Make:
Johnson / Evinrude (Outboard Marine Corporation)
Model Variant:
55 HP series, including variants such as 55ESL, 55EL, 55TEL, etc.
Production Years Covered:
1973-1990
Engine Type:
2-stroke, water-cooled, gasoline outboard
Cylinders:
2-cylinder inline
Displacement:
Approximately 45.6 cu in (747 cc) - typical for 55 HP models
Manual Type:
Service Repair Manual
Format:
PDF (instant download)
Market Position:
Mid-range outboard for recreational and light commercial boating
Target Audience:
Boat owners, technicians, and mechanics
Competitive Advantage:
Robust 2-stroke design, water-cooled system, reliable performance
Key Features:
Durable construction, ease of maintenance, widespread parts availability
Purpose:
Provides necessary information for maintenance, repair, and troubleshooting
Engine Mechanical:
Cylinder head, pistons, crankshaft, bearings, seals
Fuel System:
Carburetor, fuel pump, fuel lines, tank
Ignition System:
Spark plugs, coils, stator, power pack
Electrical System:
Charging system, starting system, wiring diagrams
Cooling System:
Water pump, impeller, thermostat, cooling passages
Lower Unit:
Gearcase, propeller, driveshaft, water pump
Power Trim and Tilt:
Hydraulic system, pump, cylinders (if equipped)
Steering System:
Remote control, cables, tiller handle
Mid-Section:
Mounts, brackets, exhaust housing
Troubleshooting:
Starting problems, overheating, fuel delivery issues
Tune-up:
Spark plug replacement, timing adjustment, carburetor adjustment
Lubrication:
Gearcase oil change, grease points
Diagnosis:
Common issues such as starting, overheating, fuel delivery
Repair:
Component removal, disassembly, inspection, reassembly
Maintenance:
Periodic service tasks
Wiring Diagrams:
Electrical schematics
Specifications:
Torque values, clearances, fluid capacities
Diagrams:
Exploded views, illustrations
Step-by-Step:
Detailed instructions with numbered steps
Parts Information:
Part numbers and identification
File Format:
PDF (searchable, bookmarked, zoomable)
Compatibility:
Windows, macOS, Linux, iOS, and Android — any device with a PDF reader
Requirements:
A PDF reader application (e.g. Adobe Acrobat Reader, free)
Searchability:
Fully text searchable for fast lookup of any topic
Print Quality:
High-resolution digital pages, printable at full clarity
Binding Type:
N/A — digital download, no physical binding
Paper Type:
N/A — digital download, no physical paper
Engine Type:
2-stroke, water-cooled, gasoline
Cylinders:
2-cylinder inline
Displacement:
45.6 cu in (747 cc)
Bore x Stroke:
3.375 in x 2.550 in (85.7 mm x 64.8 mm)
Full Throttle RPM Range:
4500-5500 RPM
Fuel Type:
Regular gasoline, 50:1 fuel/oil mix
Ignition System:
CDI (Capacitor Discharge Ignition)
Cooling System:
Water-cooled, thermostat controlled
Lubrication System:
Pre-mixed fuel/oil
Starting System:
Manual or electric (depending on model)
Infotainment:
N/A - not equipped on outboard motors
Instrumentation:
Tachometer, trim gauge, warning lights (optional)
Control System:
Remote control or tiller handle
Trim and Tilt:
Optional power trim and tilt
Break-In Period:
10 hours with specified RPM limits
Gearcase Oil Change:
Every 100 hours or annually
Spark Plug Replacement:
Every 100 hours or annually
Water Pump Impeller:
Every 200 hours or annually
Fuel Filter:
Every 100 hours or annually
Thermostat:
Every 2 years or as needed
Fluid Specifications:
Gearcase: OMC Premium Blend Gearcase Lube or equivalent
Fuel/Oil Mix:
50:1 (regular gasoline and TC-W3 oil)
Common Wear Items:
Impeller, spark plugs, anodes, fuel lines, carburetor gaskets
Known Issues:
Overheating due to impeller failure, fuel delivery problems, electrical corrosion
Manufacturer:
Outboard Marine Corporation (OMC)
Brand Heritage:
Johnson and Evinrude are long-standing American outboard brands
Model Evolution:
55 HP model produced from 1973 to 1990 with gradual updates
Production Location:
United States (specific plant not specified)
Legacy:
Known for durability and widespread use in recreational boating