Positioning:
The Honda TRX250R was a highly sought-after sport ATV, known for its performance and agility. This manual targets owners and enthusiasts looking for professional-grade repair and maintenance information.
Competition:
Competed against models like the Yamaha Warrior and Suzuki LT-Z250 during its production run.
Unique Selling Points:
Model-specific for the 1986-1989 TRX250R, providing detailed information not found in generic manuals. Instant download eliminates shipping delays.
Engine Systems:
Top-end, Bottom-end, Carburetion, Ignition, Cooling, Lubrication, Exhaust
Drivetrain Systems:
Clutch, Transmission, Final Drive, Chain Drive
Chassis Systems:
Suspension (Front & Rear), Steering, Brakes (Front & Rear), Frame, Bodywork
Electrical Systems:
Wiring Diagrams, Lighting, Ignition System, Charging System, Battery
Maintenance Procedures:
Scheduled Maintenance, Oil Changes, Filter Replacements, Chain Adjustments, Spark Plug Service
Repair Procedures:
Engine Overhaul, Transmission Rebuild, Suspension Component Replacement, Brake Caliper Service, Carburetor Rebuild, Electrical Component Diagnosis and Repair
Troubleshooting Procedures:
Diagnostic Flowcharts, Common Problems and Solutions, Symptom-based Troubleshooting
Depth:
Comprehensive; covers from basic maintenance to complete engine and transmission rebuilds, including detailed diagnostic procedures.
Type:
2-stroke, Single Cylinder
Displacement:
246 cc (15.0 cu in)
Bore X Stroke:
68.0 mm x 68.0 mm (2.68 in x 2.68 in)
Horsepower:
Approximately 23-25 hp (factory spec, may vary)
Torque:
N/A (Specific torque figures often not officially published for ATVs of this era, but generally robust for its class)
Carburetor:
Keihin PWK33 (typically)
Fuel Type:
Unleaded gasoline, 91 octane (or higher) recommended.
System:
CDI (Capacitor Discharge Ignition)
Type:
6-speed manual with reverse
Clutch:
Wet, multi-plate, manual clutch
Final Drive:
O-ring sealed chain drive
Transmission Oil Type:
Honda 4-stroke All Season Motorcycle Oil (e.g., HP4) or equivalent API SG, SAE 10W-30
Transmission Oil Capacity:
Approximately 0.85 L (0.9 US qt)
Length:
Approximately 1780 mm (70.1 in)
Width:
Approximately 765 mm (30.1 in)
Height:
Approximately 1005 mm (39.6 in)
Wheelbase:
Approximately 1205 mm (47.4 in)
Dry Weight:
Approximately 170 kg (375 lbs)
Curb Weight:
Approximately 182 kg (401 lbs)
Rack Capacity Front:
N/A (Designed for sport, not cargo)
Rack Capacity Rear:
N/A (Designed for sport, not cargo)
Safety Features:
Standard ATV safety features of the era, including throttle limiter and neutral safety start.
Brakes:
Hydraulic disc brakes, front and rear.
Handlebar Design:
Standard motocross-style handlebars with handguards (optional/aftermarket often).
Engine Oil Change:
Every 1000 km (600 miles) or 6 months, whichever comes first.
Air Filter Cleaning:
Every 500 km (300 miles) or after riding in wet/dusty conditions.
Spark Plug Replacement:
Every 2000 km (1200 miles) or annually.
Chain Lubrication Adjustment:
Every 300 km (200 miles) or as needed.
Coolant Type:
Honda Motorcycle Coolant or a permanent type antifreeze containing ethylene glycol, mixed with distilled water in a 50:50 ratio.
Coolant Capacity:
Approximately 1.3 L (1.4 US qt)
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic brake fluid.
Common Wear Items:
Clutch plates, piston rings, suspension bushings, wheel bearings.
Carburetor Issues:
Clogging due to fuel varnish, especially if not stored properly. Jetting adjustments may be needed for modifications.
Ignition System:
Stator failure or CDI unit issues can cause no-spark conditions.
Cooling System:
Radiator leaks, water pump seal failure, or coolant hose deterioration.
