Product Manual
Table Of Contents
- 25/30 EFI FourStroke
- Welcome
- Read This Manual Thoroughly
- Notice
- Warranty Message
- Copyright and Trademark Information
- Identification Records
- General Information
- Boater's Responsibilities
- Outboard Remote Control Models
- Exhaust Emissions
- Lanyard Stop Switch
- Protecting People in the Water
- Passenger Safety Message - Pontoon Boats and Deck Boats
- Wave and Wake Jumping
- High-Speed and High-Performance Boat Operation
- Impact with Underwater Hazards
- Safety Instructions for Hand-Tilled Outboards
- Safe Boating Recommendations
- Conditions Affecting Performance
- Recording Serial Number
- Model Year Production Code
- Component Identification
- Specifications
- Installation
- Transporting
- Fuel and Oil
- Features and Controls
- Operation
- Maintenance
- Cleaning Care
- EPA Emissions Regulations
- Inspection and Maintenance Schedule
- Maintenance Schedule Decal Icons
- Maintenance Schedule Decal
- Top Cowl Removal and Installation
- Cooling System
- Corrosion Control Anode
- Engine Oil
- Fuel System
- Gearcase Lubrication
- Lubrication Points
- Propeller Replacement
- Spark Plug Inspection and Replacement
- Storage
- Troubleshooting
- Owner Service Assistance
- Maintenance Log
- General Information
Description Where Used Part No.
Corrosion Guard
External metal surfaces of the powerhead and
powerhead components.
92-802878 55
EPA Emissions Regulations
All new outboards manufactured by Mercury Marine are certified to the United
States Environmental Protection Agency, as conforming to the requirements of
the regulations for the control of air pollution from new outboard motors. This
certification is contingent on certain adjustments set to factory standards. For
this reason, the factory procedure for servicing the product must be strictly
followed and, wherever practicable, returned to the original intent of the design.
Maintenance, replacement, or repair of the emission control devices and
systems may be performed by any marine spark ignition (SI) engine
repair establishment or individual.
EMISSION CERTIFICATION LABEL
An emission certification label, showing emission levels and engine
specifications directly related to emissions, is placed on the engine at the time
of manufacture.
a - Idle speed
b - Engine horsepower
c - Piston displacement
d - Engine power ‑ kilowatts
e - Date of manufacture
f - US EPA engine family name
g - Regulated emission limit for the engine family
h - Regulated emission limit for the engine family
i - Recommended spark plug and gap
j - Percent of fuel line permeation
OWNER RESPONSIBILITY
The owner/operator is required to have routine engine maintenance performed
to maintain emission levels within prescribed certification standards.
SPARK PLUG:
GAP:
EMISSION CONTROL
INFORMATION
THIS ENGINE CONFORMS TO
EMISSION REGULATIONS FOR SPARK IGNITION MARINE ENGINES
CALIFORNIA AND U.S. EPA
REFER TO OWNERS MANUAL FOR REQUIRED MAINTENANCE,
SPECIFICATIONS, AND ADJUSTMENTS
IDLE SPEED (in gear):
FAMILY:
HC+NOx:FEL:
LOW PERM/HIGH PERM:
g/kWh
hp
L
e
d
c
b
a
f
g
h
i
HC+NOx:FEL:
g/kWh
hp
L
CO FEL:
g/kWh
kw
g/kWh
j
43210
MAINTENANCE
eng 87