1. Motor fails to run or lacks power:
• Check battery connections for proper polarity.
• Make sure terminals are clean and corrosion free. Use fi ne sandpaper or emery cloth to clean terminals.
• Check battery water level. Add water if needed.
2. Motor loses power after a short running time:
• Check battery charge. If low, restore to full charge.
3. You experience prop vibration during normal operation:
• Remove and rotate the prop 180°. See removal instructions in the Propeller Replacement Section.
4. Experiencing interference with your fi shfi nder:
TROUBLESHOOTING & REPAIR