5-28
VALVES AND VALVE SPRINGS
ENG
NOTE:
NOTE:
4. Remove:
S
upper spring seat
1
S
valve spring
2
S
valve stem seal
3
S
lower spring seat
4
S
valve
5
Identify the position of each part very carefully
so that it can be reinstalled in its original place.
EAS00239
CHECKING THE VALVES AND VALVE
GUIDES
The following procedure applies to all of the
valves and valve guides.
1. Measure:
S
valve-stem-to-valve-guide clearance
Valve-stem-to-valve-guide clearance =
Valve guide inside diameter
A
–
Valve stem diameter
B
Out of specification
!
Replace the valve
guide.
Valve-stem-to-valve-guide
clearance
Intake
0.0010
X
0.0037 mm
(0.0004
X
0.0015 in)
<Limit>: 0.08 mm (0.0032 in)
Exhaust
0.025
X
0.052 mm
(0.0010
X
0.0020 in)
<Limit>: 0.10 mm (0.0039 in)
2. Replace:
S
valve guide
To ease valve guide removal and installation,
and to maintain the correct fit, heat the cylinder
head to 100
_
C (212
_
F) in an oven.
a. Remove the valve guide with the valve guide
remover
1
.
b. Install the new valve guide with the valve
guide installer
2
and valve guide remover
1
.
c. After installing the valve guide, bore the
valve guide with the valve guide reamer
3
to
obtain the proper valve-stem-to-valve-guide
clearance.
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: ......