Yamaha R1 Series 2015, Руководство по обслуживанию

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CAMSHAFTS
5-17
2. Check:
•
Camshaft sprocket
More than 1/4 tooth wear “a”
o
Replace the
camshaft sprockets and the timing chain as a
set.
EAS30265
CHECKING THE TIMING CHAIN GUIDES
The following procedure applies to all of the
camshaft sprockets and timing chain guides.
1. Check:
• Timing chain guide (exhaust side) “1”
•
Timing chain guide (intake side) “2”
• Timing chain guide (top side) “3”
Damage/wear
o
Replace the defective
part(s).
EAS30266
CHECKING THE TIMING CHAIN TENSIONER
1. Check:
•
Timing chain tensioner
Cracks/damage/rough movement
o
Re-
place.
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a. Using the valve spring compressor “1”, push
and insert timing chain tensioner rod “2” into
the timing chain tensioner housing.
TIP
Push the timing chain tensioner rod in direction
“a”, and turn the timing chain tensioner body “3”
in direction “b” until it stops.
b. Keep pressing the timing chain tensioner rod,
mount clip “4” into groove “5”, and lock the
timing chain tensioner rod.
c. Push the timing chain tensioner rod in direc-
tion “c”.
d. Make sure that the timing chain tensioner rod
can smoothly move out from the timing chain
tensioner housing in direction “d”. If not
smooth, replace the timing chain tensioner
assembly.
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a. 1/4 tooth
b. Correct
1. Timing chain
2. Camshaft sprocket
1
2
3
Valve spring compressor
90890-04019
Valve spring compressor
YM-04019
2
3
1
1
a
b
5
4
c
d