If the stove is wired directly to the battery (as many) and in lock down, then the fuse has to be pulled for a minute to "reset". Label that fuse. There will probably be a main circuit fuse and bilge pump fuse.
Also check to see if there is air in the fuel line--and if the fuel is getting to the stove. When I got my Tom Cat, some nut (or lack of nut) at the factory didn't connect the fuel line to the stove, and left the nut on the fuel line so that it leaked air. You can get a small bubble in the fuel line by momentarily pulling the filter out of the fuel jug, then tracing this bubble as it goes up the clear line. Check the fuel line nut where it goes into the stove at the foreward outboard part under the stove.
Incidently if the stove fails to light 3 times, it goes into the lock down. This may be due to a variety of reasons--from fuel to voltage etc.