CHAPTER 3B ENGINE 50cc/80cc
ATV SERVICE MANUAL09.0
CHAPTER 3B ENGINE PAGE 3B - 7 -
IN 4.975-4.990
4.9
Valve bar outer diameter
EX 4.955-4.970
4.9
IN 5.0-5.012
5.3
Valve guide pipe inner
diameter
EX 5.0-5.012
5.3
IN 0.010-0.037
0.08
Gap between valve bar and
guide pipe
EX 0.030-0.057
0.10
Inner spring
30.5 26.1
Valve spring
Outer spring
33.5 30.5
Torque Value
Camshaft bolt 20N.m 15 ft
.
lbs lubricate threads with oil
Valve gap adjusting screw cap 8N. m 6 ft
.
lbs
Tools:
General tools
Valve spring compressor
45°
IN/EX
Valve seat reamer 24.5mm
Plane reamer 30° IN
Valve seat reamer 25mm
Plane reamer 32° EX
Valve seat reamer 22mm
Plane reamer 60° IN/ EX
Valve seat reamer 26mm
Reamer damping fixture 5mm
Special tools
Valve spring compressor accessories
Valve gap regulatory spanner
Valve guide screwdriver
Valve guide reamer
Trouble diagnosis
●
Confirm poor operation of cylinder head by
measuring pressure or by noise produced by
engine upper end.
Slow speed hitch
White smoke from exhaust pipe
●
too low compression pressure
●
wearing of valve guide
●
bad valve gap
●
broken oil seal
●
burning or curving of valve
Abnormal noise
●
bad valve timing
●
bad valve gap
●
broken valve spring
●
broken or burning of valve or valve spring
●
bad valve seat
●
wearing and breaking of camshaft
●
leakage of cylinder head gasket
●
wearing of inner chain adjusting plate
●
cylinder head surface warping or cracking
●
wearing of camshaft and valve rocker arm
●
bad spark plug
Too high compressed pressure
●
too much carbon build-up in combustion
chamber
Содержание 2004 ATV 260
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Страница 58: ...CHAPTER 3A ENGINE 260 300 400 cc ATV SERVICE MANUAL09 0 CHAPTER 3 ENGINE PAGE 3A 19 3 3CYLINDER HEAD...
Страница 118: ...CHAPTER 3A ENGINE 260 300 400 cc ATV SERVICE MANUAL09 0 CHAPTER 3 ENGINE PAGE 3A 79 NOTES...
Страница 171: ...CHAPTER 3B ENGINE 50cc 80cc ATV SERVICE MANUAL09 0 CHAPTER 3B ENGINE PAGE 3B 53 3 8 Carburetor...
Страница 192: ...CHAPTER 3B ENGINE 50cc 80cc ATV SERVICE MANUAL09 0 CHAPTER 3B ENGINE PAGE 3B 74 NOTES...
Страница 228: ...CHAPTER 3C ENGINE 100 125 150 200 SERVICE MANUAL09 0 CHAPTER 3C ENGINE PAGE 3C 36 NOTES...
Страница 247: ...CHAPTER 4B CHASSIS ATV SERVICE MANUAL09 0 CHAPTER 4 CHASSIS PAGE 4B 11 NOTES...
Страница 279: ...CHAPTER 5 FINAL DRIVE ATV SERVICE MANUAL 09 0 CHAPTER 5 FINAL DRIVE 5 32 NOTES...
Страница 292: ...CHAPTER 6 TRANSMISSION ATV SERVICE MANUAL 09 0 CHAPTER 6 TRANSMISSION PAGE 6 13 2X4 TRANSMISSION EXPLODED VIEW...
Страница 293: ...CHAPTER 6 TRANSMISSION ATV SERVICE MANUAL 09 0 CHAPTER 6 TRANSMISSION PAGE 6 14 4X4 TRANSMISSION EXPLODED VIEW...
Страница 294: ...CHAPTER 6 TRANSMISSION ATV SERVICE MANUAL 09 0 CHAPTER 6 TRANSMISSION PAGE 6 15 NOTES...
Страница 307: ...CHAPTER 7 BRAKES ATV SERVICE MANUAL 09 0 CHAPTER 7 BRAKES PAGE 7 13 NOTES...
Страница 315: ...CHAPTER 8 ELECTRICAL ATV SERVICE MANUAL 09 0 CHAPTER 8 ELECTRICAL PAGE 8 8 CIRCUIT DIAGRAM...
Страница 332: ...CHAPTER 8 ELECTRICAL ATV SERVICE MANUAL 09 0 CHAPTER 8 ELECTRICAL CTRICAL PAGE 8 25 8 7 LIGHTING SYSTEM FOR USA MODEL...
Страница 333: ...CHAPTER 8 ELECTRICAL ATV SERVICE MANUAL 09 0 CHAPTER 8 ELECTRICAL CTRICAL PAGE 8 26 FOR EUROPE MODEL...
Страница 339: ...CHAPTER 8 ELECTRICAL ATV SERVICE MANUAL 09 0 CHAPTER 8 ELECTRICAL CTRICAL PAGE 8 32 Switch schematic...
Страница 348: ...CHAPTER 8 ELECTRICAL ATV SERVICE MANUAL 09 0 CHAPTER 8 ELECTRICAL CTRICAL PAGE 8 41 Fig 2 Fig 3 Page from owner s manual...
Страница 349: ...CHAPTER 8 ELECTRICAL ATV SERVICE MANUAL 09 0 CHAPTER 8 ELECTRICAL CTRICAL PAGE 8 42 Fig 4...
Страница 350: ...CHAPTER 8 ELECTRICAL ATV SERVICE MANUAL 09 0 CHAPTER 8 ELECTRICAL CTRICAL PAGE 8 43 8 14 WIRING DIAGR...
Страница 351: ...CHAPTER 8 ELECTRICAL ATV SERVICE MANUAL 09 0 CHAPTER 8 ELECTRICAL CTRICAL PAGE 8 44...
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Страница 362: ...ATV SERVICE MANUAL EUROPE 09 0 PN F010102A01 ATV 09 0 F010102A01...