Looking for help I have a 75 dt 175 starts fine and runs pretty good with the choke out but only runs a couple of seconds after I push the choke in I took the carburetor apart and cleaned all the jets (everything actually looked pretty clean) but that didn’t seem to help 

Sorry for asking, but  "all the jets" included the pilot? They can be clean, but still be blocked.

Yep I took them out and blew air through all of them 

Could you see daylight through it?

Yep it’s definitely open  when I push the choke in it runs a couple of seconds then dies like it ran out of gas 

He asked if you could physically see daylight through the jet. Tricky little guys can trip you up every time.  also, what are your float heights and is the 
inlet valve functional. 

you may have checked pilot jet was clear , but did you also check the passages
 up to the venturi , ( there are two ) one straight up , and one on an angle exiting ahead of the slide .