Using your ARCO 8 - tooth Mercury/Mariner outboard starter is easy. First, make sure your battery is fully charged. A weak battery can damage the starter and the starter solenoid. Also, clean all the connections to the starter. Corroded connections can reduce the power needed for a good start. When installing, follow the standard procedures for your engine type. For maintenance, check the starter regularly for any signs of corrosion. Since it's nickel - coated and epoxy - painted, it resists corrosion well, but it's still a good idea to keep an eye on it. Also, make sure the seal is intact to prevent water from getting in. If you have any problems or concerns, don't return it to the place you bought it from. Instead, contact the manufacturer directly. And remember, if you register your product within 30 days of purchase on arcomarine.com/product - registration, you'll get an extra year of warranty for this rotating electric ARCO product.