Engine Trouble Accelerates on start up

[ImpulseRocket]

Damn, I'm good.

 

[DAMIEN1307]

Damn, I'm good.

And humble too...lol...lol.

 

[ImpulseRocket]

And humble too...lol...lol.

Extraordinarily humble. Like, the most humble of humblers.

 

[Chainlube]

Thanks for replies,
I can't do the brake cleaner check since I can't get it to sit still and don't feel like going evel knievel to test
I've checked the carb and the choke moves freely inside the carb with the lever with decent friction, throttle also pulls spring in a few mm but I've noticed there isn't an O ring sitting between the inlet pipe and carb mounting point and it's just metal on metal sealed with a hose clamp ("speed" carb, came with cheapest kit on amazon £89) is this likely the issue ? Could I try to seal it with some electrical tape ? If not what is suggested.

Thanks in advance

Make a stand to hold your back wheel off the ground, two 2x4s nailed to some plywood will do it.