My 1997 5-speed Sidekick is not starting.Battery is fine and it does not sound like a starter motor issue.Any suggestions?

l am assuming since u do not think it is the starter motor, it means the car is turning over?

Then ur next steps need to be diagnostics of the three parts that make up the engine starting.

1. Spark
2. Fuel
3. Air.

To determine if you're getting spark, the easiest way, is to get one of those inductive timing lights & place it around one of the plug wires. Have someone turn the engine over while depressing the timing light. The light should flash. If it does not then ur problem is with the electronics portion

To determine if it is fuel, turn the engine over a few times & pull a plug. You should see fuel on the spark plugs. If not ur injectors r not putting fuel into the engine. If it does not appear to be getting fuel, get a fuel pressure tester for ur vehicle to determine if you're getting fuel pressure in the fuel rails. Which will mean u will have to determine if ur fuel pump is working. Make sure fuel filter is not clogged, then go after the injectors/fuel pressure regulator.

Air typcially means just making sure you're air filter is clean. Otherwise u will get codes out of ur computer to tell u if one of the air sensors has gone bad. But this typically does not prevent the car from starting.

is it turning over, becuase if it is not then it might be the, oil, the starter.