Yamaha YP400T, YP400V, YP400W Service Manual page 72

PERIODIC CHECKS AND ADJUSTMENTS
INTRODUCTION.............................................................................................. 3-1
PERIODIC MAINTENANCE CHART FOR THE EMISSION
CONTROL SYSTEM.......................................................................................3-1
GENERAL MAINTENANCE AND LUBRICATION CHART............................ 3-2
COWLING AND COVERS............................................................................... 3-4
PASSENGER SEAT AND SIDE COVERS................................................ 3-4
RIDER SEAT AND STORAGE BOX .........................................................3-5
SIDE COVER MOULDINGS AND FOOTREST BOARDS ........................3-7
FRONT COWLING .................................................................................... 3-8
AIR FILTER CASES ......................................................................................3-10
ENGINE .........................................................................................................3-11
ADJUSTING THE VALVE CLEARANCE ................................................ 3-11
ADJUSTING THE EXHAUST GAS VOLUME .........................................3-16
CHECKING THE ENGINE IDLING SPEED ............................................3-17
ADJUSTING THE THROTTLE CABLE FREE PLAY ..............................3-18
CHECKING THE SPARK PLUG ............................................................. 3-18
CHECKING THE IGNITION TIMING.......................................................3-20
MEASURING THE COMPRESSION PRESSURE..................................3-21
CHECKING THE ENGINE OIL LEVEL....................................................3-23
CHANGING THE ENGINE OIL ...............................................................3-24
CHANGING THE TRANSMISSION OIL.................................................. 3-27
REPLACING THE AIR FILTER ELEMENTS...........................................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 COOLANT LEVEL.......................................................3-32
CHECKING THE COOLING SYSTEM ....................................................3-33
CHANGING THE COOLANT................................................................... 3-34
CHAPTER 3
CHK
ADJ