Check fuel filter and carburetor or fuel injectors if so equipped. Some older cars with Carburetors have a fuel filter where the fuel line enters the Carb. Provide year and engine specifics for a better answer.
Check for fuel and spark to the cylinders
If the car will not start after replacing the battery, then the battery was not the problem. If it will not turn over, you may have a bad starter or bad connection. If it turns over but will not start you either have no fuel or no spark. You will have to determine which.
There could be many reasons why the vehicle won't start. The battery could be drained, there may not be connection on the battery post, there may not be a spark between the spark plugs, the starter could be going bad, or the solenoid may need to be replaced.
There are a couple of a reasons why a 1994 Ford F150 truck will not start. The truck may have a dead battery or the spark plugs need to be replaced.
Electrical issue, computer issue, engine mechanical issue, no fuel in tank, no spark to spark plugs, dead battery, etc
Usually if there is no spark when trying to start a all terrain vehicle the battery is dead. Check the battery terminals or try charging the battery.
I would definitely change the gas and probably the oil first. Check for spark and fuel getting to the cylinders.
Check the starter, spark plugs, distributer cap, battery.
Try replacing the spark plugs /wires and distrubuter cap if it doessnt work still you may have a bad ignition coil or fuel problems
Does it turn over? Does the starter crank? Why did you replace the battery? It takes 3 things for an engine to run, fuel, air and spark. If you replaced the battery let's assume you have spark, but do you have fuel? What I mean is are you getting fuel to the engine? Your question needs a little background info about why you replaced the battery first and what is going on now. Your description here is too vague to make a good diagnosis.
Check your battery voltage, low voltage will not allow electronic fuel injection to work properly. Fuel? Spark? Compression
Check your battery and alternator.