Part was exact fit....started right up.

i put the carb on my mower and it did not work. it will not prime with the primmer bulb. The mower would'nt start without it?
Service was good and part got here on time but still no mower?
Thanks

I made all the necessary carburetor adjustments but could not get my lawnmower run smoothly. I replaced the carburetor and it started first pull and runs like the first day I used it.