Yamaha EK25BMH Service Manual page 39

CHK
ADJ
PERIODIC CHECK AND ADJUSTMENT
MAINTENANCE INTERVAL CHART .............................................................. 3-1
TOP COWLING ............................................................................................... 3-2
CHECKING THE TOP COWLING FIT ....................................................... 3-2
FUEL SYSTEM ................................................................................................ 3-2
CHECKING THE FUEL LINE .................................................................... 3-2
CHECKING THE FUEL FILTER .................................................................3-3
CHECKING THE FUEL PUMP ................................................................. 3-3
CHECKING THE FUEL JOINT ................................................................. 3-3
CONTROL SYSTEM .......................................................................................3-4
ADJUSTING THE IGNITION TIMING ..................................................... 3-4
ADJUSTING THE ENGINE IDLE SPEED .............................................. 3-15
ADJUSTING THE START -IN-GEAR PROTECTION DEVICE ................. 3-17
POWER UNIT ............................................................................................... 3-18
MEASURING THE COMPRESSION PRESSURE .................................. 3-18
COOLING SYSTEM ...................................................................................... 3-19
CHECKING THE COOLING WATER DISCHARGE ................................ 3-19
LOWER UNIT ................................................................................................ 3-19
CHECKING THE GEAR OIL LEVEL ....................................................... 3-19
CHANGING AND CHECKING THE GEAR OIL ..................................... 3-19
CHECKING THE LOWER UNIT (FOR AIR LEAKS) ...............................3-20
GENERAL ..................................................................................................... 3-21
CHECKING THE ANODE ....................................................................... 3-21
CHECKING THE SPARK PLUGS ........................................................... 3-22
CHECKING THE PROPELLER ................................................................ 3-23
CHECKING BOLTS AND NUTS ............................................................ 3-23
LUBRICATION POINTS ......................................................................... 3-24
CHAPTER 3
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