Evaluating used boat motors: Beyond the 1,000-hour rule

The 1,000-hour rule for used boat motors is a guideline, not a definitive measure of remaining life. Service history, how hours were accumulated, and the type of water the boat operated in are more critical factors than just the hour count. Neglected engines with low hours can be problematic, while well-maintained engines with over 1,000 hours can still be reliable.