41 GMT -5
|
Post by jaxbch on Jun 10, 2016 10:40:45 GMT -5
My 50cc Taizhou Zhongneng scooter won't start when hot with the electric starter. It starts fine when cold and starts every time with the foot starter when hot. I replaced the stator a month ago and the problem seemed to get better but is now the same as before. Any ideas about what to check next?
|
|
|
|
Post by tortoise on Jun 10, 2016 12:32:07 GMT -5
|
|
New Rider
Currently Offline
Posts: 2
Likes: 0
Joined: Jun 10, 2016 10:26:41 GMT -5
|
Post by jaxbch on Jun 10, 2016 12:55:44 GMT -5
Yes to QMB139 4-stroke. Fuel and Compression must be OK because it starts and runs fine when cold or when started with the kick starter. I assume there's a spark issue when hot and trying to start with electric starter (just don't know what could cause this). Not an intermittent problem. It's an every time thing.
|
|
|
|
Post by JerryScript on Jun 10, 2016 13:16:31 GMT -5
If it starts cold on electric, and hot on kickstart, it's most likely valves out of adjustment, but could be a loose connection or thermal short. Valves would be my first check.
As for loose connections, I once had a plug boot that became loose (never buy those "performance" coils, they have a spring clip inside that can come out without noticing), and it would start with the kickstart, but not electric. I can only assume that the kicking moved the scooter enough to jostle it into connecting. It would occasionally sputter at high speeds, which had me chasing fuel issues for two weeks till I finally discovered it was the boot by swapping in my old stock one.
|
|
|
|
Post by tvnacman on Jun 10, 2016 16:53:17 GMT -5
If it starts cold on electric, and hot on kickstart, it's most likely valves out of adjustment, but could be a loose connection or thermal short. Valves would be my first check. As for loose connections, I once had a plug boot that became loose (never buy those "performance" coils, they have a spring clip inside that can come out without noticing), and it would start with the kickstart, but not electric. I can only assume that the kicking moved the scooter enough to jostle it into connecting. It would occasionally sputter at high speeds, which had me chasing fuel issues for two weeks till I finally discovered it was the boot by swapping in my old stock one. I'm leaning towards valves. could be pair or egr related. John |
|
