1200 Explorer Only Running On 2 After 5 Month Lie Up

Put some fuel additive in it?
Possibly a blocked injector.

 

Your tank isn’t sealed like a fuel can. It needs to be able to equalise pressure so you will lose the most volatile fuel elements through evaporation while the injectors may have dried to the point where one is gummed.
Persevere, it should clear and clean itself up with additive. Failing that you may need an aerosol cleaner.

 

If you can get a good squirt of cleaner/additive in the fuel rail at start up, so much the better.

 

There are 2 reasons why it won't fire.
1/ Lack of spark.
2/ Lack of fuel.
If the fuel cleaners don't work, try taking the plugs out and seeing if they all work. (Easiest to test and replace first.) If they work then the injectors will need attention.

 

Thank you for the information.
Do you have a link to the booster ?