Starts but takes 40 seconds to gain revs

[superfred]

Hi everyone... new here. Just posted an intro. Having a small problem. I can live with it but just wondering what the reasons might be. I successfully derestricted by baotian qt 11. Very happy with myself. (A pretty big deal for me to do something like this all by myself)
Only problem is when i start it, it requires full revs to even start. It then takes 40 seconds to gain any revs whereupon i have to let the throttle off. Most bizarre. It seems fine after that. Just wondering what the reasons might be and if they're gonna be easy to fix. Any ideas would be much appreciated. Thanks for your time.

[tungy999]

check your choke and put an NGK plug in

[bikepartsonline]

Sounds like its flooding... when it starts its slightly lumpy and spluttery for a few secs then clears??