Chk Adj - Yamaha YW125Y 2009 Service Manual

INTRODUCTION ....................................................................................... 3-1
PERIODIC MAINTENANCE AND ADJUSTMENT ................................. 3-1
Periodic maintenance chart for the emission control system ........... 3-1
Genela maintenance and lublication chart ....................................... 3-2
COVER AND PANEL ................................................................................ 3-4
SEAT AND TRUNK ............................................................................ 3-4
FOOTREST BOARD.......................................................................... 3-5
LEG SHIELD 1 ASSEMBLY AND LEG SHIELD 2............................ 3-7
ENGINE ..................................................................................................... 3-9
ADJUSTING THE VALVE CLEARANCE........................................... 3-9
CHECKING THE ENGINE IDLING SPEED .................................... 3-12
ADJUSTING THE THROTTLE CABLE FREE PLAY ...................... 3-13
ADJUSTING THE SEAT SPRING FORCE ..................................... 3-14
CHECKING THE SPARK PLUG ...................................................... 3-15
CHECKING THE IGNITION TIMING ............................................... 3-17
MEASURING THE COMPRESSION PRESSURE ......................... 3-19
CHECKING THE ENGINE OIL LEVEL ........................................... 3-22
CHANGING THE ENGINE OIL ........................................................ 3-23
CHANGING THE TRANSMISSION OIL .......................................... 3-25
MEASURING THE ENGINE OIL PRESSURE................................ 3-26
CLEANING THE AIR FILTER ELEMENT ....................................... 3-28
CLEANING THE V-BELT CASE AIR FILTER ELEMENT ............... 3-29
CHECKING THE THROTTLE BODY JOINT AND INTAKE
MANIFOLD ................................................................................... 3-30
CHECKING THE FUEL HOSE ........................................................ 3-30
CHECKING THE BREATHER HOSES ........................................... 3-31
CHECKING THE EXHAUST SYSTEM ........................................... 3-32
CHECKING THE CANISTER AND ROLL OVER VALVE ............... 3-33
CHASSIS ................................................................................................. 3-35
CHECKING THE FRONT BRAKE................................................... 3-35
ADJUSTING THE REAR BRAKE.................................................... 3-35
CHECKING THE BRAKE FLUID LEVEL ........................................ 3-36
CHECKING THE FRONT BRAKE PADS ........................................ 3-37
CHECKING THE REAR BRAKE SHOES ....................................... 3-37
CHECKING THE FRONT BRAKE HOSE ....................................... 3-37
BLEEDING THE HYDRAULIC BRAKE SYSTEM........................... 3-38
CHECKING AND ADJUSTING THE STEERING HEAD ................ 3-40
CHECKING THE FRONT FORK ..................................................... 3-42
PERIODIC CHECKS AND ADJUSTMENTS
CHAPTER 3
3-59
CHK
ADJ