Basic Information Identification Make: Chrysler Model: 120 HP Outboard Year: 1973 Vehicle Type: Outboard Motor Introduction Market Position Target Audience: Boat owners with basic mechanical skills and independent service professionals. Competitive Analysis Advantage: Provides factory-level repair information, enabling users to perform dealership-quality maintenance and repairs, saving significant costs. Key Features Uniqueness: Vehicle-specific information, not generic. Includes step-by-step instructions, diagrams, illustrations, wiring schematics, and specifications. Value Proposition Cost Savings: Potential to pay for itself on the first maintenance task (e.g., oil change, spark plug replacement), saving hundreds to thousands in repair bills. Manual Details Coverage Areas Systems Covered: Engine, Fuel System, Ignition System, Electrical System, Starter System (Electric & Manual), Carburetor, Gear Housing, Motor Leg, Steering, Powerhead Page Count Estimated Page Count: Extensive (Specific number not provided in product info, but implied to be comprehensive) Manual Type Type: Service Repair Workshop Manual Language Language: English Format Format: PDF Download Manual Coverage Systems Covered Engine Mechanical: Detailed disassembly, inspection, repair, and reassembly of all engine components including the powerhead. Fuel System: Comprehensive coverage of the fuel delivery system, including fuel pumps, lines, and carburetor maintenance and adjustment. Ignition System: Detailed instructions on the magneto ignition system, including timing, coil testing, and component replacement. Electrical System: Includes wiring schematics, alternator operation, and troubleshooting of electrical components. Starting System: Covers both electric starter and manual starter mechanisms, including troubleshooting and repair. Gear Housing And Drive: Detailed procedures for servicing the gear housing, including lubrication, gear inspection, and propeller shaft maintenance. Cooling System: Implied coverage of water pump and cooling passages essential for outboard operation. Procedures Included Tune Up: Step-by-step tune-up procedures, including spark plug gap and ignition timing adjustments. Troubleshooting: Extensive troubleshooting guides for common and complex issues, aided by diagrams and diagnostic flowcharts. Repair And Rebuild: Complete repair and rebuild instructions for all major components. Maintenance: Covers routine maintenance tasks for optimal performance and longevity. Technical Depth Depth: Comprehensive, covering from basic maintenance to advanced repair and diagnostics, equivalent to dealership service manuals. Manual Specifications File Format File Type: PDF Print Quality Printability: Yes, all pages are printable. Binding Type Binding: Digital (PDF) - No physical binding. Paper Type Digital Paper Equivalent: High-resolution digital document suitable for viewing on various devices and printing. Engine Specifications Primary Engine Horsepower: 120 HP Performance Torque Specifications: Detailed torque specifications provided for critical engine components. Fuel System Carburetor: Specific carburetor service, adjustment, and troubleshooting procedures are included. Engine Type Configuration: Implied to be a 2-stroke, inline 4-cylinder based on typical outboard configurations of this era and horsepower class. Transmission Standard Type: Outboard Lower Unit (Gear Housing) with forward, neutral, and reverse gearing. Optional Features: Not applicable for outboard transmission options in this context. Features Lubrication: Manual includes procedures for checking and changing gearcase lubricant. Dimensions Exterior Not Applicable: Specific dimensions are not detailed in the product description, as the manual focuses on mechanical aspects. Safety Features Ratings Not Applicable: No safety ratings are provided in the product description for the manual itself. Active Features Not Applicable: Focus is on repair procedures, not active safety features of the outboard. Passive Features Not Applicable: Focus is on repair procedures, not passive safety features of the outboard. Technology Features Infotainment Not Applicable: This is a mechanical component; infotainment is not relevant. Driver Assistance Not Applicable: This is a mechanical component; driver assistance is not relevant. Connectivity Not Applicable: This is a mechanical component; connectivity is not relevant. Maintenance Service Intervals Implied Intervals: Manual provides guidance for regular maintenance tasks like tune-ups, lubrication, and spark plug replacement, implying standard intervals for these. Fluid Specifications Gear Oil: Manual likely specifies the correct type and viscosity of gear lubricant for the lower unit. 2 Stroke Oil Mix: Manual will specify the correct oil-to-fuel ratio for the 2-stroke engine. Known Issues Common Repairs: The manual's detailed coverage of carburetor, ignition, and starter systems suggests these are common areas of attention for outboards of this vintage. Vehicle History Brand Heritage Manufacturer: Chrysler Marine was a division of the Chrysler Corporation, known for producing marine engines and boats. Model Evolution Era Context: Represents a mid-tier horsepower outboard from the early 1970s, a period of significant development in outboard motor technology. Production Production Period: 1973 model year. Awards & Recognition Recognitions Not Applicable: No awards or certifications are mentioned for this manual.