CHAPTER 3 ENGINE
ATV SERVICE MANUAL 2005/
version number 0501
CHAPTER 3 ENGINE PAGE. 3- 29
3. Measure:
Valve seat width
○
a
Out of specification
→
Reface the valve seat.
Valve seat width:
Intake:
0.9-1.1mm
<Limit:1.6mm>
Exhaust:
0.9-1.1mm
<Limit:1.6mm>
Measurement step:
Apply Mechanic’s blueing dye (Dykem)
to
the valve face.
Install the valve into the cylinder head.
Press the valve through the valve guide and
onto the valve seat to make a clear pattern.
Measure the valve seat width. Where the valve
seat and valve face made contact, blueing will
have been removed.
If the valve seat is too wide, too narrow, or the
seat is not centered, the valve seat must be
replaced.
4. Lap:
Valve face
Valve seat
NOTE:
After replacing the valve seat, valve and valve
guide, the valve seat and valve face should be
lapped.
Lapping steps:
Apply a coarse lapping com pound
○
a
to the
valve face.
CAUTION:
Do not let compound enter the gap between the
valve stem and the guide.
Apply molybdenum disulfide oil to the valve
stem.
Install the valve into the cylinder head.
Turn the valve until the valve face and valve
seat are evenly polished, then clean off al com
pound.
NOTE:
Summary of Contents for LH400CUV-2
Page 1: ...LH400CUV 2 SERVICE MANUAL ...
Page 11: ...CHAPTER 1 GENERALINFORMATION CUV SERVICE MANUAL 09 0 CHAPTER 1 GENERAL PAGE 1 7 NOTES 12 ...
Page 17: ...CHAPTER 2 MAINTENANCE CUV SERVICE MANUA 09 0 CHAPTER 2 MAINTENANCE PAGE 2 6 ...
Page 26: ...CHAPTER 2 MAINTENANCE CUV SERVICE MANUA 09 0 CHAPTER 2 MAINTENANCE PAGE 2 15 NOTES ...
Page 94: ...CHAPTER 3 ENGINE ATV SERVICE MANUAL 2005 version number 0501 CHAPTER 3 ENGINE PAGE 3 68 NOTES ...
Page 95: ...CHAPTER 3 ENGINE ATV SERVICE MANUAL 2005 version number 0501 CHAPTER 3 ENGINE PAGE 3 69 ...
Page 107: ...CHAPTER 4 CHASSIS CUV SERVICE MANUAL 09 0 CHAPTER 4 CHASSIS PAGE 4 12 NOTES ...
Page 135: ...CHAPTER 5 FINAL DRIVE CUV SERVICE MANUAL 09 0 CHAPTER 5 FINAL DRIVE 5 28 NOTES ...
Page 150: ...CHAPTER 6 TRANSMISSION CUV SERVICE MANUAL 07 0 CHAPTER 6 TRANSMISSION PAGE 6 15 NOTES ...
Page 165: ...CHAPTER 7 BRAKES CUV SERVICE MANUAL 09 0 CHAPTER 7 BRAKES PAGE 7 15 NOTES ...
Page 172: ...CHAPTER 8 ELECTRICAL CUV SERVICE MANUAL 09 0 CHAPTER 8 ELECTRICAL PAGE 8 7 CIRCUIT DIAGRAM ...
Page 205: ...CHAPTER 8 ELECTRICAL CUV SERVICE MANUAL 09 0 CHAPTER 8 ELECTRICAL CTRICAL PAGE 8 40 Fig 4 ...
Page 207: ...CHAPTER 8 ELECTRICAL CUV SERVICE MANUAL 09 0 CHAPTER 8 ELECTRICAL CTRICAL PAGE 8 42 ...
Page 208: ...CHAPTER 8 ELECTRICAL CUV SERVICE MANUAL 09 0 CHAPTER 8 ELECTRICAL CTRICAL PAGE 8 43 NOTES ...