Cleaning Care; Do Not Use Caustic Cleaning Chemicals; Cleaning Care For Top And Bottom Cowls; Inspection And Maintenance Schedule - Mercury 15 EFI FourStroke Service Manual

Maintenance
Lubricant, Sealant, Adhesives
Tube Ref No.
Quickleen Engine & Fuel
System Cleaner
Extreme Grease
Anti-Seize Compound
81
2-4-C with PTFE
95
Corrosion Guard
120

Cleaning Care

Do Not Use Caustic Cleaning Chemicals

IMPORTANT: Do not use caustic cleaning chemicals on the outboard power package. Some cleaning products contain strong
caustic agents such as hull cleaners with hydrochloric acid. These cleaners can degrade some of the components they come in
contact with including critical steering fasteners.
Damage to steering fasteners may not be obvious during visual inspection and this damage may lead to catastrophic failure.
Some caustic cleaning chemicals may cause or accelerate corrosion. Exercise caution when using cleaning chemicals around
the engine and follow the recommendations on the packaging of the cleaning product.

Cleaning Care for Top and Bottom Cowls

IMPORTANT: Dry wiping (wiping the plastic surface when it is dry) will result in minor surface scratches. Always wet the
surface before cleaning. Do not use detergents containing hydrochloric acid. Follow the cleaning and waxing procedure.
Cleaning and Waxing Procedure
1. Before washing, rinse the cowls with clean water to remove dirt and dust that may scratch the surface.
2. Wash the cowls with clean water and a mild nonabrasive soap. Use a soft clean cloth when washing.
3. Dry thoroughly with a soft clean cloth.
4. Wax the surface using a nonabrasive automotive polish (polish designed for clear coat finishes). Remove the applied wax
by hand using a clean soft cloth.
5. To remove minor scratches, use Mercury Marine Cowl Finishing Compound (92‑859026K 1).

Inspection and Maintenance Schedule

Before Each Use

Refer to the Owner's Manual for a list of checks and inspections that the owner should perform before each use.

After Each Use

Refer to the Owner's Manual for a list of procedures that the owner should perform after each use.

Every 100 Hours of Use or Once Yearly, Whichever Occurs First

• Change the engine oil and replace the oil filter. The oil should be changed more often when the engine is operated under
adverse conditions, such as extended trolling. Refer to Engine Oil.
• Check the water‑separating fuel filter for contaminants. Replace filter if required. Refer to Fuel System.
•
Remove the propeller and lubricate the propeller shaft. Refer to Propeller Replacement.
•
Check the corrosion control anodes. Check more frequently when used in saltwater. Refer to Corrosion Control Anodes.
• Drain and replace the gearcase lubricant. Refer to Gearcase Lubrication.
• Inspect the battery. Refer to Battery Inspection.
• Saltwater use: Remove and inspect the spark plugs for corrosion, and replace as necessary. Apply Anti‑Seize Compound
only to the threads of the spark plug prior to installation. Refer to Spark Plug Inspection and Replacement.
Page 1B-2
Description
Swivel bracket, transom clamp screws, tilt tube, propeller shaft,
Swivel bracket, transom clamp screws, tilt tube, throttle/shift
External metal surfaces (except corrosion control anodes)
© 2018 Mercury Marine
Where Used
Fuel tank
Driveshaft splines
Propeller shaft
steering cable grease
Spark plug threads
Throttle cable barrels and the shift cable rod end
Propeller shaft
cables, steering cable grease fitting
8M0047931
8M0071842
92-898101389
92-802859A 1
92-802878 55
90-8M0125265 eng NOVEMBER 2017
Part No.