2004-2012 Honda CRF250X Service Manual (P/N 11340-KRN-A00)

• Covers 2004–2012 Honda CRF250X off-road motorcycles, including 49-state, California, and Canada regional variants
• Original OEM publication 11340-KRN-A00, documenting the complete 2004–2012 service cycle
• Features 56 exploded-view diagrams and 39 detailed torque-specification tables for rapid parts identification on the bench
• Extensive 418-page technical manual utilized for factory-level maintenance, internal engine assembly, and chassis tuning

Documentation Structure

Navigating this OEM publication reveals a logical workflow tailored for the workshop. It breaks down the 249.4 cc engine and associated chassis components into distinct, actionable chapters. You get clear guidelines on general shop practices, model identification, and strict lubrication requirements right up front. From there, the material dives deep. Expect thorough coverage of the fuel system, cooling loops, and electrical networks—including detailed pinouts for the Ignition Control Module and starter system. Suspension, braking, and steering maintenance are mapped out for optimal chassis setup. Dealing with a stubborn misfire or a bogging issue? The final chapters deliver structured troubleshooting pathways to help you isolate mechanical faults quickly and get the bike back in the dirt.

Technical Specification Highlights

Precision matters when tearing down a high-revving engine. The reference section outlines crucial internal specifications to keep tolerances tight during assembly. For instance, intake valve clearance sits at 0.12 ± 0.03 mm. Exhaust valves require 0.28 ± 0.03 mm. Fluid capacities are straightforward: 0.66 liters for the engine oil and 0.67 liters for the transmission at draining. Doing a top-end rebuild? The text provides exact piston-to-cylinder and rod-to-pin clearance charts. Standard torque values run from a delicate 4.9 Nm for case bolts all the way up to 127 Nm for the rear axle nut. The specifications discussed here offer a brief overview of the manual contents. Always rely on the complete original OEM documentation and professional judgment before applying a wrench to critical components.