2011–2013 Honda CBR250R & CBR250RA Service Manual (P/N 61KYJ02)

• Coverage and document identity: Factory service information for the Honda CBR250R and CBR250RA, Honda item/part 61KYJ02, supplied as a 499-page PDF. The RA material covers the ABS-equipped configuration.
• Engine and drivetrain repair: Covers engine removal and installation, cylinder-head and valve service, piston and cylinder inspection, clutch and gearshift work, flywheel and starter-clutch service, crankcase separation and assembly, crankshaft bearing selection, transmission repair, and balancer timing.
• PGM-FI testing and fault isolation: Provides symptom diagnosis, MIL and DTC procedures, ECM connector checks, sensor power-line inspection, fuel-pressure and fuel-flow testing, and service coverage for the throttle body, injector, IACV, fuel pump, O2 sensor, secondary-air system, and EVAP controls.
• Chassis and hydraulic brake procedures: Details front-fork disassembly and assembly, fork seal and bushing replacement, steering-stem and wheel-bearing service, rear shock linkage and swingarm work, brake-fluid replacement and bleeding, master-cylinder service, and caliper repair.
• CBR250RA-specific ABS coverage: Includes the ABS problem-code index, indicator-circuit troubleshooting, pre-start self-diagnosis, wheel-speed-sensor and air-gap inspection, ABS modulator service, and PCV and delay-valve procedures, plus RA-specific brake bleeding and front-caliper instructions.
• Diagrams and shop data: Contains cable and harness routing drawings, a lubrication-system diagram, PGM-FI system and connector views, a cooling-system flow pattern, an ABS system diagram, ignition and starter schematics, and separate CBR250R/CBR250RA wiring diagrams. Torque tables, capacities, wear limits, clearances, and electrical test specifications accompany the applicable sections.

Factory Repair Scope

This is workshop-level material, not an owner's handbook with a few maintenance pages added. It is best suited to professional technicians and experienced owners who understand motorcycle service practices and have access to the specified measuring equipment, a hydraulic press where called for, and Honda-type special tools. Routine items are still covered in depth, including the maintenance schedule, valve-clearance inspection, idle-speed checks, drive-chain adjustment, brake inspection, coolant service, steering-head bearings, suspension, wheels, tires, and fastener checks.

The engine chapters follow the machine well beyond external service. Cylinder-head coverage includes camshaft and rocker-arm work, valve-guide replacement, valve-seat inspection and refacing, and cam-chain tensioner procedures. The bottom-end material addresses crankshaft and connecting-rod inspection, coded main-journal bearing selection, transmission gear and shift-fork checks, balancer-shaft timing, bearing replacement, and final crankcase assembly. Clutch, primary-drive, alternator, starter-clutch, and gearshift-linkage sections make this useful for a genuine internal repair rather than only engine removal.

Honda identifies the special equipment alongside the work. Examples include the HDS pocket tester TDS3557-0112-01, fuel-pressure gauge 07406-0040004, valve-spring compressor 07757-0010000, fork-seal driver 07747-0010100, and steering-stem socket 07916-3710101. Equivalent or U.S.-specific alternatives are noted where the manual provides them.

Fuel, ABS, and Electrical Diagnosis

The PGM-FI section is built around diagnosis as well as component replacement. It gives the system layout and connector locations before moving into DTC readout and erasure, fail-safe behavior, individual sensor circuits, MIL troubleshooting, and ECM-side inspection. Fuel-line quick-connect work, pressure relief and normalization, pump and relay checks, and injector and throttle-body procedures are kept with the related test information.

For the CBR250RA, the manual does not treat ABS as a short supplement. The dedicated chapter maps the connectors and hydraulic components, explains problem-code readout and erasure, and traces ABS-indicator and wheel-speed-sensor faults. The electrical chapters separately cover battery testing, current leakage, charging voltage, alternator output, regulator/rectifier checks, ignition peak-voltage testing, starter-motor and relay inspection, combination-meter functions, switches, lighting, and fuel-level and vehicle-speed sensors. A final symptom-based troubleshooting section addresses hard starting, loss of power, poor low- or high-speed performance, and handling complaints.

Chassis Work and Repair Cautions

Body-panel and exhaust removal, fuel-tank access, cable routing, wheel service, fork repair, steering-stem bearing replacement, and rear-suspension work are shown with component layouts and assembly views. Standard and ABS brake systems receive distinct fluid-filling, bleeding, and front-caliper procedures, which matters when choosing the correct repair path for an R or RA model.

The crankcase assembly pages warn against forcing the case halves together because misalignment can damage the oil-seal lips. Main-journal bearing inserts must remain in their original locations or be selected by the factory code system; mixing them can produce incorrect oil clearance and engine damage. For engine, wheel, suspension, fuel, or hydraulic-brake work, support the motorcycle securely and follow the manual's fuel-pressure and brake-fluid precautions before disassembly.