If you have a older R50X (2006) there might be a problem.
was the lead wrapped with blue near the connector?
if it was black there was a known problem that required a special
TGB\Cobra service bulletin.
the blue was the replacement stator at the time.
they have since changed the stator supplier so that problem went away.
lets have some details from you like , year ,stock coil y/n , extra lights , CDI
stock or w/ snipped wire . good connections at the rectifier/regulator?
oilyhans
i own a scooter shop with rentals ,sales& racing parts.
i also appraise scooters for KBB.
2003 Vino classic stage 0.75
de-reged stock variator w/8g sliding weights.
1.5k rpm springs
42mph
2005 veniceLX ~70cc~upjet~1.5k rpm springs & 7gr sliders
46mph
KeyWest de restricted~8gr slide