Honda CR125R 1984-1985 Workshop Manual

• Covers 1984–1985 Honda CR125R motocross competition motorcycles, detailing engine, chassis, and cooling system specifications
• Original OEM publication, form number 61CS400 Ride Red shop manual
• Contains 47 technical diagrams, 48 torque value specifications, and detailed fuel system calibration tables
• Comprehensive 247-page reference providing the baseline settings for the 125 cc 2-stroke power plant and chassis setup used for the 1984–1985 race seasons

Technical Specifications and Data

This official workshop reference provides essential service data for the 2-stroke power unit. It includes transmission oil capacities, spark plug recommendations, and carburetor tuning profiles adapted for various environmental conditions. Critical fasteners are thoroughly documented, specifying cylinder head nut torque at 25–29 Nm (18–21 ft-lbs) and flywheel nut torque at 50–60 Nm. The coolant capacity for the 1984 model is officially recorded at 1.100 liters. Always observe standard shop safety protocols and use properly calibrated torque wrenches when verifying these critical specifications to prevent component damage.

Component Maintenance and Calibration

The documentation thoroughly outlines the ATAC (Automatic Torque Amplification Chamber) system, explaining parameters for governor disassembly and rack adjustment. Engine removal and installation chapters clearly define the necessary support points for handling the crankcase and suspension pivots safely. For track-side tuning, the publication lists precise jetting recommendations based on altitude and temperature correction factors. This enables mechanics to achieve optimal adjustment of the piston-valve carburetor. Understanding these factory baselines ensures the motorcycle performs exactly as engineered for competition.