Engine turns over but won't start, it has been sitting for three months, has spark
	
	
		My jeep has been sitting for three months, ran great when I parked it.  Now it won't start.  Its turning over and wants to grab but just won't.  I peplaced the plugs, they are getting spark and are wet with fuel.  Tried ether and that won't do it either.  Put in 20l fresh fuel as well.  I can hear the fuel pump start upon ignition.  Any suggestions?  Could it be the battery doesn't have enough juice to turn it fully over?  Or would it not even turn if that was the case?