After my complete overhaul, the oil lite comes on,i took off the pressure sensor to prime it,comes out good steady flow.i am running 25/50 oil. any ideas? thanks Harbri.

 

First thing I'd do is put an oil pressure gauge on it to check pressure. You could have a bad/worn sending unit for the oil pressure light.

 

It only takes 3psig to knock out that light I would run 50 wt oil and make sure that the oil is returning to the tank If it is ride on

 

Could it be air in the system ,after all it was totaly drained,only ran it for 3 4 minites.