TOOLS
VALVE GUIDE REAMER
VALVE GUIDE DRIVER
VALVE SPRING COMPRESSOR
VALVE SEAT CUTTER
SEAT CUTTER IN 37 (21.5mm)
EX 37 (18.5mm)
IN 45 (22.0mm)
EX 45 (22.0mm)
IN 55 (20.0mm)
EX 55 (20.0mm)
TROUBLESHOOTING
Enging top-end problems useally affect engine performance. These can be diagnosed by a compression or leak down test,
or by tracing noises to the top-end with a sounding rod or stethoscope.
9-2
CYLINDER HEAD / VALVES
Low comperssion
Valves
-Incorrect valve adjustment (see section 3)
-Burned or bent valves
-Incorrect valve timing
-Broken valve spring
-Uneven valve seating
Cylinder head
-Leaking or damage head gasket
-Warped or cracked cylinder head
Cylinder, piston (see section 10)
Excessive white smoke
Worn valve guide or valve stem
Damaged valve stem seal
Worn or damaged piston ring
Rough idle
Low cylinder compression
Compression too high
Excessive carbon build-up on piston or combustion
chamber
Excessive noise
Incorrect valve adjustment
Sticking valve or broken valve spring
Damaged or worn camshaft
Worn rocker arm and / or shaft
Loose or worn cam chain
Worn or damaged cam chain tensioner
Damaged cylinder head gasket
Incorrect spark plug installation
Содержание BESDI 125 - SERVICE
Страница 1: ......
Страница 11: ...1 9 SERVICE INFORMATION SERIAL NUMBER LOCATION ENGINE SERIAL NUMBER LOCATION FRAME SERIAL NUMBER LOCATION...
Страница 36: ...3 10 MEMO...
Страница 45: ...MEMO...
Страница 46: ...MEMO...
Страница 58: ...MEMO...
Страница 62: ...7 0 LH CRANKCASECOVER KICKSTARTER CONTINUOUSLYVARIABLE TRANSMISSION...
Страница 67: ...Install the LH crankcase cover 7 5 LH CRANKCASECOVER KICKSTARTER CONTINUOUSLYVARIABLE TRANSMISSION...
Страница 79: ...MEMO...
Страница 80: ...8 0 A C GENERATOR STARTER CLUTCH...
Страница 89: ...MEMO...
Страница 90: ...9 0 CYLINDER HEAD VALVES...
Страница 106: ...10 0 CYLINDER PISTON...
Страница 113: ...MEMO...
Страница 114: ...11 0 TRANSMISSION CRANKSHAFT CRANK CASE...
Страница 125: ...MEMO...
Страница 126: ...MEMO...
Страница 138: ...MEMO...
Страница 146: ...MEMO...
Страница 155: ...MEMO...
Страница 157: ...CHARGING DEVICE LOCATION 15 2 BATTERY CHARGING SYSTEM A CGENERATOR C D I UNIT REGULATOR RECTIFIER KEY SET IGNITION UNIT...
Страница 163: ...16 2 IGNITION SYSTEM IGNITION DEVICES LOCATION A CGENERATOR C D I UNIT BATTRY REGULATOR RECTIFIER KEY SET IGNITION UNIT...
Страница 167: ...MEMO...
Страница 169: ...17 2 STARTER SYSTEM STARTER DEVICES LOCATION A CGENERATOR C D I UNIT BATTRY REGULATOR RECTIFIER KEY SET IGNITION UNIT...
Страница 181: ...MEMO...
Страница 187: ...MEMO...
Страница 188: ...G Gr B G O Lb Lb I GNI TI ON SWI TCH I GNI TI ON SWI T CH FUEL UNI T G O ENGI NE STOP SWI T CH COMBI MERER ASS Y PASS...
Страница 189: ...MEMO...
Страница 190: ...MEMO...
Страница 191: ...MEMO...
Страница 192: ...SERVICEMANUAL 2007 09 PRINTED 2007 09 PUBLICATION...
Страница 193: ......