Using your K&N air filter is easy. First, make sure your motorcycle is turned off. Then, remove the old air filter from your bike's airbox following the manufacturer's instructions. Place the new K&N air filter in the same spot, making sure it fits snugly. Once it's in place, close the airbox. As for maintenance, check the filter regularly, especially if you ride in dusty or dirty conditions. You can clean the filter with K&N's recommended cleaning kit. Just follow the steps on the kit's instructions. When cleaning, be gentle to avoid damaging the filter. Also, remember to let the filter dry completely before reinstalling it. With proper use and maintenance, your K&N air filter will keep your motorcycle running great for a long time.