McCULLOCH MAC 120 Chainsaw

I am not positive what model this is as the number stickers are gone. Could be a mini also. I just know it is a pain to rebuild carb ad you have to pull the entire motor out of the aluminum housing. I took it apart and cleaned it up and put new gasket kit in carb. Did not remember the needle valve adjusments and it flooded and would not start. I reset the needles to 3/4 on H and 1/2 on L after it sat over night and it started right up. Adjusted the carb and ran good but ran out of gas and then would not start again, just flooded out. Let it sit again and it started right up, adjusted carb ran well for about 2 min then died and would not start again. Frustrating!!

Any ideas what is going on?

Thanks

Happy New Year