1986 Evinrude 110 HP Manual

The 1986 Evinrude 110 HP is a V4 outboard motor featuring 110 horsepower, loop-charged combustion system, 90-degree V-block design, thermostatically controlled cooling, CD ignition system, and single-lever remote control. Below are key sections for safety, specifications, operation, maintenance, troubleshooting, and service procedures.

1. Features at a Glance 2. Installation 3. Operation 4. Specifications 5. Controls and Settings 6. Fuel System 7. Electrical System 8. Cooling System 9. Maintenance Schedule 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: V4 cylinder block, CD ignition system, single-lever remote control, thermostatic cooling, fuel pump, water pump, and power trim/tilt.

Feature	Description
Engine Type	90-degree V4 outboard
Displacement	105.9 cubic inches (1736cc)
Ignition System	Capacitor Discharge (CD)
Fuel System	Dual carburetors with fuel pump
Cooling System	Thermostatically controlled water-cooled
Gear Ratio	14:27 (1.93:1)
Starting System	Electric start with alternator
Weight	Approximately 295 lbs (134 kg)
Trim System	Power trim and tilt
Propeller	13-1/4" diameter (varies by application)

Installation

Mounting and rigging procedures for proper installation.

Select proper transom height: Ensure transom matches motor shaft length.
Mounting: Use appropriate mounting bolts and hardware for secure attachment.
Steering connection: Connect steering system according to boat manufacturer specifications.
Electrical connections: Connect battery, control cables, and trim/tilt wiring.
Fuel system: Install fuel lines with proper anti-siphon protection.

WARNING! Engine is heavy; use proper lifting equipment. Ensure all connections are secure before operation.

Operation

Starting and operating procedures for normal use.

Pre-start check: Verify fuel level, oil level, and cooling water intake.
Starting procedure: Turn key to start position; choke if cold starting required.
Warm-up: Allow engine to idle for 2-3 minutes before applying throttle.
Shifting: Use single-lever control for smooth forward/reverse shifting.
Running: Monitor temperature gauge and warning systems during operation.

CAUTION! Always check for water discharge to ensure proper cooling system operation.

Specifications

Horsepower: 110 HP at 5000 RPM
Cylinders: 4 (V4 configuration)
Bore x Stroke: 3.50" x 2.75" (89mm x 70mm)
Fuel/Oil Ratio: 50:1 with TC-W3 certified oil
Fuel Type: 87 octane regular unleaded gasoline
Ignition Timing: 4° BTDC at idle, 18° BTDC at WOT
Spark Plugs: Champion UL18V or equivalent
Alternator Output: 9 amp at 5000 RPM
Full Throttle Range: 5000-6000 RPM
Gearcase Capacity: 26 oz (0.77L) of gear lube

Controls and Settings

Control panel and remote control functions.

Control Panel: Key switch, choke button, trim/tilt switches, warning horn.

Remote Control: Single-lever control for throttle and shift, trim/tilt buttons, emergency stop switch.

Adjustments: Idle speed (650-750 RPM in neutral), throttle linkage synchronization, shift cable adjustment, trim angle settings for optimal performance.

Fuel System

Fuel system components and maintenance.

Fuel pump: Diaphragm-type with check valves
Carburetors: Dual fixed-jet carburetors with float bowls
Fuel filter: Replace annually or every 100 hours
Fuel lines: Inspect for cracks and deterioration regularly

Tip: Use fuel stabilizer for extended storage periods.

Electrical System

CD ignition and charging system components.

Ignition coils: Four individual coils (one per cylinder)
Stator: Provides charging and ignition power
Voltage regulator: Controls alternator output
Battery: Minimum 450 CCA marine starting battery
Wiring: Color-coded harness with waterproof connectors

WARNING! Disconnect battery before servicing electrical components.

Cooling System

Water pump and thermostat operation.

Water pump: Rubber impeller type - replace every 2 years
Thermostat: Opens at 143°F (62°C)
Pressure relief valve: Prevents over-pressurization
Tell-tale stream: Visual indicator of water pump operation

CAUTION! Always run in water or with flushing device to prevent impeller damage.

Maintenance Schedule

Regular maintenance intervals for optimal performance.

Interval	Service Required
Every 100 hours	Change gear lube, inspect spark plugs
Annual	Replace water pump impeller, fuel filter
Every 2 years	Replace thermostat, inspect fuel lines
Every 300 hours	Decarbonize combustion chambers
As needed	Grease fittings, check propeller condition

Regulatory Information

US Coast Guard and EPA compliance information. Manufactured to meet 1986 marine engine emissions standards. Copyright © 1986 Outboard Marine Corporation. Evinrude is a registered trademark of OMC. For technical support, contact authorized Evinrude dealers or OMC customer service.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Engine won't start	Fuel, spark, or compression issue	Check fuel supply, spark plugs, and compression
Overheating	Water pump or thermostat failure	Inspect water pump impeller and thermostat
Poor performance	Fuel restriction or ignition problem	Check fuel filter and ignition timing
No charging	Stator or regulator failure	Test stator output and voltage regulator
Hard shifting	Cable adjustment or gearcase issue	Adjust shift cable or inspect gearcase

Service: Contact authorized Evinrude dealer for major repairs.

Technical Support: Refer to OMC service bulletins for updated information.