Yes, you can replace the primer yourself. Is it the 'classic' type (carburettor on the tank), or 'Quantum' type (separate tank, and primer on the front?
However, if it's the classic type, it's more likely to be a diaphragm that you need. Also a DIY job.
Has the mower stood unused for any length of time?
phil_saunders@bigfoot.com
Phil Saunders, September 2008