1997-1999 Mercury Optimax 200 / 225 DFI Service Manual
Your 1997-1999 Mercury Optimax 200 & 225 DFI troubleshooting and repair reference is here. Includes detailed diagrams and specifications for optimal performance and maintenance.
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Sample pages from the 1997-1999 Mercury Optimax 200 / 225 DFI Service Manual manual
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Models Covered & Key Technical Specifications
Mercury Optimax 200 / 225 DFI (90-855348R02) - 1997-1999
Your 1997-1999 Mercury Optimax 200 & 225 DFI troubleshooting and repair reference is here. Includes detailed diagrams and specifications for optimal performance and maintenance. | Outboard Motor File
- Measured Horsepower: 200 hp (149.2kW) specifies the base engine power output.
- Baseline Outboard Weight: 507.0 lbs. (230.0kg) establishes the standard operational curb weight.
- Integral Gear Ratio: 1.75:1 is the standard ratio for all models.
- Operational Fuel Pressure: 8-10 PSI @ 5000 RPM signifies the fuel delivery requirement.
- Critical Brush Length: Minimum 0.059 in. (1.5mm) dictates the required brush length for proper function.
- Measured Alternator Output: 30 Amperes @ 750 RPM defines the charging system's output capacity.
Professional Workshop Service Manual & Technical Specifications
Detailed Service Field Manual: Mercury Optimax 200 & 225 DFI (1997-1999) Service Manual - Powertrain-Manual
Conceptual-Layout: Mercury Optimax // Component-Focus: Outboard Motor / Fuel Injection Logic // Conceptual-Layout: DFI 1997-1999
| Specification | Technical-Path | Calibration-Data |
|---|---|---|
| Horsepower | 200 hp (149.2kW) | 225 hp (167.8kW) |
| Outboard Weight | 507.0 lbs. (230.0kg) | 512.0 lbs. (232.0kg) |
| Gear Ratio | 1.75:1 | 1.87:1 |
| Fuel Pressure | 8-10 PSI @ 5000 RPM | N/A |
| Alternator Output | 30 Amperes @ 750 RPM | N/A |
The documentation is partitioned into several key areas:
Systems Overview
- Reassembly procedures are specified for the fuel and ignition systems.
- Service intervals are documented for the entire outboard and its major components.
- Component locations are identified for the fuel injection and ignition systems.
- Service procedures are documented for the fuel pump and electrical systems.
- Calibration requirements are specified for the throttle position sensors.
Procedures and Components
This manual details the various systems within the Mercury Optimax engines, including direct fuel injection, ignition, charging, and starting systems. It outlines procedures for component removal, installation, and troubleshooting to ensure Precise operation and maintenance.
This comprehensive guide provides detailed specifications for fuel pressure, air pressure, and electrical component testing to aid in diagnostics and repairs.
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