The thermostat is stuck open and needs to be replaced.
you have a cracked distribtor cap
The problem could be with your cellunoid. They wear out. Its the part that produces the spark.
Start by checking the sump plug bolt located under your jeep at the lowest point of the engine it may be loose.
The most common reason for the XJ Cherokee to turn over and not start running is a faulty Crankshaft Position Sensor (CPS) on the transmission bell housing. Search the Internet or some of the Jeep specific forums, there are instructions for testing the CPS.
You could, but you would need different brackets.
its your fuel pump
Your local jeep dealer would be a great place to start.
The power
a welder and a cutting torch. or you could just tear them off completely and use netting which would look cooler!
how to start mini jeep 125cc
Check the fuel pump to see if it is running.
you might already know this but give this a shot if you dont. If your jeep will not start, get it jumped off and after you have it started disconnect the negative battery terminal and see if it is still remains running if not, get your alternator checked.