How do you troubleshoot starting problems with polaris sportsman 90?

To troubleshoot starting problems with a Polaris Sportsman 90, first check the battery for a proper charge and connections, ensuring they are clean and tight. Next, inspect the fuel system for blockages or stale fuel, and verify that the fuel valve is open. Additionally, examine the spark plug for wear or fouling, and replace it if necessary. If these steps don’t resolve the issue, consider checking the ignition and safety switches for functionality.