Cross Furnace Draft Inducer Blower 115 Volts Fasco # A064 "ignitor burned" Questions

...its own. Where does the natural gas go when it fails to ignite ? Do you think I need to replace the ignitor assembly or do you think I should get a new furnace ? recommend getting a carbon monoxide ...

...should be located just in front of the jet where the fuel comes out...a word of caution...the ignitor(and the spark plug looking thing) have very high voltage on them(around 5000Volts) so I ...