5-29
VALVES AND VALVE SPRINGS
ENG
NOTE:
NOTE:
After replacing the valve guide, reface the valve
seat.
Valve guide remover
Intake (4.0 mm, 0.16 in)
90890-04111
Exhaust (4.5 mm, 0.18 in)
90890-04116, YM-4116
Valve guide installer
Intake (4.0 mm, 0.16 in)
90890-04112
Exhaust (4.5 mm, 0.18 in)
90890-04117, YM-4117
Valve guide reamer
Intake (4.0 mm, 0.16 in)
90890-04113
Exhaust (4.5 mm, 0.18 in)
90890-04118, YM-4118
3. Eliminate:
S
carbon deposits
(from the valve face and valve seat)
4. Check:
S
valve face
Pitting/ wear
!
Grind the valve face.
S
valve stem end
Mushroom shape or diameter larger than the
body of the valve stem
!
Replace the valve.
5. Measure:
S
valve margin thickness
a
Out of specification
!
Replace the valve.
Valve margin thickness
0.5
X
0.9 mm
(0.0197
X
0.0354 in)
<Limit>: 0.5 mm (0.02 in)
6. Measure:
S
valve stem runout
Out of specification
!
Replace the valve.
S
When installing a new valve, always replace
the valve guide.
S
If the valve is removed or replaced, always re-
place the oil seal.
Valve stem runout
0.01 mm (0.0004 in)
Summary of Contents for YZF-R1S
Page 1: ......
Page 50: ...2 22 TIGHTENING TORQUES SPEC Cylinder head tightening sequence Crankcase tightening sequence ...
Page 56: ...2 28 1 Thermostat 2 Radiator cap 3 Radiator 4 Oil cooler COOLING SYSTEM DIAGRAMS SPEC ...
Page 57: ...2 29 ENGINE OIL LUBRICATION CHART SPEC ENGINE OIL LUBRICATION CHART ...
Page 61: ...2 33 1 Main axle 2 Oil delivery pipe 3 Drive axle LUBRICATION DIAGRAMS SPEC ...
Page 62: ...2 34 1 Cylinder head 2 Crankshaft LUBRICATION DIAGRAMS SPEC ...
Page 346: ...7 2 FUEL INJECTION SYSTEM FI 7 WIRING DIAGRAM ...
Page 401: ...8 8 IGNITION SYSTEM ELEC EAS00735 IGNITION SYSTEM CIRCUIT DIAGRAM ...
Page 420: ...8 27 LIGHTING SYSTEM ELEC EAS00780 LIGHTING SYSTEM CIRCUIT DIAGRAM ...
Page 427: ...8 34 SIGNALING SYSTEM ELEC EAS00793 SIGNALING SYSTEM CIRCUIT DIAGRAM ...
Page 436: ...8 43 COOLING SYSTEM ELEC EAS00807 COOLING SYSTEM CIRCUIT DIAGRAM ...
Page 456: ......
Page 457: ......