2009-2012 Honda CRF450R Service Manual (P/N 61-010-MFL-000)

• Official OEM Honda publication (P/N 61-010-MFL-000)
• A complete 472-page technical reference detailing the PGM-FI engine platform and chassis components for the 2009–2012 production cycle
• Comprehensive maintenance and component-level service coverage for the engine, chassis, and electrical systems
• Includes 56 pages of maintenance tables, 48 pages of torque specs, and 23 detailed wiring schematics

Component and System Documentation

This OEM manual breaks down the PGM-FI fuel delivery system, cooling architecture, and mechanical drivetrain. Spanning 19 sections, the documentation covers everything from basic frame-panel removal to a complete engine teardown. That includes crankshaft assembly and transmission maintenance. You get clear, exploded-view illustrations of the intake, exhaust, and suspension linkages. These diagrams guarantee accurate component identification and proper installation alignment, matching standard factory workshop documentation.

Specifications and Clearances

The reference section outlines critical clearance, torque, and fluid capacity values for quick bench work. Key specs include a 0.59-liter transmission oil capacity when draining, a 0.58-liter engine oil capacity, and a 1.04-liter coolant capacity. Engine reference values detail the 449.7 cc displacement and 12.0:1 compression ratio. You will also find precise benchmarks like the 51 N·m cylinder head bolt torque and 0.8–0.9 mm spark plug gap. Reviewing these figures gives you a solid head start, but always verify values against the actual OEM publication and exercise professional mechanical judgment before turning a wrench.