🏷️ Basic Information Identification Make: Subaru Model: Justy Year: 1990 Generation Generation Code: KJ Codes Chassis Code: KJ8 👋 Introduction Market Position Target Audience: Professional mechanics, DIY enthusiasts, and Subaru Justy owners seeking to perform maintenance and repairs. Competitive Analysis Value Proposition: Cost-effective alternative to expensive OEM paper manuals, providing comprehensive information for all repair and maintenance needs. Key Features Content Breadth: Over 80 separate PDF sections covering all aspects of the vehicle. Accessibility: Works on Mac and Windows via Adobe Acrobat Reader. 📋 Manual Details Coverage Areas Covered Models: All 1990 Subaru Justy Models Page Count Estimated Page Count: >1000 Manual Type Manual Type: Service and Repair Manual Language Language: English Format Format Type: Digital (PDF Sections) 📖 Manual Coverage Systems Covered Engine Systems: Engine overhaul, diagnosis, tuning, emissions control, cooling system, lubrication system, fuel system (carburetor/injection), ignition system, starting system, charging system Drivetrain Systems: Front-wheel drive (FWD), All-wheel drive (AWD) system components, differentials, axles, CV joints Transmission Systems: Manual transmission (gearbox, clutch, linkage), automatic transmission (if applicable, likely not for 1990 base model) repair and adjustment Suspension Steering Systems: Front and rear suspension components, shock absorbers, springs, steering gearbox, power steering (if equipped), steering column, wheel alignment specifications Brake Systems: Front disc brakes, rear drum brakes (typical for the era), brake fluid specifications, hydraulic system repair, parking brake system Electrical Systems: Wiring schematics (comprehensive), lighting systems, instrument cluster, power windows/locks (if equipped), starter motor, alternator, battery, fuses, relays, diagnostic connectors Body And Chassis Systems: Body panel removal and installation, interior trim, doors, windows, locks, hinges, glass replacement, chassis lubrication, rust prevention Procedures Included Maintenance Procedures: Oil changes, filter replacements, spark plug replacement, fluid checks and top-offs, tire rotations, brake inspections, battery maintenance, tune-ups Repair Procedures: Engine rebuilds, clutch replacement, transmission overhaul, brake caliper/wheel cylinder service, suspension component replacement, electrical component diagnosis and replacement, exhaust system repair Diagnostic Procedures: Troubleshooting common symptoms, using diagnostic tools, interpreting fault codes (if applicable), electrical system diagnostics Installation Procedures: Installation of replacement parts, accessory installation guidelines (if covered) Technical Depth Depth Level: Comprehensive: Covers routine maintenance, troubleshooting, component-level repair, and full system overhauls. Detail Level: Detailed diagrams, step-by-step instructions, torque specifications, clearances, and diagnostic flowcharts. 📊 Manual Specifications File Format File Type: PDF Searchability: Searchable text within PDF files Print Quality Printability: Printable pages as needed Binding Type Binding Type: N/A (Digital Format) Paper Type Paper Type: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Type: Inline 3-Cylinder, 4-Stroke, SOHC Engine Code: EK33 (typical for this generation) Displacement: 1.0 L (997 cc) Bore X Stroke: 74.7 mm x 77.0 mm (typical) Compression Ratio: 9.5:1 (typical) Performance Horsepower: Approx. 55-60 hp @ 6000 rpm (market dependent) Torque: Approx. 56-60 lb-ft @ 3600 rpm (market dependent) Fuel System Fuel Delivery: Carburetor (likely Hitachi or Mikuni twin-choke) or Electronic Fuel Injection (EFI) depending on market and trim. Fuel Type: Unleaded Gasoline Fuel Pump Pressure: Refer to manual for specific EFI models, typically 35-45 psi. Ignition System Ignition Type: Distributorless Ignition System (DIS) or distributor-based system with electronic control. Spark Plug Type: NGK DCPR7E or equivalent (check manual for exact spec) Spark Plug Gap: 0.032 in (0.8 mm) (typical) 🔧 Transmission Standard Transmission Type: 5-Speed Manual Transmission Optional Transmission Type: ECVT (Electronically Controlled Continuously Variable Transmission) - Optional in some markets. Features Gear Ratios: Refer to manual for specific ratios (e.g., 1st Gear: ~3.54, 2nd Gear: ~2.05, 3rd Gear: ~1.38, 4th Gear: ~1.03, 5th Gear: ~0.85, Reverse: ~3.42, Final Drive: ~4.11) Transmission Fluid Type: API GL-4 SAE 75W-90 Gear Oil (manual transmission) or Subaru ATF-HP (ECVT - if equipped). 📐 Dimensions Exterior Length: Approx. 3670 mm (144.5 in) Width: Approx. 1580 mm (62.2 in) Height: Approx. 1360 mm (53.5 in) Wheelbase: Approx. 2300 mm (90.6 in) Ground Clearance: Approx. 150 mm (5.9 in) Weights Curb Weight: Approx. 780-850 kg (1720-1875 lbs) depending on drivetrain. 🛡️ Safety Features Ratings Crash Test Data: Limited data available for this era and model; NTHSA/IIHS ratings from this period are often incomplete or not comparable to modern standards. Active Features Braking System: Front ventilated disc brakes, rear drum brakes. Anti-lock Braking System (ABS) was not typically available on this model. Passive Features Restraints: Seat belts (manual adjustment, 3-point front, 2-point rear bench typical). Chassis Design: Unibody construction with crumple zones (basic for the era). 💡 Technology Features Infotainment Audio System: Basic AM/FM stereo radio with cassette player. Aftermarket upgrades common. Driver Assistance ABS: Not typically equipped with Anti-lock Braking System (ABS). Connectivity Connectivity Features: Limited to basic radio functionality; no advanced connectivity options like Bluetooth or USB. 🔧 Maintenance Service Intervals Oil Change Interval: Every 5,000 miles or 6 months, whichever comes first (typical recommendation). Air Filter Replacement: Every 15,000-20,000 miles or as needed based on inspection. Spark Plug Replacement: Every 30,000 miles (check manual for specific plug type and interval)....
Manual transmission (gearbox, clutch, linkage), automatic transmission (if applicable, likely not for 1990 base model) repair and adjustment
Suspension Steering Systems:
Front and rear suspension components, shock absorbers, springs, steering gearbox, power steering (if equipped), steering column, wheel alignment specifications
Brake Systems:
Front disc brakes, rear drum brakes (typical for the era), brake fluid specifications, hydraulic system repair, parking brake system
Aging wiring harnesses and connectors can lead to intermittent electrical issues.
Rust Prone Areas:
Wheel arches, rocker panels, and chassis components can be susceptible to rust, especially in areas with harsh winters.
📚 Vehicle History
Brand Heritage
Subaru Philosophy:
Subaru has a long history of producing reliable and durable vehicles, often with a focus on AWD technology and practical design.
Model Evolution
Justy Introduction:
The Subaru Justy (also known as the Subaru J10 in some markets) was introduced in the mid-1980s as Subaru's entry into the subcompact car segment, competing with vehicles like the Honda Civic and Toyota Starlet.
Second Generation:
The 1990 model year represents the second generation of the Justy (KJ), which saw styling updates and potential mechanical refinements over the first generation.
Production
Manufacturing Location:
Primarily manufactured in Japan by Subaru (Fuji Heavy Industries).
🏆 Awards & Recognition
Recognitions
Market Reception:
The Justy was generally well-received for its affordability, fuel efficiency, and surprisingly capable AWD system (when equipped), particularly in markets where small, economical cars were in demand.
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