1997 Mercury Outboard 65 Jet / 75 / 90 / 100 / 115 / 125 Service Manual
Official Mercury Marine 1997 Outboard Service Manual covering 65 Jet, 75, 90, 100, 115, and 125hp models. PN 90-830234R3
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Sample pages from the 1997 Mercury Outboard 65 Jet / 75 / 90 / 100 / 115 / 125 Service Manual manual
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Models Covered & Key Technical Specifications
Mercury 75 / 75 MARATHON / 75 SEA PRO / 90 / 100 / 115 / 125 / 65/80 JET Outboard Service Manual — 1997 Service Manual | Official Mercury Marine Outboard
- HORSEPOWER (KW): 75 (55.9) kW establishes the rated power output for the Model 75 Outboard.
- OUTBOARD WEIGHT: 315 lbs. (143kg) signifies the standard dry weight for the Model 65 Jet.
- CYLINDER BLOCK: In-line 3 Cylinder, 2 Cycle, Loop Charged 84.6 cu. in. (1387cc) defines the engine displacement.
- STROKE: 2.93 in. (74.42mm) dictates the piston stroke length for optimal operation.
- PISTON: Standard Aluminum Piston 3.495 in. (88.773mm) is the bore diameter for consistent performance.
- FUEL SYSTEM: Gasoline and Oil fuel mixture requires 50:1 (25:1 Break-In) for proper lubrication.
Professional Workshop Service Manual & Technical Specifications
Mercury Marine Outboard 75, 75 MARATHON, 75 SEA PRO, 90, 100, 115, 125, 65/80 JET Outboard Service Manual - Detailed Maintenance & Repair Procedures Powertrain-Manual
Product-Line: Outboard Motor / Unit-Designations: 65 Jet, 75, 90, 100, 115, 125 / Product-Line: Service Manual
| Service-Nexus | Baseline | Context |
|---|---|---|
| Specifications | Master Specifications | Engine Data |
| Operation | Power Trim Operation | Control Adjustments |
| Maintenance | Inspection Schedule | Service Intervals |
| Troubleshooting | Starting System Issues | Component Diagnostics |
| Diagrams | Wiring Diagrams | Electrical Layouts |
| Components | Carburetor Assemblies | Fuel Delivery Mechanisms |
Following OEM groupings, the manual includes sections on Important Information, Electrical Systems (Ignition, Charging and Starting), Fuel Systems (Fuel Pump, Carburetor), and Powerhead. It thoroughly documents procedures for diagnosing and repairing all major components and systems. Proper maintenance procedure replacement fasteners must have the same measurements and strength as those removed. Documents torque specifications for engine components to ensure proper cyclic stress resistance.
Factory specifications are documented for critical engine parameters. Engine rebuild procedures are documented for complete overhauls. Drivetrain specifications are addressed in dedicated sections. Reassembly procedures are specified for all major assemblies. Service intervals are documented to ensure longevity.
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