🏷️ Basic Information Identification Make: Arctic Cat Model: El Tigre Model Variants: LT-290, LT-340, LT-400, LT-440, 340 F/A, 440 F/A Years Covered: 1974, 1975 Codes Chassis Codes: Varies by specific model and year (e.g., LT-290, LT-340, etc. - refer to individual machine VIN for precise identification) 👋 Introduction Market Position Historical Market Segment: Performance and trail snowmobiles during a key growth period for the industry. Competitive Analysis Key Competitors: Ski-Doo, Yamaha, Polaris, Scorpion (during the 1970s). Key Features Product Offering Advantage: Comprehensive repair and maintenance information in a convenient, instantly accessible digital format. Brand Philosophy Gearhead Manuals Philosophy: To provide accessible, reliable, and easy-to-use repair documentation for a wide range of vehicles and equipment. 📋 Manual Details Coverage Areas Geographic Coverage: North America (as Arctic Cat is a US-based manufacturer, and snowmobile usage is prevalent in these regions) Page Count Estimated Page Count: Estimated 200-300+ pages (typical for comprehensive repair manuals of this era) Manual Type Manual Type: Service Repair Manual / Workshop Manual Language Language: English Format Digital Format: PDF (Downloadable) 📖 Manual Coverage Systems Covered Engine Systems: Engine removal/installation, engine specifications, lubrication, cooling system, fuel system, intake, exhaust Drivetrain Systems: Transmission, drive chain, sprockets Chassis Systems: Steering system, shocks, body work Electrical Systems: Electrical system (ignition, lighting, controls) Procedures Included Maintenance Procedures: Routine maintenance, lubrication, fluid changes, adjustments Repair Procedures: Engine repair, transmission overhaul, steering system repair, electrical component replacement Troubleshooting Procedures: Advanced troubleshooting, diagnostic procedures for common issues Technical Depth Technical Depth: Comprehensive (from basic adjustments to complete engine rebuilds and system diagnostics) 📊 Manual Specifications File Format File Type: PDF Print Quality Print Quality Considerations: Optimized for digital viewing and printing; high-resolution diagrams and text. Binding Type Binding Type: N/A (Digital Downloadable PDF) Paper Type Paper Type Considerations: N/A (Digital Downloadable PDF - user can print on desired paper) ⚙️ Engine Specifications Primary Engine Engine Type: Two-stroke, piston-ported (likely rotary valve induction on some models, especially F/A variants) Displacement Variants: 290cc, 340cc, 400cc, 440cc (specific engines vary by model and year) Performance Horsepower Range: Estimated 30-60 HP (varies significantly with displacement and tuning) Torque Characteristics: Designed for mid-range power delivery suitable for trail riding and acceleration. Fuel System Fuel Delivery: Carbureted (likely single or dual Mikuni or equivalent carburetors) Lubrication Lubrication System: Pre-mix (gasoline and oil mixture) or oil injection system (especially on F/A models, which might indicate oil injection). Cooling System Cooling Method: Fan-cooled (air-cooled) 🔧 Transmission Standard Transmission Type: Automatic (Clutch type: likely variable ratio CVT driven by centrifugal clutch and torque converter/drive clutch) Features Drive System: Chain drive to track Gear Ratios: Variable (CVT system design) 📐 Dimensions Exterior Track Width: Typically 15 inches (38 cm) for trail models of this era. Weights Dry Weight: Estimated 300-400 lbs (136-181 kg) depending on model and engine. 🛡️ Safety Features Active Features Kill Switch: Standard emergency stop switch, often tethered to the rider. Passive Features Chassis Design: Reinforced frame and bodywork for durability and rider protection. 💡 Technology Features Infotainment Gauges And Instruments: Basic instrumentation typically includes speedometer, tachometer, engine temperature gauge (if equipped), and indicator lights. Driver Assistance No Modern Driver Assistance: As a 1970s snowmobile, there are no modern electronic driver assistance systems. Connectivity No Connectivity Features: No electronic connectivity features present. 🔧 Maintenance Service Intervals Spark Plug Service: Check and clean/replace spark plugs every 50-100 operating hours or annually. Drive Belt Inspection: Inspect drive belt for wear, cracks, and proper tension at the beginning of each season and periodically during operation. Lubrication Points: Lubricate steering components, suspension pivots, and drive clutch bearing as per manual recommendations. Fluid Specifications Fuel Recommendation: Unleaded gasoline with an octane rating of 87 or higher. Consult manual for specific octane recommendations based on engine compression. 2-Stroke Oil Recommendation: High-quality, NMMA TC-W3 certified 2-stroke oil for pre-mix, or specific Arctic Cat-branded oil if used in an injection system. Known Issues Clutch Wear: Clutch sheaves and bushings can wear over time, leading to reduced performance and belt slippage. Carburetor Adjustment: Carburetors may require periodic cleaning and adjustment due to fuel quality and gumming. Track Tension: Track tension needs regular adjustment to prevent excessive wear on the track and suspension components. Electrical Connections: Corrosion and loose connections in the electrical system can cause intermittent operation of lights, ignition, or gauges. 📚 Vehicle History Brand Heritage Arctic Cat Legacy: Arctic Cat has a long-standing reputation for building capable and performance-oriented snowmobiles, particularly in racing and trail riding. Model Evolution El Tigre Positioning: The El Tigre line was often positioned as Arctic Cat's premium trail and performance snowmobile, known for its handling and power. Production Manufacturing Location: Thief River Falls, Minnesota, USA. 🏆 Awards & Recognition Recognitions Historical Industry Acclaim: Arctic Cat models of this era often received positive reviews for their performance and reliability in snowmobile publications of the time.