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Mercury Optimax User Manual
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GENERAL INFORMATION
31
Models
75
90
115
Gearcase Lubricant
Capacity
665 ml (22.5 fl. oz.)
Battery Rating
1000 Marine Cranking Amps (MCA) or 800 Cold
Cranking Amps (CCA)
Charging System Output
60 Amps
Component Identification
a
j
i
h
b
g
f
e
d
c
29461
a -
Top cowl
b -
Auxiliary tilt switch
c -
Transom brackets
d -
Gearcase
e -
Cooling water intake
holes
f -
Trim tab
g -
Anti‑ventilation plate
h -
Driveshaft housing
i -
Water pump indicator
hole
j -
Bottom cowl
38
40
Table of Contents
Table of Contents
5
Transfer of Warranty
9
Warranty Registration United States and Canada
9
Warranty Information
9
Warranty Registration Outside the United States and Canada
10
Optimax Outboard Limited Warranty United States, Canada, Europe, Confederation of Independent States, Middle-East and Africa
11
Year Limited Warranty against Corrosion
14
Warranty Coverage and Exclusions
18
Boater's Responsibilities
21
Before Operating Your Outboard
21
General Information
21
Boat Horsepower Capacity
22
High-Speed and High-Performance Boat Operation
22
Propeller Selection
22
Outboard Remote Control Models
25
Remote Steering Notice
26
Lanyard Stop Switch
27
Protecting People in the Water
29
Passenger Safety Message - Pontoon Boats and Deck Boats
30
Wave and Wake Jumping
31
Impact with Underwater Hazards
32
Exhaust Emissions
34
Selecting Accessories for Your Outboard
35
Safe Boating Suggestions
36
Recording Serial Number
38
75/90/115 Optimax Specifications
38
Component Identification
39
Trailering Boat/Outboard
40
Transporting
40
Fuel Recommendations
41
Fuel and Oil
41
Fuel Requirements
43
Fuel Additives
43
Avoiding Fuel Flow Restriction
43
Oil Recommendation
43
Filling Oil Injection System
43
Filling Fuel Tank
45
Remote Control Features
46
Features and Controls
46
Warning System
47
Power Trim and Tilt
50
Trim Tab Adjustment
54
Pre-Starting Check List
55
Operating in Freezing Temperatures
55
Operation
55
Operating in Salt Water or Polluted Water
56
Operating at High Elevations
56
Setting Trim Angle While Running Engine at Idle Speed
57
Engine Break-In Procedure
57
Starting the Engine
58
Gear Shifting
61
Stopping the Engine
62
Outboard Care
63
EPA Emissions
63
Maintenance
63
Inspection and Maintenance Schedule
64
Flushing the Cooling System
65
Top Cowl Removal and Installation
66
Cleaning Care for Top Cowl
67
Flywheel Cover Removal and Installation
67
Side Panel Removal and Installation
68
Fuel System
69
Steering Link Rod Fasteners
71
Fuse Replacement
72
Corrosion Control Anode
73
Battery Inspection
74
Battery Information
75
Propellers
76
Spark Plug Inspection and Replacement
79
Compressor Air Intake Filter
80
Alternator Belt Inspection
80
Lubrication Points
81
Checking Power Trim Fluid
83
Gearcase Lubrication
84
Storage Preparation
87
Fuel System
87
Storage
87
Protecting Internal Engine Components
89
Protecting External Outboard Components
90
Gearcase
90
Positioning Outboard for Storage
90
Battery Storage
90
Starter Motor will Not Crank the Engine
91
Engine will Not Start
91
Troubleshooting
91
Engine Runs Erratically
92
Performance Loss
92
Battery will Not Hold Charge
92
Local Repair Service
93
Service Away from Home
93
Parts and Accessories Inquiries
93
Service Assistance
93
Owner Service Assistance
93
Mercury Marine Service Offices
94
Important Information
96
Boat Horsepower Capacity
96
Start in Gear Protection
96
Outboard Installation
96
Selecting Accessories for Your Outboard
97
Fuel Tanks
97
Installation Specifications
97
Lifting the Outboard
98
Steering Cable - Starboard Side Routed Cable
99
Determining Recommended Outboard Mounting Height
100
Drilling Outboard Mounting Holes
101
Fastening the Outboard to the Transom
103
Electrical, Fuel Hose, Flush Hose and Control Cables
106
Oil Injection Set-Up
119
Trim in Pin
120
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Mercury Optimax Specifications
General
Brand
Mercury
Model
Optimax
Category
Outboard Motor
Language
English
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