[KingCraigx]

Hello all! I'm hoping you can help me out as I've been trying to fix up my little Chinese 139qmb gy6 scooter. Sorry if I ask something that has been posted before but I need all the help I can get! Thanks!

So I have a 139qmb engine gy6 scooter, it has been upgraded to a 80cc from a 49cc. I will list all performance and new parts below.
Performance free flow exhaust.
Performance air filter.
Performance un-restricted CDI unit.
New battery.
New starter motor.
New NGK spark plug.
New performance coil.
New 19mm carb.
Valves adjusted.
I have a pack of jets from #70 to #83.
Currently have main jet #83 installed.

The main problem I get is just trying to start it up. It use to take a while to start but now it won't start a tall unless boosted from a car battery. The battery is fully charged and still won't start. It is getting fuel to the carb and it does have a spark. Once started it idles perfectly and rides perfectly.
I've been working on this since November last year! It just will never start! Also the engine does turn over too but yet still won't start. I can't kick start it either as this is sticky when used and does nothing.

Is there anything else that I can do? Already spent a lot of money changing stuff so I'm getting fed up now.
Thanks for the help! Would appreciate it!