Target User:
DIY enthusiasts, home mechanics, and professional technicians servicing the Honda TRX250EX/X.
Competitive Advantage:
Comprehensive coverage across a wide range of model years and includes all aspects of repair and maintenance, providing a singular resource.
Feature 1:
Extensive model year coverage (2006-2017, with specific exclusions).
Feature 2:
High detail with pictures, diagrams, and torque specs.
Feature 3:
User-friendly digital format with search and navigation capabilities.
Feature 4:
Vendor support with free manual replacement.
Years Covered:
2006, 2007, 2008, 2009, 2011, 2012, 2013, 2014, 2016, 2017
Model Variants Covered:
TRX250EX, TRX250X (Note: Model name change occurred in 2009; production skipped 2010 and 2015)
Type:
Comprehensive Repair Manual
Engine:
Complete engine tear down, rebuild, inspection, diagnosis, performance tuning, lubrication systems, valve train, timing, cooling system
Fuel System:
Carburetor service and adjustment (including pilot jet, main jet, mixture screw), fuel pump, fuel lines, fuel tank
Transmission:
Clutch operation, adjustment, replacement; gearshift mechanism, internal transmission components, primary reduction gear
Drivetrain:
Rear axle, swingarm, suspension linkage, wheel bearings
Brakes:
Front and rear brake system service, including calipers, master cylinders, brake lines, brake pads, brake rotors, brake fluid specifications
Electrical System:
Ignition system, starting system (kickstart and electric start components if applicable), charging system (magneto, stator, rectifier), lighting, battery service
Suspension Steering:
Front forks (including oil change, seal replacement), rear suspension, steering linkage, handlebars
Bodywork Chassis:
Frame inspection, plastic panels, fenders, seat, plastics, instrumentation
Maintenance:
Scheduled maintenance, fluid changes (engine oil, coolant, brake fluid), filter replacements, lubrication, valve clearance checks and adjustments, spark plug replacement, tire pressure checks
Troubleshooting:
Step-by-step troubleshooting guides for common problems, electrical diagnostics, starting issues, performance problems, error code interpretation (if applicable)
Repair Rebuild:
Detailed instructions for complete tear down and rebuild of all major components, including engine, transmission, suspension, brakes, and electrical systems
Installation Adjustment:
Instructions for installing new parts, adjusting cables, carburetor settings, suspension settings, and other operational adjustments
Depth Of Coverage:
Comprehensive, covering everything from basic maintenance to full engine and component overhauls.
Diagnostic Capabilities:
Detailed diagnostic procedures, wiring diagrams (implied by 'schematic' and electrical coverage), and troubleshooting trees.
Resource Types:
Includes photographs, part diagrams, torque specifications, fluid recommendations, and schematics.
Engine Type:
Single-cylinder, liquid-cooled, four-stroke OHC
Displacement:
229cc (approximate)
Bore X Stroke:
64.0 mm x 68.2 mm (typical specification for this engine family)
Compression Ratio:
9.5:1 (typical specification)
Horsepower:
Approx. 18-20 HP (specifications may vary slightly by year and tune)
Torque:
Refer to specific torque specs within the manual for engine components.
Fuel Delivery:
Carburetor (e.g., Keihin CV type)
Fuel Type:
Unleaded gasoline (87 octane minimum recommended)
Oil Type:
API Service SE, SF, or SG or higher; SAE 10W-40 or 10W-30 recommended for general use. Consult manual for specific viscosity ranges based on temperature.
Oil Capacity:
Approx. 1.7 Liters (dry fill) / 1.5 Liters (with filter change). Verify in manual.
Coolant Type:
Honda 4-stroke Engine Coolant (or equivalent ethylene glycol-based coolant with anti-corrosion additives). Mix 50/50 with distilled water.
Transmission Type:
5-speed automatic clutch with reverse
Clutch Type:
Wet, multi-plate, automatic clutch
Gear Selection:
Foot-operated gear shift lever
Transmission Oil Type:
API Service SF or SG SAE 10W-40. Verify in manual.
Transmission Oil Capacity:
Approx. 0.75 Liters. Verify in manual.
Engine Oil Change:
Every 1,000 km (600 miles) or 6 months, whichever comes first. Refer to manual for severe use intervals.
Air Filter Cleaning:
Inspect every 20 hours of operation, clean as needed. Replace if damaged.
Valve Clearance Check:
Every 4,000 km (2,500 miles) or 2 years. Adjust as necessary.
Brake Fluid Change:
Every 2 years or as recommended by inspection. Consult manual for specific intervals and procedures.
Engine Oil Spec:
SAE 10W-40, API SE/SF/SG or higher.
Coolant Spec:
Honda 4-stroke Engine Coolant or equivalent (50/50 mix with distilled water).
Brake Fluid Spec:
DOT 3 or DOT 4. Verify in manual.
Common Wear Items:
Brake pads and rotors, clutch plates (due to automatic clutch operation), tires, wheel bearings, suspension bushings.
Carburetor Tuning:
Can sometimes require fine-tuning for optimal performance in varying conditions or after extensive use. Manual provides detailed adjustment procedures.
Starting System:
While not a widespread issue, kickstart mechanisms can require maintenance over time. The manual details disassembly and lubrication.
Manufacturer:
Honda Motor Company, Ltd. Known for reliability, engineering excellence, and innovation across its product lines.
Lineage:
The TRX250EX and TRX250X are part of Honda's successful line of Sportrax ATVs, evolving from earlier models with a focus on user-friendly performance and reliability.
Name Change:
The model was initially known as the TRX250EX and was rebranded as the TRX250X starting with the 2009 model year, reflecting a minor update or marketing shift rather than a fundamental redesign.
Production Gap:
Notable production gaps in 2010 and 2015, suggesting market adjustments or planning cycles for the model.