Yamaha YZF-R1S Service Manual - Eng
Other manuals for YZF-R1S:
Owner's Manual, Owner's Manual
Manual is about: YZF-R1S; YZF-R1SC Motorcycle
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457
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CAMSHAFT
ENG
NOTE:
6. Remove:
Sintake camshaft
1
Sexhaust camshaft
2
To prevent the timing chain from falling into the
crankcase, fasten it with a wire
3
.
7. Remove:
Scamshaft sprockets
EAS00204
CHECKING THE CAMSHAFTS
1. Check:
Scamshaft lobes
Blue discoloration / pitting / scratches
! Re-
place the camshaft.
2. Measure:
Scamshaft lobe dimensions
a
and
b
Out of specification
! Replace the cam-
shaft.
Camshaft lobe dimension limit
Intake camshaft
a
32.85
X 32.95 mm
(1.293
X 1.297 in)
b
25.14
X 25.24 mm
(0.990
X 0.994 in)
Exhaust camshaft
a
30.75
X 30.85 mm
(1.211
X 1.215 in)
b
23.09
X 23.19 mm
(0.909
X 0.913 in)