Performance Loss

Related KB links

• Trim Tab: Trim tab adjustment effectiveness limit – antiventilation plate height above boat bottom

  Spec · 50 mm (2 in.) conditions={"note":"Trim tab adjustment will have little effect reducing steering torque if antiventilation plate is approximately 50 mm (2 in.) or more above the boat bottom"}

• Propeller Selection and Full-Throttle RPM Check

  Procedure · 1. Select a propeller that allows the engine to operate in the upper half of the recommended full throttle RPM range with the boat normally loaded (refer to General Information – Specifications). 2. If changing condit...

• Gearcase: Gearcase Lubricant Recommendation

  Spec · Mercury or Quicksilver High Performance Gear Lubricant

• Operating at High Elevations

  Procedure · 1. The engine automatically compensates for high elevation changes. No manual adjustment is required. 2. Consider fitting a different pitch propeller to help reduce normal performance loss resulting from reduced oxyge...

• Performance Loss

  Diagnostic · Cause: Boat overloaded or load improperly distributed