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●
Remove the valve and inspect the valve seat face.
●
The valve seat contact should be within the specified
width and evenly all around the circumference.
If the valve seat width is not within specification,
reface the valve seat.
●
Measure the valve seat width.
STANDARD VALUE : 0.8
-1.0 mm
SERVICE LIMIT : 1.4 mm
VALVE SEAT REFACING
●
Reface the worn valve seat by using valve seat cutters
and grinders.
●
Using a 45 degree cutter, remove any roughness or
irregularities from the seat.
●
Using a 37 degree cutter, remove
¼
of the existing
valve seat material.
10-9
CYLINDER HEAD / VALVES
●
Valve faces and stem tips cannot be ground. If a valve
face or stem tip is rough, worn unevenly, or contacts
the seat improperly, the valve must be replaced.
!
NOTE
△
●
Follow the refacer manufactuer’s operating instructions.
●
Reface the valve seat whenever the valve guide has been
replaced.
●
Be careful not to grind the seat more than necessary.
!
NOTE
△
37
37
45
55
VALVE SEAT
VALVE SEAT
VALVE SEAT
VALVE SEAT
VALVE SEAT
VALVE SEAT
VALVE SEAT
VALVE SEAT
VALVE SEAT
VALVE SEAT
VALVE SEAT
VALVE SEAT
VALVE SEAT
VALVE SEAT
VALVE SEAT
VALVE SEAT
VALVE SEAT
VALVE SEAT
VALVE SEAT
VALVE SEAT
VALVE SEAT
VALVE SEAT
ROUGHNESS
Summary of Contents for B-BONE
Page 1: ......
Page 2: ......
Page 4: ......
Page 8: ...1 4 SERVICE INFORMATION...
Page 9: ...SERVICE INFORMATION 1 5...
Page 10: ...1 6 SERVICE INFORMATION...
Page 11: ...1 7 SERVICE INFORMATION...
Page 12: ...1 8 SERVICE INFORMATION...
Page 13: ...1 9 SERVICE INFORMATION...
Page 22: ...MEMO...
Page 24: ...2 2 INSPECTIONS ADJUSTMENTS...
Page 25: ...2 3 INSPECTIONS ADJUSTMENTS...
Page 34: ...MEMO...
Page 44: ...MEMO...
Page 45: ...4 1 LUBRICATION SYSTEM 4 1 4 2 4 3 4 3 4 4 4 7 4 8 4 4 4...
Page 99: ...MEMO...
Page 100: ...MEMO...
Page 116: ...8 0 LH CRANKCASECOVER CONTINUOUSL YV ARIABLETRANSMISSION LH CRANK CASE COVER...
Page 130: ...9 0 A C GENERATOR STARTER CLUTCH sai COOLING FAN FLY WHEEL STARTER COMP SAI LID VALVE...
Page 131: ...9 9 9 9 9 9 9 9 1 A C GENERATOR STARTER CLUTCH 9 16...
Page 139: ...MEMO...
Page 156: ...11 0 CYLINDER PISTON CYLINDER CYLINDER GASKET PISTON TOPRING SECONDRING OILRING...
Page 160: ...11 4 CYLINDER PISTON...
Page 163: ...MEMO...
Page 164: ...12 0 TRANSMISSION CRANKSHAFT CRANK CASE...
Page 175: ...MEMO...
Page 190: ...14 0 REAR WHEEL SUSPENSION REAR SWING ARM...
Page 198: ...MEMO...
Page 199: ...MEMO...
Page 200: ...15 0 BRAKE SYSTEM...
Page 214: ...16 0 CHARGING SYSTEM 15A...
Page 234: ...MEMO...
Page 241: ...MEMO...
Page 242: ...MEMO...
Page 243: ...0 1 WIRING DIAGRAM EURO 2 WIRING DIAGRAM...
Page 244: ...0 2 WIRING DIAGRAM EURO 3 WIRING DIAGRAM...
Page 245: ...SERVICEMANUAL 2009 02 PRINTED 2009 02 PUBLICATION C CO OP PY Y P PR RO OH HI IB BI IT T...
Page 246: ......