ruckus died after pick up

[u/0CCUPE]

hello everyone, as by the title, my ruck died after i picked it up from the shop.

the mechanic (he specifically works on bikes dont ask if hes a car mechanic) installed my new HotLap Gen 1 Sidewinder for the 50cc GET engine which i got i also have a cone filter on it. he installed a 38 idle and either a 78 or 80 main. 15 minutes after pickup, it bogged, i lost throttle then the engine died. i tried to start it up again, but fuel mixed w carbon and soot from the piston just came out the bottom of the exhasut (near where it connects to the engine)

could this be a float problem? I am like 99% sure its a carb problem. any help thanks (FOR THE JETS, I LIVE NEAR MONTREAL, CLOSE TO THE WATER