Using this ARCO Marine Outboard Starter Brush Kit is straightforward. First, make sure your outboard engine is turned off and cooled down. Then, carefully remove the old brush kit from your American - made permanent magnet outboard starter and replace it with this new one. When installing, ensure proper alignment. Remember, this product can't be returned to the place you bought it. If you face any problems, reach out to the manufacturer right away. For maintenance, it's a good idea to check the brushes periodically for wear and tear. Keep the kit in a dry and clean place when not in use. With ARCO's 12 - month part and labor warranty, you can rely on this brush kit for a long - lasting performance.