Yamaha MBK X-MAX 300 2017, Service Manual

Page: 193 / 462

5
ENGINE
LUBRICATION SYSTEM CHART AND DIAGRAMS ...................................... 5-1
ENGINE OIL LUBRICATION CHART ....................................................... 5-1
LUBRICATION DIAGRAMS ...................................................................... 5-2
ENGINE INSPECTION .................................................................................... 5-5
MEASURING THE COMPRESSION PRESSURE .................................... 5-5
CHECKING THE BREATHER HOSES ..................................................... 5-6
ENGINE REMOVAL ........................................................................................ 5-7
INSTALLING THE ENGINE..................................................................... 5-11
CONNECTING THE LEADS ................................................................... 5-11
INSTALLING THE EXHAUST PIPE AND MUFFLER.............................. 5-12
CYLINDER HEAD .......................................................................................... 5-13
REMOVING THE CYLINDER HEAD....................................................... 5-17
CHECKING THE CYLINDER HEAD ....................................................... 5-17
CHECKING THE CAMSHAFT SPROCKET ............................................ 5-18
CHECKING THE TIMING CHAIN TENSIONER...................................... 5-18
INSTALLING THE CYLINDER HEAD ..................................................... 5-18
CAMSHAFT ................................................................................................... 5-22
REMOVING THE CAMSHAFT ................................................................ 5-23
CHECKING THE CAMSHAFT ASSEMBLY ............................................ 5-23
CHECKING THE ROCKER ARMS AND ROCKER ARM SHAFTS ........ 5-23
INSTALLING THE CAMSHAFT............................................................... 5-24
VALVES AND VALVE SPRINGS .................................................................. 5-26
REMOVING THE VALVES...................................................................... 5-27
CHECKING THE VALVES AND VALVE GUIDES .................................. 5-27
CHECKING THE VALVE SEATS ............................................................ 5-29
CHECKING THE VALVE SPRINGS........................................................ 5-30
INSTALLING THE VALVES .................................................................... 5-30
CYLINDER AND PISTON .............................................................................. 5-32
REMOVING THE PISTON ...................................................................... 5-33
CHECKING THE CYLINDER AND PISTON ........................................... 5-33
CHECKING THE PISTON RINGS........................................................... 5-34
CHECKING THE PISTON PIN ................................................................ 5-35
CHECKING THE TIMING CHAIN GUIDE (EXHAUST SIDE) ................. 5-35
INSTALLING THE PISTON AND CYLINDER ......................................... 5-35