Engine Inspection - Yamaha ttr230 Service Manual

ENGINE REMOVAL ..........................................................................4-1
SEAT, FUEL TANK AND COVERS .................................................4-1
CRANKCASE GUARD ................................................................4-1
ENGINE OIL ..............................................................................4-1
BATTERY CABLES ....................................................................4-2
EXHAUST TUBE AND MUFFLER .................................................4-2
BREATHER HOSE AND CARBURETOR ........................................4-3
CABLES AND WIRING ................................................................4-3
TRANSMISSION CHAIN .............................................................4-5
ENGINE REMOVAL ....................................................................4-6
ENGINE DISMOUNTING ..................................................................4-8
HEAD, CYLINDER AND PISTON ..................................................4-8
MAGNET ROTOR AND STARTING GEARS .................................. 4-12
OIL FILTER .............................................................................. 4-14
CLUTCH, OIL PUMP AND BALANCER GEAR. .................................. 4-15
SHIFT SHAFT. ......................................................................... 4-18
CASE (RIGHT). ........................................................................ 4-19
BALANCER, TRANSMISSION AND SHIFTING FORK..................... 4-20
CRANKSHAFT ........................................................................ 4-21
ROCKER AND CAMSHAFT ....................................................... 4-22
VALVES ................................................................................. 4-23
INSPECTION AND REPAIR. ............................................................. 4-25
HEAD ................................................................................... .4-25
VALVE SEAT. ........................................................................... 4-26
VALVES AND VALVE GUIDES .................................................... 4-29
VALVE SPRING ...................................................................... .4-31
CAMSHAFT ............................................................................ 4-32
ROCKER AND ROCKER SHAFT. ................................................. 4-33
CHAPTER 4.
ENGINE INSPECTION
ENGINE