Spark Plugs: Maintenance interval – spark plug replacement

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• Every 300 Hours / Three Years Maintenance – 75–115 HP 4-Stroke

  Procedure · 1. Check power trim fluid. Refer to Checking Power Trim Fluid section. 2. Lubricate all lubrication points. Lubricate more frequently when used in saltwater. Refer to Lubrication Points section. 3. Replace water pump ...

• Power Trim: Maintenance interval – power trim fluid check

  Spec · Every 300 hours of use or three years conditions={"interval_type":"time or hours"}

• Every Use / Pre-Operation Checks – Air Intake (75–115 HP 4-Stroke)

  Procedure · 1. Check that the intake silencer is in place, if equipped. 2. Check that the idle relief muffler is in place, if equipped. 3. Check for loose hose clamps and rubber boots on the air intake assembly, if equipped.

• Water Pump Impeller: Maintenance interval – water pump impeller replacement

  Spec · Every 300 hours of use or three years (dealer service) conditions={"service_level":"dealer","note":"Replace more often if overheating occurs or reduced water pressure is noted"}

• All lubrication points: Maintenance interval – lubrication points

  Spec · Every 300 hours of use or three years (more frequently in saltwater) conditions={"interval_type":"time or hours","note":"Increase frequency in saltwater"}