Honda CRF250R Service Manual (2010–2011): Precision Maintenance & Repair Guide
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Sample pages from the Honda CRF250R Service Manual (2010–2011): Precision Maintenance & Repair Guide manual
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Models Covered & Key Technical Specifications
- CRF250R (2010-2011)
Professional Workshop Service Manual & Technical Specifications
2010–2011 Honda CRF250R — Service Manual (PGM-FI) Reference Set
Built to confirm fit fast, this CRF250R service-manual package is scoped specifically to the 2010 and 2011 model years and organizes content by system blocks (engine, chassis, hydraulics, electrical, and wiring). The value here is the density of spec tables, measurement limits, torque maps, and component-identification callouts—so the manual reads more like a technical dossier than a generic overview.
Model Scope & Year Gate
This edition is keyed to CRF250R (2010–2011) and anchors identification around the bike’s stamped and labeled IDs (VIN at the steering head, engine serial at the crankcase area, plus throttle-body identification marking and name plate placement). Those gates help keep parts-level references aligned to the correct year range and fuel-injection configuration.
What You’ll See First
Sectioning follows an OEM-style architecture: general specifications and reference values up front, then dedicated groups for lubrication, fuel system (PGM-FI), cooling, transmission & balancer, suspension/steering, hydraulic brakes, electrical, and a standalone wiring-diagram section. The early pages concentrate a lot of “fit-critical” constants—capacities, ratios, resistances, pressures, and dimensional baselines—before the deeper assembly chapters begin.
Data-Dense Core: Spec Artifacts & Numeric Anchors
- Bore × stroke and displacement are presented as primary engine identity markers
- Compression ratio and valve-event timing are published as fixed reference points
- PGM-FI tables include throttle-body ID, injector resistance, and fuel-pressure band
- Lubrication pages separate engine vs. transmission oil volumes by scenario (drain/filter/disassembly)
- Electrical references include coil resistances, minimum peak voltages, alternator output rating, and ignition-timing mark
- Torque pages provide both standardized fastener torques and system-specific torque callouts by location
Compact Technical Table (spec-style)
| Reference category | Value |
|---|---|
| Engine displacement | 249.4 cm³ (15.22 cu-in) |
| Bore × stroke | 76.8 × 53.8 mm (3.02 × 2.12 in) |
| Compression ratio | 13.2 : 1 |
| Fuel pressure band (PGM-FI) | 333–360 kPa (48–52 psi) |
| Gearbox layout | Constant mesh, 5-speed |
| Drive reductions | Primary 3.166; Final 3.692 (’10) / 3.769 (After ’10) |
Configuration Boundaries That Matter
A notable split appears around “’10” versus “After ’10” entries in several chassis and gearing references (for example, final reduction and multiple suspension/adjustment reference lines). That structure helps keep year-specific data separated without mixing values across 2010 and 2011 contexts.
PGM-FI + Cooling: The Numbers-First View
Fuel-delivery specifications concentrate on measurable identifiers and baselines: throttle-body ID coding, idle-speed target band, sensor resistance ranges (e.g., ECT), injector resistance band, minimum pump flow reference at 12 V, and a defined pressure window. Cooling pages list coolant capacities (change vs. disassembly) plus radiator-cap relief pressure range and antifreeze chemistry requirements, presented as reference constraints rather than narrative text.
Electrical & Wiring Coverage Signals
Electrical specs include spark plug reference and gap, ignition coil resistance range, minimum peak-voltage references for ignition/CKP, alternator coil resistance band, alternator capacity rating at rpm, and ignition timing at idle by mark reference. A separate wiring-diagram section supports full-circuit tracing across the harness layout and system connectors.
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