you might have a sensor issue, im assuming the master sensor its only about 20bucks in parts stores
Start by checking the fuse.
Check the ECM located on the front driver side of the engine block. Cost about $40. It is about 3 inches wide 2 inches high and half inch thick with fine.
lack of fuel
First thing that comes to mind, fuel pump.
check ignition
o2 sensors
you need to supply more info, it could be any of several dozen things, ignition coil, starter etc
Start with replacing the fuel filter.
Could be,Blown fuse,Bad blower motor,Bad blower motor switch,Bad blower motor speed resistor,
dirty carb bowl or water in the carb
you can but it wont stay running if the battery is dead
There is a fuse for the gauges, check it.