The Mazda MX-5 Miata, first generation (NA chassis), represents a celebrated return to the lightweight, affordable sports car segment. Produced for the 1991, 1992, and 1993 model years, this iconic vehicle is renowned for its exceptional handling, accessible performance, and pure open-top driving experience. Its engineering prioritizes driver engagement, making it a beloved choice for enthusiasts seeking a connection with the road. Key selling points include its legendary reliability, agile chassis, and timeless, approachable styling, all contributing to its enduring appeal and status as a modern classic. This factory workshop service manual provides comprehensive guidance for the maintenance, diagnostics, and repair of the Mazda MX-5 Miata (NA). Covering essential areas such as the powertrain, drivetrain, chassis, and electrical systems, the manual details specific procedures for scheduled maintenance, component replacement, and troubleshooting. It includes critical technical specifications, torque values, and information on specialized tools required for various tasks. This resource is designed to empower owners and professional technicians alike, ensuring the proper upkeep and longevity of this cherished automotive icon. 🏷️ Basic Information Identification Make: Mazda Model: MX-5 Miata Chassis Code: NA Generation: First Generation (NA) Codes Covered Years: 1991, 1992, 1993 👋 Introduction Market Position Segment: Lightweight, affordable sports car Competitors: Lotus Elan, Triumph Spitfire, MG Midget (historical); later Porsche Boxster, BMW Z3 Competitive Analysis Key Selling Points: Reliability, accessible performance, excellent handling, open-top driving experience, iconic styling Key Features Manual Value Proposition: Empowers owners and independent mechanics with factory-level repair and maintenance knowledge, crucial for preserving the classic status of the NA Miata. 📋 Manual Details Coverage Areas Primary Coverage: Workshop service and repair procedures Secondary Coverage: Maintenance, diagnostics, troubleshooting Page Count Estimated Pages: Approximately 1000+ pages (typical for comprehensive workshop manuals) Manual Type Type: Official Factory Workshop Service Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Powertrain: Engine, Fuel System, Ignition System, Exhaust System, Cooling System Drivetrain: Transmission (Manual & Automatic), Clutch, Driveshafts, Differential, Axles Chassis: Suspension (Front & Rear), Steering System, Brakes (Hydraulic & Parking), Wheels & Tires Electrical: Wiring Diagrams, Battery, Charging System, Starting System, Lighting, Instrumentation, Powertrain Control Module (PCM), Body Control Module (BCM) Body: Exterior Panels, Interior Trim, Doors, Windows, Seats, HVAC System Procedures Included Maintenance: Scheduled maintenance, fluid changes, filter replacements, lubrication Repair: Engine overhaul, transmission repair, brake component replacement, suspension component replacement, electrical component repair Diagnostics: Troubleshooting charts, diagnostic trouble codes (DTCs), fault finding for all major systems Specifications: Torque specifications, tolerances, alignment data, electrical specifications Special Tools: Identification and usage of specialized tools required for specific procedures Technical Depth Depth: Comprehensive, covering everything from basic fluid checks to complete engine and transmission rebuilds. 📊 Manual Specifications File Format File Type: PDF Searchability: Likely text-searchable (depending on original scan quality) Print Quality Printability: Printable for workshop use Binding Type Binding: N/A (Digital PDF) Paper Type Paper Type: N/A (Digital PDF) ⚙️ Engine Specifications Primary Engine Engine Code: B6ZE (1.6L) Engine Type: Naturally Aspirated Inline 4-Cylinder Displacement: 1598 cc (1.6 Liters) Performance Horsepower: 115 hp @ 6500 rpm (1991-1993 models) Torque: 100 lb-ft @ 5000 rpm (1991-1993 models) Fuel System Fuel Delivery: Multi-point Fuel Injection (MPI) Fuel Type: Unleaded Gasoline (87 Octane or higher recommended) Engine Management ECU Type: Engine Control Unit (ECU) with integrated diagnostics 🔧 Transmission Standard Transmission Type: 5-Speed Manual Optional Transmission Type: 4-Speed Automatic Features Clutch Type: Hydraulically Actuated Dry Single Plate Clutch Fluid Specifications Manual Transmission Fluid: GL-1 or GL-4 Gear Oil, SAE 75W-90 Automatic Transmission Fluid: Dexron III Automatic Transmission Fluid (ATF) 📐 Dimensions Exterior Length: 155.7 inches (3955 mm) Width: 66.1 inches (1680 mm) Height: 48.4 inches (1230 mm) Wheelbase: 89.2 inches (2265 mm) Weights Curb Weight: Approx. 2150 lbs (975 kg) Gross Vehicle Weight Rating: Approx. 3000 lbs (1360 kg) 🛡️ Safety Features Ratings NHTSA Rollover Resistance: 4/5 stars (for soft top models) Active Features Brakes: Front: Ventilated Discs, Rear: Solid Discs ABS: Optional on some models, standard on later NA variants Passive Features Airbags: Driver-side airbag standard Rollover Protection: Reinforced windshield frame and optional roll bar 💡 Technology Features Infotainment Audio System: Factory AM/FM Cassette player with optional CD changer preparation. Upgrades common. Driver Assistance Cruise Control: Optional on most models Connectivity No Modern Connectivity: No factory-integrated Bluetooth, USB, or smartphone connectivity. 🔧 Maintenance Service Intervals Oil Change: Every 5,000 miles (8,000 km) or 6 months Oil Filter Change: Every 5,000 miles (8,000 km) or 6 months (concurrent with oil change) Engine Air Filter: Every 15,000 miles (24,000 km) or 12 months Spark Plugs: Inspect every 30,000 miles (48,000 km), replace as needed (typically every 60,000 miles / 96,000 km) Timing Belt: Replace every 60,000 miles (96,000 km) or 5 years (critical maintenance item) Fluid Specifications Engine Oil Type: API SG or higher, SAE 10W-30 (preferred) or 10W-40 Engine Oil Capacity: 3.7 US quarts (3.5 liters) with filter Coolant...