🏷️ Basic Information Identification Make: Yamaha Model: YFM350 Bruin / YFM400 Kodiak Type: ATV (All-Terrain Vehicle) Codes Engine Codes Covered: 3GD (YFM350), 3UU (YFM400) 👋 Introduction Market Position Target Audience: Owners, DIY mechanics, professional repair shops working on Yamaha YFM350 Bruin and YFM400 Kodiak ATVs. Competitive Analysis Value Proposition: Provides essential technical data, diagnostic procedures, and repair instructions to maintain and repair these popular Yamaha ATVs efficiently and cost-effectively. Key Features Manual Type Advantage: This is a workshop service manual, offering detailed repair and diagnostic information beyond an owner's manual. Download Convenience: Instant access via PDF download allows immediate use without waiting for physical delivery. 📋 Manual Details Coverage Areas Covered Years: 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Covered Models: YFM350 Bruin Auto 4x4, YFM400 Kodiak 4WD Page Count Estimated Page Count: 500+ Manual Type Manual Type: Complete Workshop Service Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine: Complete engine overhaul, including cylinder head, piston, crankshaft, connecting rod, valve train, lubrication system, cooling system. Transmission: Automatic transmission (CVT), gear shifting mechanisms, final drive, differential, driveshafts, propeller shafts. Drivetrain: 4x4 system engagement, front differential, rear differential, driveshafts, CV joints, hub assembly. Fuel System: Carburetor (Mikuni BSR33/BSR34), fuel tank, fuel pump, fuel filter, fuel lines. Electrical System: Ignition system, charging system (stator, regulator/rectifier), battery, starter motor, lighting, wiring diagrams, fuses, relays, switches. Brakes: Hydraulic brake system, front and rear brake calipers, master cylinders, brake lines, brake pads, brake discs. Suspension: Front and rear suspension, shock absorbers, springs, control arms, ball joints, bushings, steering knuckle. Steering: Steering column, tie rods, steering rack, steering knuckles, steering wheel, U-joints. Cooling System: Radiator, cooling fan, water pump, coolant hoses, thermostat. Exhaust System: Exhaust manifold, muffler, exhaust pipe, heat shields. Body And Chassis: Frame, body panels, fenders, seat, handlebars, skid plates. Procedures Included Maintenance: Routine inspections, oil changes, filter replacements, spark plug replacement, brake adjustments, chain maintenance (if applicable). Troubleshooting: Diagnostic procedures for common problems, fault diagnosis, error code interpretation (if applicable). Repair: Detailed step-by-step instructions for component removal, disassembly, inspection, repair, reassembly, and installation. Overhaul: Complete engine and transmission rebuild procedures. Adjustments: Carburetor adjustment, valve clearance adjustment, clutch adjustment, brake adjustments. Wiring Diagrams: Comprehensive electrical system schematics for fault finding and repairs. Technical Depth Depth Of Coverage: Comprehensive from basic maintenance to complete engine and transmission rebuilds. 📊 Manual Specifications File Format File Type: PDF Print Quality Resolution: High-resolution, suitable for printing. Binding Type Binding: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) Searchability Text Searchability: Searchable text for easy navigation and information retrieval. ⚙️ Engine Specifications Primary Engine Engine Type: 4-stroke, SOHC, air-cooled Displacement Yfm350: 348cc Displacement Yfm400: 392cc Bore X Stroke Yfm350: 83.0 mm x 64.5 mm Bore X Stroke Yfm400: 86.0 mm x 69.0 mm Performance Horsepower Approx Yfm350: 21 HP @ 6500 RPM (est.) Horsepower Approx Yfm400: 23 HP @ 6000 RPM (est.) Torque Approx Yfm350: 20.3 lb-ft @ 5500 RPM (est.) Torque Approx Yfm400: 23.6 lb-ft @ 5000 RPM (est.) Fuel System Carburetor Model Yfm350: Mikuni BSR33 Carburetor Model Yfm400: Mikuni BSR34 Fuel Type: Unleaded gasoline, 87 octane or higher Fuel Tank Capacity Approx: 3.2 US gal 🔧 Transmission Standard Transmission Type: Automatic (CVT - Continuously Variable Transmission) Drive Modes: 2WD / 4WD Features Gear Selection: High, Low, Neutral, Reverse Final Drive: Shaft drive Fluid Type Transmission Fluid: Yamalube 4 (or equivalent SAE 10W-30 API SG or higher) ATV specific lubricant Fluid Capacity Transmission Fluid Capacity: 1.2 L (1.3 US qt) 📐 Dimensions Exterior Length Approx Yfm350: 76.2 in Width Approx Yfm350: 41.9 in Height Approx Yfm350: 44.1 in Wheelbase Approx Yfm350: 49.2 in Weights Dry Weight Approx Yfm350: 556 lbs Dry Weight Approx Yfm400: 595 lbs Cargo Front Rack Capacity Approx: 99 lbs Rear Rack Capacity Approx: 187 lbs Tires Front Tire Size: AT25x8-12 Rear Tire Size: AT25x10-12 Wheel Bolt Pattern: 4/110 mm 🛡️ Safety Features Ratings Safety Features Overview: Designed with rider safety in mind, focusing on stability and control for off-road use. No formal crash ratings apply to ATVs. Active Features Braking System: Hydraulic disc brakes front and rear. Parking Brake: Mechanical drum brake or parking brake mechanism on the transmission output shaft. Passive Features Throttle Limiter: Adjustable throttle stop for beginner riders. Engine Braking: CVT system provides engine braking for downhill control. 💡 Technology Features Infotainment Infotainment System: N/A (Utility ATV - basic instrumentation only). Driver Assistance Driver Assistance Features: N/A (Utility ATV - focus on mechanical function). Connectivity Connectivity Options: N/A 🔧 Maintenance Service Intervals Engine Oil Change: Every 100 hours or annually, whichever comes first. Air Filter Cleaning: Check every 20 hours or as needed, clean/replace every 40 hours or annually. Spark Plug Replacement: Every 100 hours or annually. Brake Fluid Flush: Every 2 years. Fluid Specifications Engine Oil Type: Yamalube 4 (or equivalent...