ENGINE
- 147 -
1
、
CHECK
• valve sealing
Leakage at the valve seat
Check the valve
face, valve seat and valve seat width.
a. Pour a clean solvent
①
into the intake and
exhaust ports.
b. Check that the valve seals properly. There
should be no leakage at the valve seat
②
.
• valve face
Pitting/wear
Grind the face.
• valve stem end
Mushroom shape or diameter larger than the
body of the stem
Replace.
• valve seats
Pitting/wear
Reface the valve seat.
2
、
MEASURE:
1).Measure:
• The valves surface width
Repairing limit value
2.0mm
• stem-to-guide clearance
Stem-to-guide clearance = valve guide
inside diameter – valve stem diameter
1
NOTE
:
If the mating surface is coarse, corrode or
cannot contact with valve seat normally,
replace it.
Stem-to-guide clearance
repairing limit value
Intake:0.12mm Exhaust:0.14mm
• margin thickness (a)
Out of specification
Replace.
Margin thickness
Intake:0.85 ~ 1.15 mm
Exhaust:0.85 ~ 1.15 mm
Содержание HS700UTV-4
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Страница 96: ...SPECIFICATIONS 83 LUBRICATION OIL WAY Hydrographic chart Pressure splashing oil...
Страница 149: ...ENGINE 136 No Part Name Qty Remarks 13 Thermo switch 1 1 For installation reverse the removal procedure...
Страница 242: ...CHASSIS 229 No Part Name Qty Remarks 25 Dust seal 1 26 Caliper piston seal 1 27 Bleed screw 1...
Страница 291: ...CHASSIS 278 No Part Name Qty Remarks 12 Spring washer 8 4 13 Washer 8 16 1 6 2 14 Washer 10 20 2 2...
Страница 293: ...CHASSIS 280 No Part Name Qty Remarks 11 Cross large plate head screw M6 16 4 12 Nut clip M6 4...
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