Check the muffler and cylinder port, may be clogged with carbon.

Thanks romore I took the muffler off and cleaned the carbon out of the port and it fired up and ran great and then i put the muffler back on and the same problem happen. So i took out the spark arrester screen out and it cranked right up and runs great now, would it be ok to run it like that or do i need to pick one up tomorrow?

You can clean the crud off a spark arrestor screen by heating it up with a propane torch. A spark arrestor is only required by the forestry service where sparks may cause a fire.