Yamaha YBR125ED 2005 Service Manual page 190

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CYLINDER HEAD
6. Install:
• timing chain tensioner
M MMM M MMM M M MMM
a. While lightly pressing the timing chain ten-
sioner rod by hand, turn the tensioner rod
fully clockwise with a thin screwdriver 1.
NOTE:
Make sure that the tensioner rod has been fully
set clockwise.
b. Install the gasket and the timing chain ten-
sioner 2 onto the cylinder.
WARNING
Always use a new gasket.
Timing chain tensioner bolt
10 Nm (1.0 m · kg, 7.2 ft · lb)
c. Turn the timing chain tensioner rod counter-
clockwise with a thin screwdriver 1, make
sure it releases, and then tighten the cap
bolt to specification.
Timing chain tensioner cap bolt
8 Nm (0.8 m · kg, 5.8 ft · lb)
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7. Turn:
• crankshaft
(several turns counterclockwise)
8. Check:
• "I" mark a
NOTE:
Check that the "I" mark on the A.C. magneto
rotor is aligned with the stationary pointer b
on the A.C. magneto rotor cover.
• "I" mark c
NOTE:
Check that the "I" mark on the camshaft
sprocket is aligned with the stationary pointer
d on the cylinder head.
Out of alignment → Correct.
Repeat steps 4-7, if necessary.
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ENG
M M MMM M M MMM M
L L LLL L L LLL L
M MMM M MMM
L LLL L LLL