Checking The Timing Chain Guide; Checking The Timing Chain Tensioner; Installing The Cylinder Head - Yamaha MIO Service Manual

3
New
1
CYLINDER HEAD

CHECKING THE TIMING CHAIN GUIDE

1. Check:
• timing chain guide (exhaust side)
EAS00210
CHECKING THE TIMING CHAIN
TENSIONER
1. Check:
1
• timing chain tensioner
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a. Remove the plug cap.
b. While lightly pressing the timing chain ten-
c. Remove the screwdriver and slowly release
d. Make sure that the timing chain tensioner
e. Install the plug cap.
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2. Check:
• one-way cam
• timing chain tensioner rod
EAS00231

INSTALLING THE CYLINDER HEAD

2
For installation, reverse the removal proce-
dure.
1. Install:
• timing chain guide (exhaust side) 1
• dowel pins 2
• gasket 3
2. Install:
• cylinder head
4 - 12
Damage/wear → Replace.
Cracks/damage → Replace.
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sioner rod by hand, turn the tensioner rod
fully clockwise with a thin screwdriver 1.
the timing chain tensioner rod.
rod comes out of the timing chain tensioner
housing smoothly. If there is rough move-
ment, replace the timing chain tensioner.
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Damage/wear → Replace the defective
part(s).
New
ENG
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