Yamaha FZ09E - Checking the Timing Chain Guides; Checking the Timing Chain Tensioner

TIP ~~~~~~~~~~~~~~-
• Tighten the camsha ft cap bolts in stages and in
a crisscross patte
rn , worki ng from the inn er
caps ou t.
•
Do not tum the camshaft when measuring the
camshaft journal-to-camshaft cap clearance
with
th e Plastigauge®.
Camshaft cap bolt
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
d. Remove the camshaft caps and th en mea-
sure the width of t
he Plastigauge® "2".
2
••••••••••••••••••••••••••••••••
5. Measure:
• Camshaft journal diameter "a"
Out
of specifica ti on ~ Replace the camshaft.
Within specification
~ Replace the cy li nder
head and t
he camshaft caps as a set.
"'""""'
Camshaft journal diameter
24.459-24.472 mm
(0.9630-0.9635 in)
a
0 ---
CHECKING THE TIMING CHAIN AND
CAMSHAFT SPROCKET
1. Ch ec k:
• Timing cha in
Damage/stiffness
~ Replace t he t im ing
cha in and camshaft and camshaft sprocket
as a set.
CAMSHAFTS
2. Check:
• Camshaft sprocket
More than 1
/4 tooth we ar "a" ~ Replace the
camshaft sprockets and the timing cha
in as a
set.
a
' '
b -.; ·
•
•
•
a. 1/4 tooth
b. Co rr ec t
1. Ti
ming cha in
2. Camshaft
sprocke t
.....,...
1
,.
•
2
•
'
•
'
CHECKING THE TIMING CHAIN GUIDES
The fo ll owing procedure app li es to all of the
camshaft sprockets and timing chain guides.
1. Check:
• Timing cha
in guide ( in take side) "1"
• Timing chain gu
id e (t op side) "2''
Damage/wear ~ Replace the defective
part(s).
2
1
....,,. ,.
CHECKING THE TIMING CHAIN TENSIONER
1. Check:
• Timing chain tensioner
Cracks/damage/rough movement
~ Re-
place .
••••••••••••••••••••••••••••••••
a. Lightly press the timing chain tensioner rod
into
th e timing cha in tensioner housing by
ha nd.
TIP ~~~~~~~~~~~~~~-
Whi le pressing the timing chain tension er r od,
wind it counterclockwise with a hexagon wrench
"1 " unt il it stops.
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