🏷️ Basic Information Identification Make: Yamaha Model: Grizzly 125 Model Variants Covered: • YFM125S • YFM125GT • YFM125GHT (Hunter) • YFM125GHV (Hunter - Hardwoods HD Camo) • YFM125GV • YFM125GW • YFM125GHW (Hunter) • YFM125GHX (Hunter) • YFM125GXGR • YFM125GXL • YFM125GYB • YFM125GYGR • YFM125GZGR Generation Production Years: 2004-2010 Codes Chassis Codes: YFM125S (indicative, specific model year codes may vary slightly but are generally consistent for this platform) 👋 Introduction Market Position Positioning: The Yamaha Grizzly 125 (2004-2010) was positioned as an entry-level, youth-oriented, or recreational ATV designed for general trail riding and light utility tasks. It offered a balance of affordability, user-friendliness, and the reliability associated with the Yamaha brand. Competitive Analysis Competitors: Competed with similar displacement ATVs from manufacturers like Honda (e.g., TRX90/125 models), Suzuki (e.g., LT-Z90/160), and Kawasaki (e.g., KFX90/110). Key Features Features: • Automatic transmission (CVT) • Electric start • Shaft drive (eliminating chain maintenance) • Disc brakes • Independent Front Suspension (IFS) and Swingarm Rear Suspension • Robust chassis for trail riding • Various camouflage options available for 'Hunter' models. 📋 Manual Details Coverage Areas Areas: • General Information • Maintenance • Fuel System • Cooling System • Engine • Transmission • Clutching • Final Drive • Body and Frame • Steering and Suspension • Brakes • Electrical System • Wiring Diagrams • Troubleshooting Page Count Estimated Page Count: Varies by specific publication, but typically 300-500 pages for a comprehensive factory service manual. Manual Type Type: Factory Service Manual / Repair Manual Language Language: English Format Format: Digital Downloadable (likely PDF) 📖 Manual Coverage Systems Covered Systems: • Engine Mechanical (Top End, Bottom End, Cylinder Head, Piston, Crankshaft, Valves) • Fuel Delivery System (Carburetor, Fuel Lines, Fuel Tank) • Cooling System (Radiator, Fan, Thermostat, Coolant) • Ignition System (CDI, Spark Plug, Coil) • Starting System (Starter Motor, Bendix) • Lubrication System (Oil Pump, Oil Filter) • Exhaust System • Transmission System (Primary Drive, Secondary Drive, Gears, Bearings) • Clutch System (Centrifugal Clutch, Belt) • Final Drive System (Gearbox, Driveshaft, Axles, Differentials) • Suspension System (Front and Rear Shocks/Springs, A-arms, Bushings) • Steering System (Handlebars, Tie Rods, Steering Knuckles) • Brake System (Front and Rear Calipers, Rotors, Master Cylinders, Lines) • Wheels and Tires • Chassis and Frame • Body Panels and Trim • Electrical System (Battery, Charging System, Lighting, Switches, Fuses, Relays) • Wiring Harnesses and Diagrams Procedures Included Procedures: • Routine Maintenance (Oil Changes, Filter Replacements, Spark Plug Gap, Air Filter Cleaning) • Component Removal and Installation (Step-by-step instructions) • Disassembly and Reassembly (Detailed breakdown of systems) • Component Inspection and Testing • Adjustment Procedures (Carburetor, Brakes, Clutch) • Troubleshooting Guides (Symptom-based diagnostics) • Torque Specifications • Clearance Measurements • Lubrication Points and Specifications • Wiring Diagram Interpretation • Overhaul Procedures Technical Depth Depth: Comprehensive factory-level detail suitable for professional technicians and advanced DIY mechanics. Covers everything from basic maintenance to complete engine and transmission rebuilds. 📊 Manual Specifications File Format Format: PDF (Portable Document Format). Compatible with most operating systems and devices without special software. Print Quality Quality: Identical to a printed repair book. Implies high-resolution images, clear diagrams, and searchable text if created from OCR or original digital sources. Binding Type Binding: N/A (Digital format, no physical binding) Paper Type Paper: N/A (Digital format, no physical paper) ⚙️ Engine Specifications Primary Engine Engine Type: 4-stroke, SOHC, Air-Cooled, Single-Cylinder Performance Displacement: 125cc Bore X Stroke: Typically around 54mm x 54mm (exact figures may vary slightly based on exact model year, consult manual for precision). Compression Ratio: Around 9.5:1 to 10:1 (consult manual for precise spec). Fuel System Carburetor Type: Mikuni VM Series (e.g., VM17SH or similar). Fuel Type: Unleaded gasoline Fuel Capacity: Approximately 2.0 gallons (7.5 L) (consult manual for exact specification). Ignition Ignition System: CDI (Capacitor Discharge Ignition) Lubrication Oil Type: Yamaha-recommended 4-stroke motorcycle oil, SAE 10W-30 or 20W-40 (viscosity may vary with ambient temperature). Always consult the manual for the specific recommended viscosity and API service classification. Oil Capacity: Approximately 1.5 U.S. quarts (1.4 L) with filter change (consult manual for precise capacity). 🔧 Transmission Standard Type: Automatic, Continuously Variable Transmission (CVT) with V-belt drive. Optional Optional Types: N/A (CVT was standard for this model). Features Drive System: Shaft Drive (single rear axle, with potential for locked differential engagement on some variants or through specific mechanisms, but the core is shaft drive). Transmission Oil Type: Typically gear oil (e.g., SAE 80 or 90 API GL-4) for the final drive gearbox. Consult manual for specific grade and capacity. 📐 Dimensions Exterior Length: Approximately 70.1 inches (1780 mm) (consult manual for exact specification). Width: Approximately 37.4 inches (950 mm) (consult manual for exact specification). Height: Approximately 41.7 inches (1059 mm) (consult manual for exact specification). Wheelbase: Approximately 45.3 inches (1150 mm) (consult manual for exact specification). Weights Dry Weight: Approximately 255 lbs...