1987–1990 Honda CBR600Fm Service Manual (P/N 62MV900)

• Document and coverage: A 220-page English-language PDF scan of Honda's CBR600FM model-specific shop manual, issued in December 1990, with model identification, specifications, torque tables, service limits, and a factory tool list.
• Engine repair procedures: Covers engine removal and installation, valve-clearance inspection and shim selection, camshaft and cylinder-head service, crankcase separation, piston and connecting-rod work, crankshaft service, and bearing selection.
• Fuel, lubrication, and cooling: Details carburetor-bank removal, separation, disassembly, combination, and synchronization, plus oil-pump and oil-cooler service, radiator and water-pump work, thermostat service, and coolant draining.
• Clutch and transmission work: Includes clutch removal and installation, clutch-outer needle-bearing replacement, gearshift-linkage service, shift-drum and shift-fork work, transmission removal, and mainshaft/countershaft disassembly and assembly.
• Chassis and brake coverage: Provides front- and rear-wheel service, fork overhaul, steering-stem and bearing work, shock-absorber and suspension-linkage service, swingarm bearing replacement, and master-cylinder and brake-caliper repair.
• Electrical diagnosis and diagrams: Includes charging, ignition, and starter circuit diagrams; peak-voltage and continuity tests; alternator, flywheel, starter-clutch, starter-motor, meter, and switch procedures; cable and harness routing; and area-specific full wiring diagrams.

CBR600FM Scope and Area Codes

This Honda Motor Co., Ltd. publication covers the carbureted, liquid-cooled 599 cc inline-four CBR600FM, including its six-speed constant-mesh transmission and cable-operated wet multiplate clutch. Honda states that the manual was written for readers who have acquired basic knowledge of Honda motorcycle maintenance. It is therefore suited to technicians and experienced owners who already understand standard workshop practice.

The applicability table marks ED, E, F, G (GI/GII), U, SW, SD, FI, IT, AR, and SP area types. The G entry distinguishes German full-power and limited-power versions. SA, ND, N, B, H, and D (DK/DM) appear in the table without the applicability mark, so the machine's type code should be checked before purchase. Variant-specific content includes the SW/AR air-injection control valve, the SW-only pilot-screw adjustment, and different ignition timing data for SW models.

This is a model-specific manual, not the complete Honda workshop library. Honda directs the reader to use it with the separate Motorcycle/Motor Scooter/ATV Common Service Manual because standard service methods, safety principles, and shared procedures are abbreviated here. The PDF is a page-image scan and does not contain a searchable OCR text layer.

Repair Depth Beyond Routine Maintenance

The maintenance section covers the service schedule, access points, air cleaner, spark plugs, valve clearance, carburetor synchronization, and side-stand inspection. The repair chapters go much deeper. They document cylinder-head and valve disassembly, crankcase splitting, piston and connecting-rod removal, crankshaft journal and connecting-rod bearing selection by factory color codes, transmission shaft teardown, and final reassembly checks.

Two manual-specific cautions show the level of detail. Connecting-rod bearings installed in the wrong locations can block their oil holes, causing lubrication loss and eventual engine seizure. The manual also warns that pulling a piston/connecting-rod assembly through the bottom of the cylinder can let the oil ring expand into the liner-to-crankcase gap and lock the assembly.

Chassis repair extends through fork disassembly and seal replacement, steering-bearing adjustment, rear shock and linkage work, swingarm bearing replacement, and wheel-bearing service. The brake chapter covers front and rear master cylinders and calipers, pad replacement, inspection limits, and system troubleshooting. It also identifies assembly errors that can compromise braking, including inverted master-cylinder cup lips, an incompletely seated snap ring, or contaminated pads and discs.

Diagrams, Test Data, and Factory Tools

Named technical illustrations include the Lubrication System Diagram, Cooling System Flow Pattern, and circuit diagrams for the charging, ignition, and electric-start systems. Section 19 adds full wiring layouts labeled for E/F/ED/SP/MX/SW, GI/GII/GIII, and AR types, with connector pin tables and switch-continuity matrices. Fault-finding charts cover hard starting, low power, poor low- and high-speed performance, poor handling, charging faults, no-spark conditions, starter interlocks, and meter or switch failures.

Reference data includes component-specific torque values, capacities, clearances, wear limits, bearing codes, brake and suspension limits, and electrical test specifications. The factory tool list supplies Honda numbers such as the tappet-hole protector 07HMG-MR70002, clutch-center holder 07JMB-MN50300, steering-stem socket 07916-3710100, and peak-voltage adapter 07HGJ-0020100.

Fuel-system service, hydraulic brake repair, spring-loaded fork work, and the nitrogen-charged rear shock all carry component-specific safety warnings. Engine removal also requires secure lifting and support equipment; follow the manual's precautions and use the specified tools for these operations.