There are several reasons your stove may not be priming or lighting. The most common one is that the jet is clogged. First try cleaning your jet. Shaker jet stove owners simply shake your stove vigorously up and down. Non shaker jet stove owners use the jet cleaning wire that was provided with your stove to poke out any debris that may be blocking the passage of fuel. If unsuccessful, remove jet and clean, then hold the jet up and look through hole to make sure it is clear, crisp, and round. If that doesn't resolve the problem, you will need to clean the fuel line.