Using your K&N replacement air filter is easy. First, make sure your motorcycle engine is off and cooled down. Locate the air filter housing on your Indian bike, usually near the engine. Open the housing carefully, remove the old air filter, and then place the K&N filter in its place. Ensure it fits snugly and close the housing. When it comes to maintenance, check the filter regularly, especially if you ride in dusty or dirty conditions. You can clean the filter using a K&N filter cleaning kit. Follow the instructions on the kit, which usually involves washing the filter gently and then re - oiling it. Make sure the filter is completely dry before reinstalling it. Always store the filter in a clean, dry place when not in use.