READ THIS FIRST: This troubleshooting guide is meant as a reference only. Your motor problem may be unique, but most motor performance problems are caused by battery, battery charging, and wire connection issues. Before calling Hammer-Head, please make sure that you have checked all wiring connections for tightness, removed any corrosion, and checked wires for excessive twisting or fraying.

Make sure you are following these charging guidelines:

We suggest the use of a 12 volt deep-cycle marine battery and an automatic charger that can charge at a minimum of 6 amps and no more than 10-12 amps. Automatic chargers will charge the battery to full capacity and then adjust automatically to a lower charging rate to maintain the charge. Charge your battery every day and leave it connected to the automatic charger when not in use. This will lengthen the battery life. DO NOT TRICKLE CHARGE. (TRICKLE CHARGING IS ANYTHING LESS THAN 6 AMPS). Do not use a car battery.

With proper maintenance and care, Hammer-Head units can provide many years of reliable performance.  Use the chart below to see the age of your Hammer-Head motor. You can download this guide by clicking an arrow below. Use this chart to find out what year your motor was made. If you decide to send in your motor for service, please download this a motor service request form and read it completely for instructions on how and where to send it.
NOTE: We are no longer repairing motors with 071000 serial numbers and earlier. These motors should be replaced.