Maintenance60Checkpoints Check each of the propeller blades for ero-sion from cavitation or ventilation, or otherdamage. Check the propeller shaft for damage. Check the splines for wear or damage. Check for fish line tangled around the pro-peller shaft. Check the propeller shaft oil seal for dam-age.EMU30662Removing propellerEMU29197Spline models1. Straighten the cotter pin and pull it outusing a pair of pliers.2. Remove the propeller nut, washer, andspacer (if equipped). WARNING! Donot use your hand to hold the propel-ler when loosening the propeller nut.[EWM01890]3. Remove the propeller, washer (ifequipped), and thrust washer.EMU30672Installing propellerEMU29233Spline modelsNOTICEECM00500Be sure to use a new cotter pin and bendthe ends over securely. Otherwise thepropeller could come off during opera-tion and be lost.1. Apply Yamaha marine grease or a cor-rosion resistant grease to the propellershaft.2. Install the spacer (if equipped), thrustwasher, washer (if equipped), and pro-peller on the propeller shaft. NOTICE:Be sure to install the thrust washerbefore installing the propeller, other-wise the lower case and propellerboss could be damaged. [ECM01880]3. Install the spacer (if equipped) and thewasher. Tighten the propeller nut to theZMU018971. Cotter pin2. Propeller nut3. Washer4. Spacer5. Propeller6. Thrust washerZMU028296 54 3 21