🏷️ Basic Information Identification Make: Honda Model: TRX400FA/FGA Fourtrax Rancher 400 AT Model Variant 1: TRX400FA Fourtrax Rancher 400 AT Model Variant 2: TRX400FGA Fourtrax Rancher 400 AT GPScape Codes Chassis Code Fa: TRX400FA Chassis Code Fga: TRX400FGA 👋 Introduction Market Position Category: Powersports, All-Terrain Vehicle (ATV) Target User: ATV owners, mechanics, technicians, restoration enthusiasts Competitive Analysis Competitors: Yamaha Kodiak, Polaris Sportsman, Suzuki KingQuad Key Features Atv Features: Automatic transmission, selectable 2WD/4WD, independent front suspension, torque-sensing front differential, GPScape navigation (on FGA models) Manual Value Proposition Benefit: Enables owners to perform all necessary maintenance, repairs, and diagnostics, saving time and money. 📋 Manual Details Coverage Areas Years Covered: 2004, 2005, 2006, 2007 Models Covered: TRX400FA, TRX400FGA Trim Levels Covered: AT (Automatic Transmission), AT GPScape (with GPS Navigation System) Manual Type Type: Workshop Service and Repair Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Engine: Complete overhaul, diagnosis, troubleshooting, maintenance Transmission: Automatic transmission (AT) operation, maintenance, repair Fuel System: Carburetor tuning, fuel pump, fuel lines, fuel tank maintenance Cooling System: Radiator, fan, coolant, water pump service Lubrication System: Oil pump, oil filter, oil passages, oil change procedures Electrical System: Battery, charging system, ignition system, starter motor, lighting, meters, switches Frame And Body: Frame inspection, body panel removal/installation, exhaust system service Suspension And Steering: Front and rear suspension components, shock absorbers, steering mechanism, wheel alignment Brakes: Hydraulic brake system, front and rear brake components, bleeding procedures Gp Scape System: GPScape unit (if equipped) installation, operation, and troubleshooting Procedures Included Major Repairs: Engine rebuilds, transmission overhauls, suspension overhauls Maintenance: Scheduled maintenance, fluid changes, filter replacements, general upkeep Troubleshooting: Diagnostic procedures for common and uncommon issues, fault finding charts Diagnostics: Step-by-step diagnostic routines for all major systems Adjustments: Carburetor adjustments, valve clearance adjustments, brake adjustments Installation: Component installation and removal procedures Technical Depth Depth: Comprehensive (from basic maintenance to complete engine/transmission rebuilds) Detail Level: Detailed illustrations, diagrams, wiring schematics, torque specifications, clearances 📊 Manual Specifications File Format Format: PDF Print Quality Quality: High-resolution, clear text and images for easy reading and printing Binding Type Type: Digital (PDF) - No physical binding Paper Type Type: Not Applicable (Digital Format) ⚙️ Engine Specifications Primary Engine Type: 4-stroke, OHV, air-cooled V-twin Displacement: 397 cc Bore X Stroke: 67.0 mm x 55.5 mm Compression Ratio: 8.8:1 Ignition: CDI Valve Clearance Intake: 0.10 - 0.15 mm (cold) Valve Clearance Exhaust: 0.15 - 0.20 mm (cold) Performance Horsepower: Approx. 20-22 HP (estimated, varies by source and exact model year) Torque: Not explicitly stated in product info, but indicative of a utility ATV engine Fuel System Carburetor Type: Keihin CV-type (likely dual carburetors) Fuel Capacity: 3.0 US gal / 11.4 L Fuel Type: Unleaded gasoline, 86 octane or higher 🔧 Transmission Standard Type: Automatic Transmission (AT) with torque converter Drive Modes: 2WD/4WD selectable, Torque-sensing front differential Gear Selection: F (Forward), N (Neutral), R (Reverse) Features Final Drive: Sealed O-ring chain (rear), front driveshaft (front) Transmission Fluid: Honda ATV Specific Oil (check manual for exact specification and capacity) 📐 Dimensions Exterior Overall Length: Approx. 80.8 inches (2053 mm) Overall Width: Approx. 47.1 inches (1196 mm) Overall Height: Approx. 45.7 inches (1161 mm) Wheelbase: Approx. 50.0 inches (1270 mm) Weights Dry Weight: Approx. 570 lbs (258.5 kg) Curb Weight: Not specified, but typically higher than dry weight Towing Capacity: Not specified, but generally rated for light towing applications Dimensions Ground Clearance: Approx. 8.2 inches (208 mm) 🛡️ Safety Features Ratings Safety Certification: Not applicable for ATVs in terms of NHTSA or Euro NCAP ratings Active Features Braking: Hydraulic disc brakes (front and rear), engine braking Handling: Independent front suspension, stable chassis design Passive Features Operator Protection: Handlebar grips, footpegs, seating position designed for stability 💡 Technology Features Infotainment Gp Scape System: Integrated GPS navigation system (on TRX400FGA models) for tracking routes and locations. Driver Assistance Traction Control: No electronic traction control; relies on mechanical 4WD system and torque-sensing front differential. Connectivity Connectivity Features: None; purely mechanical and electrical systems. 🔧 Maintenance Service Intervals Oil Change Interval: Every 600 miles (1000 km) or 6 months (refer to manual for exact schedule) Air Filter Cleaning: Every 300 miles (500 km) or 3 months (more frequently in dusty conditions) Spark Plug Replacement: Every 2,000 miles (3200 km) or 24 months Valve Clearance Check: Every 2,000 miles (3200 km) or 24 months Fluid Specifications Engine Oil Type: SAE 10W-40 API SG or higher (check manual for specific Honda recommendation) Engine Oil Capacity: Approx. 1.8 US qt (1.7 L) without filter change, 1.9 US qt (1.8 L) with filter change Coolant Type: Honda Antifreeze/Coolant (Type 1) or equivalent (50/50 mix with distilled water) Brake Fluid Type: DOT 3 brake fluid Known Issues Common Wear Items: Brake pads, tires, suspension bushings, drive chain/sprockets Potential Problems: Carburetor gumming if not used regularly, occasional starter motor issues,...