It sounds like you might be dealing with a fuel issue. Since your engine cranks but won’t fire up, it could be that you’re not getting fuel to the engine. First thing to check would be the fuel level and ensure that there is indeed fuel in the tank. If that’s fine, you might want to inspect the fuel line and filter for any dirt or debris that could be blocking the flow. Sometimes the fuel pump can become inoperative or restricted, so checking its operation is also a good idea. Additionally, make sure the fuel valve is working properly and not clogged.

Good luck, and let us know what you find!