Honda NSR125 1989–2000 Service Manual OEM

• Covers 1989–2000 Honda NSR125 F and NSR125 R models (124.8 cc liquid-cooled 2-stroke engine)
• Original OEM publication packed with professional-grade reference data for engine, chassis, fuel, and electrical systems
• Features 47 exploded-view diagrams and 18 specialized service and torque-value tables

Engine and Chassis Specifications

This 222-page primary factory reference breaks down the technical specifics for internal combustion systems, cooling components, and drivetrain assemblies. Because this is an instant download, you get immediate access to detailed component descriptions, including fuel tank removal parameters, air cleaner housing schematics, and the precise carburetor setup using the PHBH28FS throttle valve assembly. The chapters deliver exact factory specifications for cylinder head warpage limits, piston-to-bore clearances, and RC valve control cable alignment. You will also find essential cooling system data, noting the thermostat opening temperatures (69.5°C to 72.5°C) and required radiator cap pressure settings.

Specification and Torque Reference Data

Accurate fastening is critical. This manual lists standardized torque values covering everything from 5 mm screws to 12 mm bolts, prominently featuring the cylinder head nut torque (23 Nm) and the fuel system's valve lock nut torque (10 Nm). For electrical diagnostics, routing guides and reference values support the ignition timing protocols for the Capacitive Discharge Ignition (CDI) system. Working on high-performance motorcycles involves inherent mechanical risks, making it essential to review these precise OEM specifications and secure your workspace before starting any tear-down. Ultimately, the manual details what an OEM service publication covers regarding engine rebuild specs, transmission tolerances, and frame geometry for both the F and R variants.