Yamaha YZ125 Owner's Manual

Also see for YZ 125: Parts catalog Owner's service manual Owner's service manual Owner's service manual Owner's service manual

12345678910GENERAL INFORMATIONSAFETY INFORMATION ..................................................................................1-1FOR SAFETY, BE SURE TO OBEY THE FOLLOWING:...........................1-1LOCATION OF IMPORTANT LABELS.............................................................1-4DESCRIPTION..................................................................................................1-5IDENTIFICATION ..............................................................................................1-6VEHICLE IDENTIFICATION NUMBER ......................................................1-6ENGINE SERIAL NUMBER........................................................................1-6INCLUDED PARTS ...........................................................................................1-7SIDESTAND ...............................................................................................1-7NIPPLE WRENCH ......................................................................................1-7VALVE JOINT .............................................................................................1-7COLLAR (tool for YPVS) ............................................................................1-7IMPORTANT INFORMATION ...........................................................................1-8PREPARATION FOR REMOVAL AND DISASSEMBLY ............................1-8REPLACEMENT PARTS ............................................................................1-8INSTRUMENT AND CONTROL FUNCTIONS .................................................1-9ENGINE STOP SWITCH ............................................................................1-9SHIFT PEDAL.............................................................................................1-9KICKSTARTER LEVER ..............................................................................1-9FRONT BRAKE LEVER .............................................................................1-9REAR BRAKE PEDAL................................................................................1-9FUEL COCK ...............................................................................................1-9STARTER KNOB (CHOKE)......................................................................1-10STARTING AND BREAK-IN ...........................................................................1-11FUEL AND ENGINE MIXING OIL.............................................................1-11STARTING A COLD ENGINE ..................................................................1-11STARTING A WARM ENGINE .................................................................1-11BREAK-IN PROCEDURES ......................................................................1-11MAINTENANCE AFTER BREAK-IN ..............................................................1-13MAJOR MAINTENANCE ..........................................................................1-13AIR FILTER MAINTENANCE ...................................................................1-13TORQUE-CHECK POINTS.............................................................................1-14MOTORCYCLE CARE AND STORAGE.........................................................1-16CARE ........................................................................................................1-16