1984 Honda atc110 won't run unless choke is on and won't idle?

I have a Honda atc 110 and it will start with choke on and run but it won't idle. And when I turn choke off it will die. I just bought a new carburetor for it and I tried adjusting the screws for on it but it did nothing. Any ideas?

You have a plugged up main jet. Probably from the ethanol in the gas that sat in it for too long. That happens to snow blowers and lawn mowers all the time too.

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