This manual covers the Honda TRX 90 series, including the TRX90, TRX90ex, and TRX90x models, for the production years 2006 through 2013, excluding the 2010 and 2011 model years. Known for its user-friendly operation and renowned reliability, the TRX 90 is an entry-level sport ATV designed for recreational trail riding and family fun. Its key features include a dependable four-stroke engine, typically around 86-100cc, an automatic transmission with F-N-R, electric start, and a durable chassis built for ease of operation and manageable power delivery. The TRX 90 series competes effectively in its class by offering hallmark build quality and long-term durability, making it a popular choice for younger riders and those new to off-roading. This comprehensive English-language service manual provides detailed guidance for maintaining and repairing your Honda TRX 90. It covers all essential systems, including engine overhaul, drivetrain components, chassis elements, and electrical systems. Within its 298 pages, you will find step-by-step procedures for scheduled maintenance, fluid changes, component replacements, and in-depth troubleshooting for common issues. The manual includes repair procedures for everything from minor adjustments to complete engine and transmission rebuilds, along with critical technical specifications, torque values, and diagnostic information. This resource is invaluable for owners, mechanics, and technicians seeking to ensure the optimal performance, longevity, and safety of their TRX 90 ATV. 🏷️ Basic Information Identification Make: Honda Model: TRX 90 Product Name: Honda TRX 90 Service Manual Repair 2006-2013 TRX 90ex TRX 90x TRX90 Codes Model Code Variants: TRX90, TRX90ex, TRX90x Generation Production Years Covered: 2006-2013 (excluding 2010-2011) 👋 Introduction Market Position Market Position: The Honda TRX 90 series (TRX90, TRX90ex, TRX90x) represents Honda's entry-level sport ATV offering, typically targeted at younger riders or those seeking a recreational, user-friendly off-road experience. It's known for its reliability and ease of operation, making it a popular choice for family trail riding. Competitive Analysis Competitive Analysis: Competes with similar entry-level ATVs from manufacturers like Yamaha (e.g., Raptor 90), Suzuki (e.g., LT-Z90), and Polaris (e.g., Outlaw 90). Its key differentiators often include Honda's reputation for build quality and durability. Key Features Key Features: User-friendly operation, reliable Honda engine, automatic transmission (often), electric start, durable chassis, manageable power delivery for its class. 📋 Manual Details Coverage Areas Covered Models: 2006 Honda TRX90, 2007-2008 Honda TRX90ex, 2009 Honda TRX90x, 2012-2013 Honda TRX90x Page Count Page Count: 298 Manual Type Manual Type: Service Manual / Repair Manual Language Language: English Format Format: Digital (PDF) 📖 Manual Coverage Systems Covered Engine Systems: Engine overhaul, disassembly, reassembly, carburetor (carb, carburettor, carboretor), fuel system, ignition system, lubrication system, charging system, starting system, cooling system (if applicable, though typically air-cooled for this model), exhaust system, PGM-FI (for applicable models if any, though likely carbureted) Drivetrain Systems: Drive train, primary reduction gear, transmission, clutch, swingarm (swinger), axles, wheels, tires Chassis Systems: Frame, suspension (front struts, rear suspension), brakes (front, rear, pads), steering, handlebars, bodywork (plastics, panels, fenders), seat Electrical Systems: Electrical system, battery, starter, lights (head, tail), switches, stator, flywheel magneto, rectifier, coil Procedures Included Maintenance Procedures: Scheduled maintenance, fluid changes (engine oil, gear oil), lubrication, filter replacement, battery maintenance, tire pressure checks, brake adjustments, valve clearance adjustment, spark plug service, air filter cleaning/replacement, fuel filter cleaning/replacement, throttle cable adjustment, gearshift adjustment Repair Procedures: Complete tear down and rebuild, engine internal component replacement (piston, connecting rod, crankshaft, cams, cylinder, jug), carburetor overhaul and tuning (mixture screw, pilot jet, slow jet, main jet), transmission repair, brake caliper service, suspension component replacement, electrical component testing and replacement, body panel repair/replacement, starter motor repair, flywheel removal/installation Troubleshooting Procedures: Diagnostic procedures for common problems (no spark, starting issues, idle problems, poor performance), error code identification (if applicable to the model), troubleshooting electrical circuits, troubleshooting fuel delivery issues, troubleshooting engine performance problems Installation Procedures: Installation of accessories, component replacement procedures Technical Depth Technical Depth: Comprehensive. Covers everything from basic maintenance and routine checks to complete engine and transmission rebuilds. Includes detailed diagrams, torque specifications, and diagnostic procedures. 📊 Manual Specifications File Format File Format: PDF Print Quality Print Quality: Printable and savable without restrictions. Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) Searchability Searchability: Searchable text within the PDF document. Navigation Navigation: Clickable chapters for easy navigation. ⚙️ Engine Specifications Primary Engine Engine Type: Four-stroke, Air-cooled (typically) Displacement: Approximately 86 cc to 100 cc (specific displacement may vary slightly by exact model year and variant, but generally falls within this range for the 90cc class). Bore X Stroke: Varies, typically around 50.0 mm x 45.1 mm (refer to specific model year for exact figures). Compression Ratio: Typically around 9.5:1 to 10.0:1 (refer to specific model year for exact figures). Valvetrain: SOHC, 2 valves per cylinder (camshaft, valves) Performance Horsepower: Not explicitly stated in product info, but typically in the range of 6-8 HP for this class....