Positioning:
The Mazda MX-5 (Miata) is a beloved lightweight, rear-wheel-drive roadster renowned for its pure driving experience. This manual targets owners and mechanics who want to maintain, repair, and restore these iconic vehicles.
Comparisons:
Competed against cars like the Toyota MR2, Triumph Spitfire (earlier models), and other small sporty coupes/convertibles. Its key differentiator was accessible, reliable fun-to-drive motoring.
Manual Features:
Detailed, step-by-step instructions, diagnostic procedures, wiring diagrams, troubleshooting guides, illustrations, and information tailored for both professional technicians and dedicated DIY enthusiasts.
Manual Benefits:
Enables owners to save money on repairs, understand their vehicle better, and perform high-quality maintenance and repairs, ensuring longevity and optimal performance.
Years Covered:
1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998
Estimated Page Count:
Extensive (Specific count not provided, but described as 'Full Service Repair Manual' with detailed steps and illustrations, typically 1000+ pages for this type of manual).
Type:
Full Service Repair Manual
Engine:
Yes (Engine mechanical, lubrication, cooling, fuel, exhaust, ignition, emissions, diagnostics)
Transmission:
Yes (Manual and Automatic transmissions, clutch, driveline)
Brakes:
Yes (Brake system hydraulics, disc brakes, parking brake, ABS where applicable)
Suspension Steering:
Yes (Front and rear suspension, steering system, wheel alignment)
Electrical:
Yes (Wiring diagrams, lighting, instruments, ignition, starting, charging, power windows, etc.)
Body Chassis:
Yes (Body panels, doors, windows, interior trim, frame/chassis components)
HVAC:
Yes (Heating, Ventilation, and Air Conditioning system)
Safety Systems:
Yes (Airbags, seat belts, and other safety features relevant to the model years)
Fuel System Details:
Fuel pump, injectors, fuel pressure regulator, evaporative emissions control system.
Ignition System Details:
Ignition coils, spark plugs, distributor (on early models), igniter, ignition timing adjustment.
Maintenance:
Yes (Scheduled maintenance, fluid changes, filter replacements, inspections)
Troubleshooting:
Yes (Diagnostic procedures for common and uncommon issues)
Repair:
Yes (Detailed step-by-step repair instructions for all major components and systems)
Rebuild Refurbish:
Yes (Covers engine rebuild, transmission overhaul, component refurbishment)
Engine Rebuild Procedures:
Piston removal/installation, connecting rod service, crankshaft main bearing replacement, cylinder head overhaul (valve job, gasket replacement).
Transmission Overhaul:
Disassembly, inspection, and reassembly of manual and automatic gearboxes.
Depth:
Comprehensive (Suitable for professional technicians and advanced DIY mechanics, covering diagnostics, repair, and rebuilds).
Diagnostics:
Includes detailed diagnostic procedures, fault code interpretation (if applicable for the era), and step-by-step troubleshooting guides for various systems.
Engine Displacement Early:
1.6 Liters (1597cc)
Engine Displacement Late:
1.8 Liters (1839cc)
Horsepower 1.6L:
113 hp @ 6500 rpm (JDM/USD)
Torque 1.6L:
100 lb-ft @ 5000 rpm (JDM/USD)
Horsepower 1.8L:
125 hp @ 6500 rpm (USD)
Torque 1.8L:
118 lb-ft @ 5000 rpm (USD)
Induction Type:
Naturally Aspirated, Multi-Point Fuel Injection (MPI)
Engine Codes:
B6 (1.6L), BP (1.8L)
Transmission Type Early:
5-Speed Manual
Transmission Type Optional:
4-Speed Automatic
Clutch Type:
Hydraulically actuated dry single-plate clutch
Manual Transmission Codes:
Various codes depending on year and region (e.g., RWD 5-Speed)
Automatic Transmission Codes:
Various codes depending on year and region (e.g., J4A, JF4A)
NHTSA Ratings Early:
Not extensively tested by modern standards, but known for its safety cell and airbag availability (driver-side from 1990, passenger from 1997).
ABS:
Optional on some models, standard on later models (e.g., 1996+ 1.8L).
Airbags:
Driver-side airbag standard from 1990. Passenger-side airbag introduced for 1997 model year.
Rollover Protection:
Reinforced windshield frame and optional factory roll bar.
Oil Change Interval:
Every 5,000 miles or 6 months, whichever comes first (typical recommendation).
Timing Belt Interval:
Every 60,000 miles or 5 years (critical maintenance item for the non-interference B6 engine, and interference BP engine).
Coolant Change Interval:
Every 30,000 miles or 2 years.
Engine Oil Type:
SAE 5W-30 or 10W-30 API SG/SH or higher (check manual for specific viscosity based on temperature).
Transmission Fluid Manual:
GL-4 Gear Oil, SAE 75W-90 (for most transmissions, but verify with manual).
Transmission Fluid Automatic:
Dexron III/Mercon compatible ATF
Coolant Type:
Mazda Long Life Coolant (or equivalent ethylene glycol-based coolant with corrosion inhibitors).
Common Problems:
Crankshaft and camshaft sensor failures, coolant leaks (especially rear stationary seal on BP engine), window regulator issues, rust (particularly sills, wheel arches, and rear quarter panels), aging rubber hoses and bushings, fuel pump issues, seat bolster wear.
Timing Belt Kit:
OEM or aftermarket kits available (e.g., Gates TBK series for BP engines).
Oil Filter:
OEM Mazda B6Y1-14-302A or equivalent (e.g., Fram PH3569, Wix 51515)
Heritage:
Mazda has a history of producing engaging driver's cars, with the MX-5 being a modern interpretation of the classic British sports car formula. It revitalized the affordable sports car segment.
Na Generation Evolution:
The NA generation (1989-1997) received a significant update for the 1994 model year, including a larger 1.8L engine (BP-ZE), revised suspension tuning, updated interior, and aerodynamic tweaks. The 1990-1993 models predominantly featured the 1.6L B6-ZE engine.
Production Period:
1989-1997 (NA generation), with this manual covering the latter half and specific US market variations up to 1998 if applicable.
Manufacturing Location:
Hiroshima, Japan
