2000 Mercury Optimax 115 / 135 / 150 / 175 Service Manual
Covers Optimax models with detailed procedures for fuel delivery, ignition timing, and starting systems. Includes component part numbers and diagnostic guidance. Ref: 90-859494R1
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Sample pages from the 2000 Mercury Optimax 115 / 135 / 150 / 175 Service Manual manual
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Models Covered & Key Technical Specifications
2000 Mercury Optimax 115 / 135 / 150 / 175 Service Manual: Mercury Outboard 2000 Optimax Service Manual Troubleshooting-Index 2000 Mercury Optimax 115 / 135 / 150 / 175 (90-859494R1) — 2000 Engineering & Technical Reference | Optimax Service Repository.
- Prescribed Cycle Rate: 5500 rpm maximum is specified as the upper throttle governor setting for the 115 and 135 horsepower configuration Bounds.
- Measured Rotation Data: For optimal engine performance, 5750 rpm is the rated high-speed limiting threshold for 150 and 175 horsepower models Topology.
- Core Installation Footprint: The air compressor displacement reaches 7.07 cu. in. (116 cc) with reciprocal piston rotation Matrix.
- Rated Threaded Fastener Data: The cylinder head assembly requires 30 lb-ft (41 Nm) initial torque then 90 degrees additional turn Standards.
- Technical Alignment Specs: Fuel pressure maintains 89 ± 2 psi (613.5 ± 13.8 kPa) against air pressure set to 79 ± 2 psi (544.0 ± 13.8 kPa) Margin.
- Advanced Output Performance: Maximum direct fuel injection discharge achieves 175 horsepower (130.5 kW) at stoichiometric 10 psi differential Protocol.
Professional Workshop Service Manual & Technical Specifications
Specialized Performance Shop Manual: Outboard Motor 2000 Mercury Optimax 115 / 135 / 150 / 175 Service Manual Troubleshooting-Index
Engine-Type: Mercury Optimax // Unit-Designations: 115/135/150/175 HP Outboard Engines // Engine-Type: Marine Direct Fuel Injection
Engine Performance Specifications
| Performance-Element | Operational-Logic | Calibration-Spec |
|---|---|---|
| Horsepower | 115 - 175 HP | N/A |
| Full Throttle RPM | 5000 - 5750 RPM | N/A |
| Idle RPM | 550 ± 25 RPM | N/A |
| Cylinder Bore | 3.501 in. (88.925 mm) | N/A |
| Stroke Length | 2.65 in. (67.3 mm) | N/A |
| Piston Diameter | 3.4925 in. ± .0005 in. | N/A |
Fundamentally requiring adherence to precise service intervals and specifications, this manual details the complete operational framework for Mercury Optimax outboard motors. It covers all essential systems, from ignition and fuel delivery to cooling and electrical components, ensuring optimal performance and longevity. Its structured approach facilitates efficient diagnostics and repairs, aligning with factory standards for engine maintenance.
System operation descriptions cover fuel delivery and air intake systems. This manual details the components within the fuel system, including the high and low pressure pumps, injectors, and associated regulators, ensuring a clear understanding of their function and maintenance requirements.
The documentation addresses the ignition system thoroughly, covering coils, coil drivers, crank position sensors, and throttle position sensors to guarantee accurate spark delivery and timing.
Assembly instructions are detailed for critical components such as the powerhead, mid-section, and gear housing, providing step-by-step guidance for correct installation and reassembly.
Hydraulic schematics are included for power trim and steering systems, crucial for maintaining control and maneuverability of the outboard.
Steering component information is provided for proper adjustment and maintenance, ensuring responsive and safe operation under various conditions.
This manual documents torque specifications for critical fasteners to ensure proper assembly and prevent fastener fatigue prevention. It provides comprehensive guidance for maintaining the integrity and performance of the Mercury Optimax engine.
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