The Mazda 121, particularly the DB generation produced from 1990 to 1998, represents a significant entry in Mazda's legacy of dependable and economical compact vehicles. This model, available in various body styles including 3-door and 5-door hatchbacks and wagons, was designed with a focus on fuel efficiency and practicality, making it a popular choice for everyday transportation. Powered by 1.3L inline-four engines, often featuring either carbureted or electronic fuel injection systems and available with manual or automatic transmissions, the 121 offered a straightforward yet capable driving experience. While lacking advanced driver-assistance technologies, its engineering prioritized reliability and ease of maintenance, a testament to Mazda's commitment to quality in its compact car offerings. This comprehensive service and repair manual provides essential guidance for the maintenance and repair of the Mazda 121 (DB generation) from 1990 through 1998. It covers a wide array of vehicle systems, including detailed procedures for engine mechanicals, fuel and ignition systems, drivetrain components, chassis elements such as suspension and brakes, and the complete electrical system with wiring diagrams. Furthermore, the manual offers step-by-step instructions for routine maintenance, diagnostics, component repair, and adjustments, empowering both DIY enthusiasts and professional mechanics. With its extensive coverage, this manual serves as an indispensable resource for ensuring the longevity and optimal performance of your Mazda 121. 🏷️ Basic Information Identification Make: Mazda Model: 121 Generation: DA (DB) Product Type: Service and Repair Manual Product Format: PDF Download 👋 Introduction Market Position Target Audience: DIY enthusiasts and professional mechanics Value Proposition: Cost-effective solution for vehicle maintenance and repair, empowering owners to understand and fix their vehicles. Competitive Analysis Manual Advantage: Highly detailed, step-by-step instructions with potential for hundreds of photos/illustrations (as stated in description), covering all aspects of the vehicle for the specified generation. Key Features Diagnostic Tools: Includes sections on Emission Control Information, suggesting coverage of diagnostic procedures for emissions-related issues. 📋 Manual Details Coverage Areas Covered Years: 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998 Vehicle Generation Code: DB (Second Generation) Page Count Estimated Page Count: Extensive (Detailed, comprehensive coverage implies several hundred pages) Manual Type Manual Type: Service Repair Manual Language Language: English Format File Format: PDF 📖 Manual Coverage Systems Covered Engine Systems: Engine mechanical, Fuel system, Ignition system, Emission control system, Cooling system, Lubrication system Drivetrain Systems: Transmission (manual and automatic), Clutch, Drive axles, Differential Chassis Systems: Suspension (front and rear), Steering system, Brakes (hydraulic, mechanical, parking brake) Electrical Systems: Battery, Charging system, Starting system, Lighting system, Instrumentation, Wiring diagrams, ECU (Engine Control Unit) diagnostics Body And Interior: Body panels, Doors, Windows, Seats, Trim, HVAC (Heating, Ventilation, and Air Conditioning) Emission Control: Details on emission control systems, catalytic converter, EGR (Exhaust Gas Recirculation) if applicable, oxygen sensors, and related diagnostic procedures. Procedures Included Maintenance: Scheduled maintenance, Fluid changes, Filter replacements, Lubrication, Tune-ups Diagnostics: Troubleshooting guides, Fault code interpretation, Component testing Repair: Step-by-step repair instructions for all major systems, Engine rebuild, Transmission overhaul, Brake component replacement, Suspension arm replacement Adjustment And Calibration: Wheel alignment, Clutch adjustment, Brake adjustments, Idle speed adjustment Engine Timing Adjustment: Includes procedures for setting ignition timing and camshaft timing (if applicable via timing belt/chain). Wheel Alignment Specifications: Provides camber, caster, and toe specifications for front and rear suspensions. Technical Depth Depth Of Coverage: Comprehensive, covering everything from basic maintenance to complete engine and transmission rebuilds, including detailed electrical schematics and diagnostic procedures. 📊 Manual Specifications File Format File Format: PDF Print Quality Print Quality: Fully Printable Binding Type Binding Type: Digital (PDF) Paper Type Paper Type: Not Applicable (Digital) Interactivity Zoom Functionality: YES (Zoom IN/OUT) Searchability: Implied searchability within the PDF for keywords, enhancing ease of use. Requirements Software Requirements: Adobe PDF Reader & WinZIP Compatibility Operating System Compatibility: All Versions of Windows & Mac ⚙️ Engine Specifications Primary Engine Engine Codes Common: B3 (1.3L I4), E3 (1.3L I4 - EGI), SOHC and DOHC variants possible depending on market and year Performance Horsepower Range: Typically 60-75 HP depending on engine variant and market Torque Range: Typically 75-90 lb-ft depending on engine variant and market Fuel System Fuel Delivery: Carbureted or Electronic Fuel Injection (EFI) depending on market and year Cooling System Cooling System Type: Pressurized liquid cooling system Lubrication System Oil Type Specification: Refer to manual for specific grade (e.g., SAE 10W-30 or 10W-40, API SG or equivalent) 🔧 Transmission Standard Standard Transmission Type: 5-speed Manual Optional Optional Transmission Type: 3-speed or 4-speed Automatic (market dependent) Features Transmission Fluid Type: Refer to manual for specific ATF specification (e.g., Dexron III or equivalent for automatic) 📐 Dimensions Exterior Body Styles: 3-door Hatchback, 5-door Hatchback, 5-door Wagon (market dependent) Weights Curb Weight Range: Approximately 850-1000 kg (1875-2200 lbs) depending on body style and configuration 🛡️ Safety Features Ratings Crash Test Data: Limited public data available for this era of vehicle; manual will detail structural integrity and...