Production Years Covered:
1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
Manual Identifier:
Likely based on Yamaha's internal service manual numbering system, specific code not provided.
Segment:
Dual-sport / Enduro motorcycle, popular for its versatility in on-road and off-road applications, appealing to recreational riders and commuters.
Competitors:
Honda CRF250L, Kawasaki KLR250, Suzuki DR200SE, KTM 200 EXC.
Agility:
Known for its lightweight and nimble handling, making it easy to maneuver in various terrains.
Reliability:
Yamaha's reputation for robust engineering contributes to the XT225's dependable performance over a long service life.
Versatility:
Capable of handling both paved roads and unpaved trails, offering a broad range of usability.
Value Proposition:
Empowers owners and mechanics with the knowledge to perform routine maintenance, diagnose issues, and carry out repairs, extending the motorcycle's lifespan and preserving its performance.
Engine Mechanical:
Engine disassembly, inspection, assembly, valve clearance adjustment, piston/cylinder inspection, crankshaft and connecting rod checks, timing chain inspection, lubrication system.
Fuel System:
Carburetor assembly, disassembly, cleaning, adjustment (idle speed, mixture), fuel tank, fuel filter, fuel pump (if applicable).
Ignition System:
CDI unit, ignition coils, spark plug specifications, timing procedures, troubleshooting ignition faults.
Exhaust System:
Muffler and exhaust pipe inspection, gasket replacement, mounting hardware.
Transmission Drivetrain:
Gearbox disassembly and assembly, clutch operation, gear shift mechanism, final drive (chain and sprockets) inspection and adjustment.
Suspension:
Front fork (telescopic) disassembly, inspection, seal replacement, oil level and type, rear shock absorber adjustment and inspection, linkage maintenance.
Brakes:
Front and rear brake systems (likely drum or disc depending on specific XT225 variant), brake pad/shoe replacement, caliper/drum inspection, hydraulic system bleeding, brake fluid specifications.
Wheels Tires:
Wheel bearing inspection, spoke tensioning, tire pressure specifications, wheel removal and installation, rim strip inspection.
Electrical System:
Battery maintenance, charging system (stator, rectifier/regulator), lighting circuits (headlight, taillight, signals), starter motor operation, wiring diagrams, fuse replacement, troubleshooting electrical issues.
Frame Bodywork:
Frame inspection for damage, body panel removal and installation, seat, fuel tank mounting, handlebar replacement, controls (levers, cables).
Routine Maintenance:
Oil change intervals and specifications, oil filter replacement, air filter cleaning/replacement, chain lubrication and adjustment, spark plug replacement, general inspection points.
Troubleshooting:
Diagnostic procedures for common performance issues, starting problems, electrical faults, braking issues, and suspension concerns.
Repair Procedures:
Step-by-step instructions for disassembling, inspecting, repairing, and reassembling major components and systems.
Adjustment Procedures:
Detailed instructions for adjusting carburetor mixture, idle speed, valve clearances, clutch, brakes, and suspension.
Specifications Data:
Torque specifications for critical fasteners, fluid capacities, electrical system specifications (voltage, resistance), dimensional data for wear components.
Depth:
Comprehensive, covering everything from basic owner maintenance to complete engine rebuilds and advanced electrical system troubleshooting.
Engine Type:
Four-stroke, SOHC, air-cooled single-cylinder
Displacement:
223cc (for most variants)
Bore X Stroke:
Typically around 67.0 mm x 64.8 mm (check specific model year).
Compression Ratio:
Around 9.5:1 to 10.0:1 (check specific model year).
Horsepower:
Estimated 16-20 hp at peak RPM (varies by emissions regulations and specific tuning).
Torque:
Estimated 13-16 Nm at peak RPM (varies).
Carburetor Type:
Mikuni VM series (e.g., VM26 or similar constant-velocity carburetor).
Fuel Type:
Unleaded gasoline, Octane rating typically 87 AKI or higher.
Oil Capacity With Filter:
Approximately 1.5 - 1.7 liters (check specific manual for exact capacity and oil type).
Recommended Oil Viscosity:
Yamalube 10W-40 or equivalent API SG or higher motorcycle oil.
Overall Length:
Varies slightly by year and specific trim, typically around 2100-2150 mm.
Overall Width:
Varies, typically around 800-850 mm.
Overall Height:
Varies, typically around 1150-1200 mm.
Wheelbase:
Approximately 1350-1360 mm.
Dry Weight:
Around 118-122 kg (varies by specific model and included equipment).
Curb Weight:
Around 128-133 kg (includes all necessary fluids and a full tank of fuel).
Fuel Tank Capacity:
Approximately 11 liters (including reserve).
Crash Test Data:
Motorcycles are not typically subjected to automotive-style crash testing. Safety emphasis is on rider protection and vehicle stability.
Braking System:
Front: Disc brake; Rear: Drum brake (early models) or Disc brake (later models). Specific model variant required for confirmation.
Lighting:
Headlight, taillight, brake light, turn signals for road legality and visibility.
Frame Design:
Steel diamond frame designed for balance and rider control.
Ergonomics:
Upright riding posture for comfort and control during varied riding conditions.
Oil Change:
Every 3,000 km (approx. 1,860 miles) or 6 months, whichever comes first.
Air Filter Cleaning:
Every 3,000 km (approx. 1,860 miles), replacement as needed.
Spark Plug Replacement:
Every 6,000 km (approx. 3,720 miles).
Valve Clearance Check:
Every 6,000 km (approx. 3,720 miles).
Engine Oil:
Yamalube 4-stroke motorcycle oil SAE 10W-40, API SG or higher.
Fork Oil:
Yamaha Suspendric No. 10 (or equivalent SAE 5W/10W fork oil) - Capacity approx. 500-550 ml per fork leg (check manual for precise amount and type).
Brake Fluid:
DOT 3 or DOT 4 hydraulic brake fluid (if equipped with disc brakes).
Carburetor Cleaning:
Occasional cleaning may be required due to fuel deposits, especially if the motorcycle sits for extended periods.
Clutch Cable Adjustment:
Clutch lever free play needs regular adjustment to ensure proper engagement and disengagement.
Suspension Seals:
Fork seal leaks can occur over time, requiring replacement to prevent oil loss and maintain damping performance.
Electrical Connections:
Corrosion or looseness in electrical connectors can lead to intermittent issues with lights or ignition.
Heritage:
Yamaha's long history in motorcycle manufacturing, particularly in off-road and dual-sport segments, dating back to the 1950s.
Lineage:
The XT225 is part of Yamaha's esteemed XT lineage, known for its reliability and go-anywhere capability, evolving from earlier models like the XT500 and XT350.
Manufacturing Location:
Primarily manufactured in Japan.
Significant Changes During Era:
Minor updates often included cosmetic changes, emissions control improvements, and sometimes upgrades to braking systems (e.g., transition from rear drum to rear disc in some markets).