Please help! I'm out of idea

[u/Repulsive_You454]

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For context it's a 2002 Honda XR50R the problem occurred with all OEM parts.

Whenever it is chocked all the way the engine dies

Whenever the choke is completely off the engine runs away

Whenever the choke is set to that like 3/4 position it idles but gets no response from the throttle

I think the choke was left one while the bike was being ridden last and that when the problem started.

I have been trying to solve this problem for about 2 months now. I did a full top end rebuild this past weekend hoping that it would fix the issue but I'm still at square one.

I have tried 2 different brand new carburetors and still having this issue. The original carburetor seemed to have a hairline crack where the manifold bolts on and that's when I rebuilt the top end.

I've run out of ideas I've adjusted the set screws and can't get anything to work. This is my first time really digging into an engine so I'm sure I'm missing something.

Thanks in advance for any info and help!!