Mercury 25 EFI Service Manual page 15

Table of Contents
Selecting Accessories for Your Outboard.......................... 1B-2
EPA Regulations................................................................1B-2
EPA Emissions.................................................................. 1B-3
Emission Certification Label....................................... 1B-3
Owner Responsibility.................................................. 1B-3
Inspection and Maintenance Schedule.............................. 1B-3
Daily Checks...............................................................1B-3
After Each Use............................................................1B-3
Annually or 100 Hours................................................ 1B-3
Three years or 300 Hours...........................................1B-4
Battery Inspection ............................................................. 1B-4
Submerged Outboard........................................................ 1B-4
Exterior Care......................................................................1B-4
Flushing the Cooling System............................................. 1B-4
Flushing Jet Models....................................................1B-5
Top Cowl Removal and Installation................................... 1B-5
Removal......................................................................1B-5
Installation...................................................................1B-6
Fuel System....................................................................... 1B-6
Fuel Line Inspection....................................................1B-6
Fuel Filter (Low Pressure) ......................................... 1B-6
Removal......................................................................1B-6
Installation...................................................................1B-6
Fuse Replacement - Electric Start Models.........................1B-6
Spark Plug Inspection and Replacement...........................1B-7
Timing Belt Inspection........................................................1B-8
Changing Engine Oil ......................................................... 1B-8
90-8M0105568 eng MARCH 2016
Important Information
Section 1B - Maintenance
Checking Power Trim Fluid................................................1B-9
Corrosion Control Anode................................................... 1B-9
Propeller Replacement.................................................... 1B-10
Gearcase Lubrication.......................................................1B-12
Lubrication Points............................................................ 1B-13
Jet Maintenance...............................................................1B-14
Storage Preparation.........................................................1B-21
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Engine Oil Capacity.................................................... 1B-8
Oil Changing Procedure............................................. 1B-8
Changing Oil Filter ..................................................... 1B-8
Oil Filling..................................................................... 1B-9
Draining Gearcase....................................................1B-12
Gearcase Lubricant Capacity................................... 1B-12
Gearcase Lubricant Recommendation..................... 1B-12
Checking Lubricant Level and Refilling Gearcase.... 1B-12
Worn/Dull Impeller.................................................... 1B-14
Impeller Clearance Adjustment.................................1B-15
Impeller Removal and Installation.............................1B-15
Shift Link Rod Adjustment........................................ 1B-17
Corrosion Control Anode.......................................... 1B-18
Lubrication Points..................................................... 1B-19
Protecting External Outboard Components.............. 1B-21
Protecting Internal Engine Components................... 1B-21
Gearcase.................................................................. 1B-21
Positioning Outboard for Storage............................. 1B-21
Battery Storage.........................................................1B-22
Storage Lubrication Points........................................1B-22
Maintenance
1
B
Page 1B-1