Well I have another 50cc to fix. This one came with a leaking carb and no spark.
The red/black wire from the stator to the CDI had been pinched in the frame. Repaired that and then stick no spark. I suspected the CDI, but din't have a spare so I tried another coil. Got spark.
Yesterday no carb, CDI, and coil arrive. Put it all together take it for a ride. Rode about 1/4 mile and it died. Restarted by difficult. Then no spark at all again.
Tried swapping coils, cdi, still nothing.
Tested stator 81VAC at CDI. Nothing at coil.
Tested trigger/pickup coil. 0.1VAC This is my suspect. Reading says I need at least 0.5VAC to trigger the CDI.
So now it looks like I need to replace the trigger coil and stator.
Found some good help over here.
http://chinesescoots.forumwise.com/c...hread9545.html