1987-2000 Yamaha Big Bear YFM350 service manual

Table of Contents

1. General Information
   • Vehicle Identification
   • Vehicle Identification Number
   • Model Label
   • Features
   • Important Information
   • Preparation for Removal and Disassembly
   • Replacement Parts
   • Gaskets, Oil Seals, and O-Rings
   • Lock Washers/Plates and Cotter Pins
   • Bearings and Oil Seals
   • Circlips
   • Checking the Connections
   • Special Tools
2. Specifications
   • General Specifications
   • Engine Specifications
   • Chassis Specifications
   • Electrical Specifications
   • Tightening Torques
   • Engine Tightening Torques
   • Chassis Tightening Torques
   • General Tightening Torque Specifications
   • Lubrication Points and Lubricant Types
   • Lubrication Diagrams
   • Cable Routing
3. Periodic Checks and Adjustments
   • Introduction
   • Periodic Maintenance Chart for the Emission Control System
   • General Maintenance and Lubrication Chart
   • Seat, Carriers, Fenders, Fuel Tank, and Air Filter
   • Footrest Boards
   • Engine
   • Chassis
   • Electrical System
4. Engine
   • Engine Removal
   • Muffler and Exhaust Pipe
   • Leads, Cables, and Hoses
   • Engine Mounting Bolts
   • Installing the Engine
   • Oil Cooler
   • Cylinder Head
   • Camshaft, Rocker Arms, and Valves
   • Cylinder and Piston
   • Recoil Starter and AC Magneto Rotor
   • Shift Shaft
   • Clutch
   • Balancer Gears and Oil Pump
   • Crankcase
   • Crankshaft
   • Transmission
   • Middle Gear
5. Carburetor
   • Carburetor
   • Disassembling the Carburetor
   • Checking the Carburetor
   • Assembling the Carburetor
   • Adjusting the Fuel Level
6. Drive Train
   • Troubleshooting
   • Front Constant Velocity Joints and Differential Gear
   • Rear Constant Velocity Joints and Final Drive Gear
7. Chassis
   • Front and Rear Wheels
   • Front Brake
   • Rear Brake
   • Steering System
   • Front Arms and Front Shock Absorbers
   • Rear Knuckles and Stabilizer
   • Rear Arms and Rear Shock Absorbers
8. Electrical
   • Electrical Components
   • Checking Switch Continuity
   • Checking the Switches
   • Checking the Bulbs and Bulb Sockets
   • Ignition System
   • Electric Starting System
   • Starter Motor
   • Charging System
   • Lighting System
   • Signaling System
   • Cooling System
   • 2WD/4WD Selecting System
   • Carburetor Warming System
9. Troubleshooting
   • Starting Failure/Hard Starting
   • Poor Idle Speed Performance
   • Poor Medium and High-Speed Performance
   • Faulty Drive Train
   • Faulty Gear Shifting
   • Faulty Clutch Performance
   • Overheating
   • Faulty Brake
   • Shock Absorber Malfunction
   • Unstable Handling
   • Lighting System