2007-2009 Honda CRF150R / CRF150RB Service Manual

• Covers 2007–2009 Honda CRF150R and CRF150RB motocross motorcycles, including standard and big-wheel chassis configurations
• Official OEM publication P/N 61CS400, documenting factory maintenance, repair, and assembly specifications
• Contains 46 detailed torque-value tables, 14 specialized electrical system reference charts, and 23 exploded-view system assembly illustrations
• Comprehensive 328-page factory publication providing the exact service data and system schematics required for engine and chassis maintenance cycles

Procedural and Diagnostic Content

The documentation details the internal workings of the liquid-cooled Unicam engine and Pro-Link suspension architecture. Chapters are organized logically by system. They move from general vehicle information and fuel system calibration directly to bottom-end assembly and transmission rebuilding. Each section provides detailed system-level illustrations to identify internal components rapidly. Properly referencing these specifications prior to any repair ensures workshop safety and maintains the structural integrity of the motorcycle. Furthermore, the text outlines carburetor jetting strategies for varying altitudes and temperatures, highlighting needle clip positions along with pilot screw adjustments.

Technical Data Preview

Precise engine and chassis specifications are documented to help maintain peak performance for both models. Inside the cylinder head specification table, intake valve clearance is listed at 0.16 ± 0.03 mm. Technicians will find critical engine assembly data, such as the 31 Nm torque requirement for the cylinder head nut. Cooling system capacity is noted at exactly 0.76 liters. Electrical reference values cover the ignition pulse generator, exciter coil, and throttle position sensor. For convenience on the bench, torque tables list both Nm and ft-lbs across all major fasteners. This includes heavy-duty components like the 88 Nm rear axle nut and the 64 Nm flywheel nut.