Yamaha YZF-R1S Service Manual - Eng
5-16
CAMSHAFT
ENG
NOTE:
3. Measure:
Scamshaft runout
Out of specification
! Replace.
Camshaft runout limit
0.03 mm (0.0012 in)
4. Measure:
Scamshaft-journal-to-camshaft-cap clear-
ance
Out of specification
! Measure the camshaft
journal diameter.
Camshaft-journal-to-camshaft-
cap clearance
0.028
X 0.062 mm
(0.0011
X 0.0024 in)
a. Install the camshaft into the cylinder head
(without the dowel pins and camshaft caps).
b. Position strip of Plastigauge
1
onto the
camshaft journal as shown.
c. Install the dowel pins and camshaft caps.
STighten the camshaft cap bolts in stages and in
a crisscross pattern, working from the inner
caps out.
SDo not turn the camshaft when measuring the
camshaft journal-to-camshaft cap clearance
with the Plastigauge
.
Camshaft cap bolt
10 Nm (1.0 m
Skg, 7.2 ftSlb)
d. Remove the camshaft caps and then mea-
sure the width of the Plastigauge
1
.
5. Measure:
Scamshaft journal diameter
a
Out of specification
! Replace the cam-
shaft.
Within specification
! Replace the cylinder
head and the camshaft caps as a set.
Camshaft journal diameter
22.459
X 22.472 mm
(0.8842
X 0.8847 in)