Answer :
Final answer:
Regular maintenance of spark plugs and thorough inspection of thru-hull fittings are crucial for gas-powered boat upkeep.
Explanation:
Annual maintenance for a gasoline-powered boat should include changing the spark plugs with marine-specific plugs and checking the spark gap to ensure proper ignition. Additionally, examination of thru-hull fittings for signs of leakage or corrosion is essential for safety and reliability.
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