🏷️ Basic Information Identification Make: CPI (Chungju Power Industries) Model: Cheetah XS Engine Displacement: 50cc to 90cc (as indicated by model range) Model Range Covered: CPI JR 50, CPI JR 90 Codes Manual Product Code: CPI-JR50-90-CHTXS-SRM-PDF 👋 Introduction Market Position Target Audience: Owners of CPI JR 50-90 Cheetah XS seeking to perform their own maintenance and repairs. Competitive Analysis Value Proposition: Empowers DIY repair, potentially saving costs on professional labor and allowing for tool acquisition. Key Features Unique Selling Point: Comprehensive, step-by-step diagrams for all workshop procedures, facilitating home-based repairs. 📋 Manual Details Coverage Areas Primary Coverage: Service and Repair Scope: Comprehensive workshop procedures for CPI JR 50-90 Cheetah XS models. Page Count Estimated Page Count: Not specified, but described as 'complete' and containing 'detailed instructions and step by step diagrams.' Manual Type Type: Service & Repair Manual / Workshop Manual Language Language: English Format File Format: PDF Download 📖 Manual Coverage Systems Covered Engine: Engine Removal, Engine Installation, Lubrication System, Fuel System, Cylinder Head/Cylinder/Piston, Crankshaft/Crankcase, A.C.G. Generator (likely refers to Alternating Current Generator/Ignition system) Transmission: Transmission System Electrical: Electric System, A.C.G. Generator (likely ignition and charging components) Chassis: Chassis (likely encompassing suspension, brakes, steering, frame, bodywork) Procedures Included Maintenance: Implied by 'service' and 'repair' scope, likely covering routine maintenance tasks. Repair: Detailed instructions and step-by-step diagrams for all workshop procedures. Diagnostics: Implied through troubleshooting of various systems. Technical Depth Depth: Comprehensive workshop level, suitable for DIY enthusiasts and independent mechanics. Covers disassembly, reassembly, and component-level repair. 📊 Manual Specifications File Format Format: PDF Compatibility: All Versions of Windows & Mac Reader Requirement: Adobe PDF Reader Print Quality Quality: Assumed to be high-quality for diagrams and text, enabling printing. Binding Type Binding: Digital Download (N/A for physical binding) Paper Type Paper: Digital (N/A for physical paper type) ⚙️ Engine Specifications Primary Engine Type: Likely a 2-stroke, air-cooled single-cylinder engine, common for this class of scooter/moped. Bore Stroke Typical: Specifics vary by 50cc vs. 90cc, but generally small bore/stroke ratios for high RPM operation. Ignition System: Likely CDI (Capacitor Discharge Ignition) system, managed by the A.C.G. Generator. Performance Horsepower Typical 50Cc: Approximately 3-5 HP (varies by specific model and tuning). Horsepower Typical 90Cc: Approximately 6-8 HP (varies by specific model and tuning). Fuel System Carburetor Type: Likely a simple carburetor, size dependent on engine displacement (e.g., Keihin, Mikuni or similar). Fuel Type: Unleaded Gasoline Oil Mixing: Likely requires pre-mix or has an automatic oil injection system for 2-stroke engines. 🔧 Transmission Standard Type: Automatic Continuously Variable Transmission (CVT) with a belt drive system. Optional Optional Types: N/A for this model type, CVT is standard. Features Gear Ratios: Continuously variable, managed by variator and clutch assembly. Fluid Type: CVT transmission typically requires specific gear oil for the final drive reduction gears. Engine oil for the 2-stroke engine is separate. 📐 Dimensions Exterior Wheelbase: Specific to model, typically in the range of 1000mm-1200mm for 50-90cc scooters. Seat Height: Designed for accessibility, likely around 700mm-750mm. Weights Dry Weight Typical: Approximately 70-90 kg, depending on model and engine size. Payload Capacity: Sufficient for a single rider and light cargo. 🛡️ Safety Features Ratings Crash Test Results: N/A for this category of vehicle, focus is on operational safety. Active Features Braking System: Typically front disc brake and rear drum brake, or dual drum brakes on lower-spec models. Lighting: Headlight, taillight, brake light, turn signals. Passive Features Frame Construction: Steel tube frame, designed for stability and rider support. Tires: Tubeless tires, typically of small diameter (e.g., 10-inch or 12-inch). 💡 Technology Features Infotainment Infotainment System: Basic, typically limited to analog speedometer, odometer, fuel gauge (if equipped), and indicator lights. Driver Assistance Driver Assistance Features: None typical for this class of vehicle. Connectivity Connectivity Features: None. 🔧 Maintenance Service Intervals Oil Change Engine: For 2-stroke engines, this relates to checking and topping up the 2-stroke oil reservoir, typically every few hundred kilometers or as needed based on oil consumption. Spark Plug Replacement: Typically every 3,000-5,000 km, or as indicated by the manual. Air Filter Cleaning: Frequent checks and cleaning (e.g., every 1,000-2,000 km), replacement as needed. Cvt Belt Inspection: Regular inspection for wear and proper tension, replacement typically around 10,000-15,000 km. Fluid Specifications 2 Stroke Oil: API TC or JASO FD certified 2-stroke engine oil (specific brand recommendation would be in the manual). Final Drive Oil: Typically SAE 80W-90 gear oil, capacity usually around 0.1 liters (check manual for exact spec). Known Issues Common Wear Items: CVT belt, variator rollers, brake pads, spark plug, air filter, and carburetor jetting can require periodic maintenance or replacement due to typical usage. Carburetor Issues: Can be susceptible to clogging from stale fuel or debris, requiring cleaning and adjustment. Ignition System Reliability: While generally robust, the A.C.G. generator or CDI unit could be a point of failure over time. 📚 Vehicle History...