2002 Yamaha YFM660F(P) Grizzly 660 Factory Service Manual (P/N 5KM2-AE1)

• Covers 2002 Yamaha YFM660F(P) Grizzly 660 ATV models in 5KM2, 5KM3, and 5KM4 configurations with 660 cc liquid-cooled SOHC engines
• Official Yamaha Motor Co., Ltd. publication, P/N 5KM2-AE1, First Edition May 2001
• Contains 431 pages of technical specifications, maintenance schedules, lubrication charts, and cable routing diagrams across engine, chassis, electrical, and transmission systems
• This 2001 first edition serves as the original baseline document for the 5KM2-AE1 build series

Content Overview and Documentation

The 2002 Yamaha YFM660F(P) service manual delivers the exact specifications required to maintain the Grizzly 660 drivetrain, chassis, and cooling networks. You get detailed chapters outlining general information, periodic inspection routines, and critical lubrication intervals. It takes a deep dive into the unique 3-axle transmission and 4WD differential-lock mechanism. The documentation goes far beyond basic upkeep. Expect extensive technical data on valve clearances, piston ring end gaps, and precise torque requirements for all major assemblies.

Specification Highlights

Cooling system capacity for this model sits at 1.8 liters. In the maintenance tables, standard intake valve clearance ranges from 0.10 to 0.15 mm. A periodic change of the final gear oil requires 0.25 liters, and cylinder head bolts demand a specific 38 Nm (27 ft-lbs) of torque. Working on ATVs involves heavy mechanical assemblies and pressurized systems that require strict adherence to factory standards to prevent injury or mechanical failure. The specifications mentioned here are strictly for reference. Always rely on the complete OEM documentation and proper technical training before performing any hands-on shop work.