Mercury 45hp, 50hp, 60hp, 65hp, 70hp, 75hp, 80hp, 85hp, 90hp, 100hp, 115hp Outboard Motor Diagnostic & Repair Manual (1965-1989)
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Models Covered & Key Technical Specifications
- 5 hp, 4 cyl (1965-1970)
- 50 hp, 3 cyl (1986-1989)
- 500/50 hp, 4 cyl (1965-1985)
- 60 hp, 3 cyl (1984-1989)
- 650/65 hp, 3 cyl (1972-1976)
- 650/65 hp, 4 cyl (1965-1971)
- 650, 700/70 hp, 3 cyl (1976-1983)
- 70 hp, 3 cyl (1986-1989)
- 75 hp, 4 cyl (1984-1986)
- 80 hp, 3 cyl (1987-1989)
- 800/80 hp, 4 cyl (1969-1983)
- 850/85 hp, 4 cyl (1973-1977)
- 90 hp, 3 cyl (1987-1989)
- 850XS/90 hp, 4 cyl (1976)
- 100 hp, 4 cyl (1988-1989)
- 115 hp, 4 cyl (1988-1989)
Professional Workshop Service Manual & Technical Specifications
The Definitive Repair Manual for Classic Mercury 45 HP to 115 HP 2-Stroke Outboards (1965-1989)
Ensure peak performance and reliable service for your vintage Mercury outboard with this comprehensive diagnostic and repair manual.
If you own or service a classic mid-range Mercury engine manufactured between 1965 and 1989, this manual is the single most crucial resource you will find. It provides factory-level detail for the entire line of 2-Stroke engines spanning from 45 horsepower all the way up to 115 horsepower. Stop guessing and start repairing with confidence.
Unmatched Model Coverage: Are Your Engines Inside?
This book meticulously covers every variation within the 45 HP to 115 HP range, including specific model designations and engine configurations (3-cylinder and 4-cylinder) throughout the entire 25-year production run.
Covered Horsepower & Model Series:
- 45 HP: All 4-cylinder models (1965-1970).
- 50 HP: Includes both the later 3-cylinder (1986-1989) and the iconic 4-cylinder 500/50 HP series (1965-1985).
- 60 HP: All 3-cylinder engines (1984-1989).
- 65 HP: Detailed coverage for both 3-cylinder (1972-1976) and early 4-cylinder 650/65 HP models (1965-1971).
- 70 HP: Service information for all 3-cylinder models, including the 650, 700/70 HP designation (1976-1989).
- 75 HP: 4-cylinder models (1984-1986).
- 80 HP: Covers the 3-cylinder (1987-1989) and the older 4-cylinder 800/80 HP series (1969-1983).
- 85 HP: 4-cylinder 850/85 HP models (1973-1977).
- 90 HP: Includes both the standard 3-cylinder (1987-1989) and the rare 4-cylinder 850XS/90 HP model (1976).
- 100 HP & 115 HP: Complete service for the later 4-cylinder engines (1988-1989).
Key Areas of Expertise: What You Will Learn
This repair manual transforms complex service jobs into straightforward, step-by-step procedures. For every model listed above, you receive the detailed instructions needed to perform maintenance, diagnostics, and overhauls.
Critical Service Chapters Include:
- Powerhead Overhaul: From disassembly and inspection of the crankshaft and cylinder block to final reassembly, ensuring a professional-grade rebuild.
- Fuel System Service: Complete carburetor inspection, cleaning, rebuilding, and adjustment procedures for smooth idling and top-end performance.
- Ignition & Electrical Diagnostics: Clear wiring diagrams, coil testing, timing adjustment, and essential troubleshooting charts for reliable starting.
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