Market Segment:
Entry-level sportbike, beginner motorcycle.
Target Audience:
New riders, budget-conscious enthusiasts, commuters, track day participants.
Key Competitors:
Honda CBR250R, Yamaha YZF-R25 (later models), Suzuki GS500F (larger displacement but similar role).
Competitive Advantages:
Reliability, affordability, ease of use, good fuel economy, strong aftermarket support.
Design Philosophy:
Compact, lightweight, sporty styling with accessible performance.
Performance Characteristics:
Nimble handling, forgiving power delivery, excellent for learning and urban riding.
User Friendliness:
Low seat height, manageable weight, user-friendly controls contribute to its beginner-friendly reputation.
Engine Mechanical:
Complete disassembly, inspection, repair, and reassembly of engine components (cylinder head, pistons, crankshaft, camshafts, valves, etc.).
Fuel System:
Fuel injection system (EFI), throttle body, injectors, fuel pump, pressure regulator, fuel tank, fuel lines.
Cooling System:
Radiator, fan, thermostat, coolant lines, water pump.
Ignition System:
Ignition coils, spark plugs, ECU control, timing.
Transmission:
Clutch (wet multi-plate), gearbox internals, shift mechanism, lubrication.
Chassis And Frame:
Frame inspection, alignment, removal and installation of frame components.
Suspension Front:
Telescopic fork service, oil replacement, seal replacement, spring inspection.
Brakes Front:
Hydraulic disc brake system, caliper service, pad replacement, rotor inspection, hydraulic fluid flush.
Wheels And Tires:
Tire inspection and replacement, wheel bearing service, rim specifications.
Electrical System:
Battery, charging system (alternator/stator), starter motor, lighting, horn, ignition switch.
Wiring Diagrams:
Detailed color wiring schematics for all electrical circuits.
Bodywork And Trim:
Fairings, seat, fuel tank, fenders, instrument panel, removal and installation procedures.
Suspension Rear:
Monoshock absorber, linkage system, swingarm, bearing maintenance.
Brakes Rear:
Hydraulic disc brake system, caliper service, pad replacement, rotor inspection, hydraulic fluid flush.
Routine Maintenance:
Oil changes, filter replacements, chain adjustment and lubrication, brake checks, tire pressure, coolant checks.
Troubleshooting:
Diagnostic procedures for common and uncommon issues, symptom-based troubleshooting guides.
Repair Procedures:
Step-by-step instructions for component removal, installation, and overhaul.
Engine Rebuild:
Full engine rebuild instructions, including torque specifications and tolerances.
Carburetor Service:
N/A for this model (fuel injected)
Fuel Injection Diagnosis:
Diagnostic trouble codes (DTCs), sensor testing, injector testing.
Suspension Tuning:
Fork oil weight and level adjustments, shock preload adjustment.
Brake Bleeding:
Procedures for bleeding both front and rear brake systems.
Electrical Troubleshooting:
Circuit testing, component testing, diagnostic flowcharts.
Depth Level:
Comprehensive: Covers everything from basic rider maintenance to full engine and transmission rebuilds, including electrical system diagnostics.
Diagnostic Capabilities:
Detailed diagnostic procedures for EFI system, electrical faults, and mechanical issues.
Specification Detail:
Includes detailed torque specifications, clearances, fluid capacities, resistance values, and other critical technical data.
Digital File Type:
PDF (Portable Document Format)
Searchable Text:
Yes (typically, if professionally scanned and indexed)
Printable:
Yes (designed for printing specific sections or the entire manual)
Image Quality:
High-resolution scans of original diagrams, illustrations, and photographs.
Print Quality Description:
N/A (Digital PDF format, printing quality depends on user's printer).
Binding Type Description:
N/A (Digital PDF format, no physical binding).
Paper Type Description:
N/A (Digital PDF format, no physical paper).
Engine Type:
Liquid-cooled, four-stroke, parallel-twin.
Displacement:
249 cc (249 cubic centimeters).
Bore X Stroke:
55.0 x 52.4 mm.
Compression Ratio:
11.0:1.
Valve Train:
DOHC, 4 valves per cylinder.
Horsepower Approx:
30-34 HP (at crankshaft, depending on region/tuning).
Torque Approx:
17-19 lb-ft (at crankshaft, depending on region/tuning).
Redline Rpm Approx:
10,500 RPM.
Fuel Delivery:
Fuel Injection (DFI) with dual throttle valves.
Fuel Type Required:
Unleaded gasoline, minimum 87 octane (RON+MON)/2.
Fuel Tank Capacity:
18 Liters (4.8 US gal).
Oil Change Interval:
Every 4,000 miles (6,000 km) or 6 months.
Oil Filter Change Interval:
Every 8,000 miles (12,000 km) or 12 months (or with every oil change).
Air Filter Cleaning:
Every 4,000 miles (6,000 km).
Spark Plug Replacement:
Every 7,500 miles (12,000 km).
Chain Lubrication:
Every 500 miles (800 km) or after washing/rain.
Chain Adjustment:
Check every 4,000 miles (6,000 km).
Engine Oil Type:
SAE 10W-40, API SG or higher, JASO MA or MA2.
Engine Oil Capacity:
1.7 L (1.8 US qt) without filter change; 1.9 L (2.0 US qt) with filter change.
Coolant Type:
Permanent type antifreeze (ethylene glycol based) mixed with distilled water, 50/50 ratio.
Fork Oil Type:
SAE 10W (check manual for exact specification as variations may exist).
Common Wear Items:
Clutch plates, brake pads, tires, chain and sprockets.
Potential Issues:
Occasional issues with the starter relay, some owners report vibration at higher RPMs. Early models might have had minor EFI calibration quirks, generally resolved with firmware updates or proper diagnosis.