Honda CB250, CL250, CB350, CL350, SL350 Shop Manual

Honda CB250/350/CL250/CL350 Shop Manual

• Covers 1972 Honda CB250, CL250, CB350, CL350, and SL350 motorcycles, including K4 and K2 performance variants
• Official OEM publication Copyright 1972 Honda Motor Co., Ltd.
• Contains 136 pages of technical specifications, 6 model-specific wiring diagrams, and detailed exploded-view assemblies
• Stored against your account so you can retrieve it after a hard-drive loss
• Indexed PDF search covers every chapter and appendix
• Full-text search finds any part number in seconds
• Laid out for standard letter and A4 printing
• This 1972 shop manual remains the authoritative source for the O.H.C. twin-cylinder engine architecture utilized across the 250cc and 350cc model range

Internal Mechanics and Chassis Documentation

This Honda motorcycle publication documents inspection, disassembly, and assembly procedures for the entire engine, frame, and electrical systems. Detailed chapters walk through the valve mechanism, pistons, cylinders, cam chain tensioner, and lubrication system including the centrifugal oil filter. Separate sections cover power transmission, the constant-mesh 5-speed gearbox, gear shift mechanism, and kick-starter assembly. Engine specifications are provided for all variants, detailing bore, stroke, compression ratios, and torque values for key fasteners like cylinder head bolts.

Technical Preview and Performance Specifications

The frame section documents the semi-double cradle architecture, front fork telescopic suspension, and rear fork construction. Technical data tables provide reference values for main bearing diametrical clearance, piston ring end gaps, and ignition timing benchmarks. The electrical section details the battery-coil ignition, AC generator performance characteristics, and rectifying system. Reference data includes:

• Cylinder head bolt torque is specified at 180–200 kg-cm (13–14.5 ft-lbs) in the engine data section.
• The Honda CB250 oil capacity is documented at 2 liters.
• The SL350 magneto magneto pick-up resistance values are documented for performance troubleshooting.

Reference only — always consult a certified technician before performing service on this equipment. An official 1972 Honda OEM workshop manual covering the CB250, CL250, CB350, CL350, and SL350 series, documenting engine, chassis, electrical, and fuel-delivery specifications for the K-series build.