17. List the steps to perform a lower unit gearcase -oil change according to figure 3-10 __ b. C. __ d. e. __ f. g. h. __

To perform a lower unit gearcase oil change, follow these steps:<br /><br />1. **Drain the Old Oil**: Locate the oil drain plug on the bottom of the gearcase. Place a drain pan underneath and remove the plug to allow the old oil to drain out completely.<br /><br />2. **Remove the Oil Filter**: Once the oil has finished draining, remove the oil filter using an oil filter wrench. Be sure to have a new oil filter ready.<br /><br />3. **Add New Oil**: After removing the old oil filter, replace the oil drain plug and add the recommended amount of new oil to the gearcase. Refer to your owner's manual for the correct oil type and quantity.<br /><br />4. **Replace the Oil Filter**: Screw on the new oil filter by hand, then tighten it an additional 3/4 to 1 full turn with the oil filter wrench.<br /><br />5. **Check for Leaks**: Start the engine and let it run for a few minutes. Check the oil level and look for any signs of oil leaks around the oil drain plug and oil filter.<br /><br />6. **Reassemble**: Once everything is secure and there are no leaks, reassemble any parts you removed during the process.<br /><br />7. **Dispose of Used Oil**: Properly dispose of the used oil and filter by taking them to a recycling center or an auto parts store that accepts used oil.<br /><br />8. **Clean Up**: Clean any tools and the gearcase area, and wash your hands.<br /><br />These steps should help you perform a successful lower unit gearcase oil change.