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TTR 90 Hard start

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I pulled my sons old ttr90 out of the barn been in there for about 6 months drained the old fuel oil cleaned the carb put it all back together now it will not start without starter fluid once it starts seems to run ok a little back firing when you let the throttle go. If i squeeze the air intake tube when starting it will start on its own.

Its like its getting to much air. I have not changed the jets in it they are the stock ones.

I have be adjusting the air screw the manual says 1 3/4 turns out. Its been a real pain.

Any help at all my nephew is tall enough to ride told him I would get it going so he has been asking EVERYDAY!!!

Thanks in advance for any help

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I live in florida about 190' above sea level. The bike ran fine when I put it in the barn 6 months ago. I was able to ride it around the back yard today. Just can not keep it running.

Thanks again.

Ty

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Turns out it was the pilot Jet took the carb off again looked everything over the pilot was clogged I hit with the air compressor and did not even look inside. LOL

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