🏷️ Basic Information Identification Make: Polaris Model: Apollo 340 Year: 1979 Product Type: Service/Shop Repair Manual Format: PDF Download 👋 Introduction Market Position Product Purpose: To provide comprehensive repair and maintenance information for the 1979 Polaris Apollo 340 snowmobile, enabling owners to perform service tasks themselves. Competitive Analysis Value Proposition: Offers factory-level technical data and procedures at a fraction of the cost of professional shop labor, empowering owners with the knowledge to maintain and repair their vintage snowmobile. Key Features Key Selling Points: Extensive page count, detailed illustrations, step-by-step instructions, troubleshooting guides, factory specifications, searchable PDF format. 📋 Manual Details Coverage Areas Primary Coverage: 1979 Polaris Apollo 340 Snowmobile Page Count Page Count: 189 Manual Type Manual Type: Factory Service Manual Language Language: English Format File Size: 11.5 MB 📖 Manual Coverage Systems Covered Engine Systems: Engine identification, disassembly, inspection, assembly, lubrication, cooling, fuel system, ignition system, exhaust system Drivetrain Systems: Clutch operation and service (primary and secondary), drive chain, track system inspection and adjustment Chassis Systems: Frame, suspension (front and rear), steering system, skis, brakes Electrical Systems: Ignition system troubleshooting, lighting, basic electrical component testing Body And Controls: Handlebar controls, seat, body panels, controls linkage Exhaust System: Inspection, cleaning, and potential repair of the exhaust system components. Procedures Included Maintenance Procedures: Routine maintenance checks, lubrication, spark plug replacement, air filter cleaning/replacement, clutch maintenance Diagnostic Procedures: Troubleshooting common starting issues, engine performance problems, clutch slippage, track binding Repair Procedures: Engine rebuilds, carburetor adjustment, clutch service, brake system repair, steering component replacement Overhaul Procedures: Complete engine overhaul, drivetrain component overhaul Carburetor Overhaul: Detailed instructions for disassembly, cleaning, and reassembly of the carburetors, including jetting specifications. Track Replacement: Guidance on track removal and installation, as well as inspection for wear and damage. Technical Depth Depth Of Coverage: Comprehensive, covering everything from basic maintenance to major component overhauls. Designed for both novice and experienced technicians. Documentation Style: Step-by-step instructions with hundreds of illustrations to guide the user. Repair Manual Purpose: Empowers owners to perform their own repairs, saving on labor costs and ensuring correct procedures are followed. 📊 Manual Specifications File Format File Format: PDF Print Quality Print Quality: High-resolution, optimized for clear viewing and printing of all diagrams and text. Binding Type Binding Type: Not Applicable (Digital Download) Paper Type Paper Type: Not Applicable (Digital Download) Features Searchability: Fully searchable text for quick access to specific topics. Printability: Printable pages allow for on-the-job use. ⚙️ Engine Specifications Primary Engine Engine Type: Two-stroke, Fan-Cooled, Twin-Cylinder (specific displacement likely 339cc or similar, common for '340' designation) Performance Horsepower Range: Typically in the 25-35 HP range for this era and displacement, though exact figures require manual verification. Torque Curve: Not specified in product data, but manual will detail power delivery characteristics. Fuel System Carburetor Configuration: Likely dual Tillotson or Mikuni carburetors, specific models detailed in the manual. Fuel Type: Pre-mixed gasoline and 2-stroke oil. Manual will specify oil-to-fuel ratio. Ignition System Ignition Type: CDI (Capacitor Discharge Ignition) or similar breakerless system common for the era. Lubrication Lubrication System: Premix lubrication. 🔧 Transmission Clutch System Drive System: CVT (Continuously Variable Transmission) via centrifugal clutch and torque converter/variator system. Primary Clutch Type: Centrifugal clutch with adjustable weights and spring. Secondary Clutch Type: Torque sensing (driven clutch) with adjustable spring and roller assembly. Features Gear Reduction: Integral to the clutch system, providing variable gear reduction for optimal power delivery. Fluid Requirements Clutch Fluid: Not applicable; uses belt and mechanical drive. 📐 Dimensions Exterior Overall Length: Specific dimensions not provided in product data; manual will contain detailed schematics. Weights Dry Weight: Likely in the 300-350 lb range, specific weight details available in the manual. Weight Distribution: Not specified. 🛡️ Safety Features Ratings Crash Test Results: Not applicable for snowmobiles of this era in the same way as cars. Active Features Braking System: Mechanical disc or drum brake, operated by handlebar lever. Manual will detail adjustment and service. Passive Features Kill Switch: Engine kill switch on the handlebar, essential safety feature. Manual covers its operation and maintenance. Track Guard: Ensures proper track alignment and guards against debris ingestion. 💡 Technology Features Infotainment Infotainment System: Not applicable. Focus is on mechanical operation and essential controls. Driver Assistance Driver Assistance Features: Not applicable. Basic manual controls. Connectivity Connectivity Options: Not applicable. 🔧 Maintenance Service Intervals Oil Change Frequency: Not applicable for 2-stroke premix. Manual will detail fuel/oil mixing ratios and recommended oil types. Spark Plug Replacement: Intervals typically range from 1,000 to 2,500 miles or annually, depending on usage. Manual will provide specific recommendations and gap settings. Clutch Inspection: Recommended before each riding season and periodically throughout, with detailed service intervals in the manual. Track Tension Adjustment: Check and adjust as needed, typically every few hundred miles or after initial break-in. Manual provides specific procedure. Fluid Specifications 2 Stroke Oil: Manual will...