vespa et4

I need some help.....please
The scoot has broken down.....again
Initially the HT lead had corroded out of the coil pack so iv replaced the lead, coil pack, plug cap and plug,
Iv cleaned out the carb and air box etc, the plug is sparking a goodun, whilst turning it over it smells lke fuel is getting into the cylinder, but still a no go, iv tried choking the back of the carb up a bit to eliminate the auto choke not working,all i know now is its really starting to irritate me
Any ideas??

Check the float in the carb. Could be the fuel level isn't correct. Also check the oil mixture is ok.