1998–2001 Yamaha Grizzly 600 YFM600FWAN(C) Owner's Manual (P/N LIT-11626-14-06)

This PDF set pairs official operating literature for the Yamaha Grizzly 600 with factory repair material for the explicitly named K and L variants. It contains 509 PDF pages total: a 161-page owner's manual and a 348-page service file made up of the 318-page base manual, an 8-page California supplement, a 21-page YFM600FWAL/LC supplement, and one service-set cover. Yamaha states that the service manual was prepared primarily for dealers and qualified mechanics and assumes a basic understanding of mechanical repair; it is therefore suited to trained technicians and experienced owners who have the specified pullers, holding tools, gauges, and electrical test equipment. The owner's manual portion supports operating knowledge, preventive maintenance, and minor repair work.

• Documented model coverage: the YFM600FWAN(C) owner's manual, YFM600FWAK base service manual, YFM600FWACK California supplement, and YFM600FWAL/YFM600FWALC supplement.
• Engine repair procedures: engine removal, cylinder head and rocker-arm service, camshaft and timing system work, valve and valve-spring inspection, piston and cylinder service, crankcase separation, and crankshaft/balancer installation.
• CVT and internal drive service: primary and secondary sheave removal and assembly, centrifugal clutch inspection, V-belt checks, transmission and shift-component inspection, oil-pump service, and middle-gear shim selection and backlash measurement.
• Front and rear driveline repair: universal and constant-velocity joint service, differential disassembly and assembly, on-command 2WD/4WD gear-motor operation, rear-axle removal, final-drive gear positioning, and gear-lash adjustment.
• Brake, steering, and suspension work: front master-cylinder and caliper service, hydraulic brake bleeding, rear drum-brake repair, wheel and hub inspection, steering-stem and tie-rod work, toe-in adjustment, front-arm service, and swingarm and shock inspection.
• Electrical fault finding: switch and connector tests plus circuit diagrams for the ignition, electric starting, charging, lighting, cooling-fan, and 2WD/4WD selecting systems, backed by the full YFM600FWA wiring diagram.
• Owner operation and maintenance: pre-operation checks, 2WD/4WD switch use, oil-temperature warning-light checks, cold and warm starting, high/low/reverse selection, engine break-in, cargo and towing guidance, terrain techniques, and periodic service schedules.

Engine, Drivetrain, and Diagnostic Depth

The base service manual uses exploded assembly views, numbered job charts, and supporting step text throughout its removal and disassembly sections. The specifications identify the 595 cc air-cooled four-stroke SOHC single, wet-sump lubrication and oil-cooler circuit, Mikuni BST40 carburetor, electric and recoil starting, centrifugal clutch, and V-belt automatic transmission. Factory reference data includes component-specific torque tables, lubrication and cable-routing diagrams, wear limits, clearances, electrical test values, fluid capacities, and adjustment specifications.

The special-tool section names the crankcase separating tool 90890-01135 / YU-01135-A, sheave spring compressor 90890-04134 / YM-04134, gear-lash measurement tool 90890-01231 / YM-01231, and pocket tester 90890-03112 / YU-03112, along with valve, crankshaft, clutch, bearing-retainer, and universal-joint tools. Two cautions show the stakes: pressing directly on the middle driven shaft can damage its threads, while insufficient shaft-drive gear lash is destructive to the gear teeth. The manual also flags left-hand threads on the middle driven shaft and final-drive bearing retainers, an important detail during driveline repair.

Model-Specific Supplements

The YFM600FWACK California supplement is limited to model-code and carburetor specification changes. The YFM600FWAL/LC supplement identifies regional 5GT1 through 5GT5 configurations and updates engine, chassis, and electrical specifications, oil-cooler lubrication diagrams, and cable routing. Yamaha directs readers to use these supplements with the YFM600FWAK base manual, and all three service publications are present in the set. The YFM600FWAN(C) publication is the owner's manual; the included factory service chapters are assigned to the K and L model codes listed above.

Controls, Maintenance, and Riding

The owner's manual explains vehicle and model identification, the on-command 2WD/4WD controls and indicator behavior, the oil-temperature warning-light decision chart, speed-limiter adjustment, accessory-connector limits, and drive-selector operation. Its pre-ride checklist covers brakes, fuel, engine oil, final and differential oils, throttle action, axle boots, tires, lights, and fasteners. Separate chapters address loading and trailer limits, cold-weather starting, break-in, hill climbing and descending, slope crossing, shallow water, rough terrain, sliding, cleaning, storage, and basic troubleshooting.

The files retain Yamaha's publication identifiers: Owner's Manual P/N LIT-11626-14-06 (First Edition, April 2000), Service Manual LIT-11616-11-02 (First Edition, April 1997), California Supplement LIT-11616-11-21 (First Edition, July 1997), and YFM600FWAL/LC Supplement LIT-11616-12-37 (First Edition, September 1998). Brake, driveline, and internal-engine repair require the stated tools and mechanical knowledge; Yamaha warns that repair attempts without that foundation can leave the ATV unsafe or unfit for use.