Yamaha TT-R125(S) 2003, Owner'S Service Manual

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4 - 18
ENG
CYLINDER HEAD
5. Install:
●
Timing chain tensioner
6. Turn:
●
Crankshaft
Counterclockwise several turns
7. Check:
●
Rotor “I” mark
Align with the crankcase stationary
pointer.
●
Camshaft match mark
Align with the cylinder head stationary
pointer.
Out of alignment
→
Adjust.
Installation steps:
●
While pressing the tensioner rod lightly
with fingers, use a thin screwdriver and
wind the tensioner rod up fully clockwise.
●
With the rod fully wound, install the gasket
1 and the chain tensioner 2 , and tighten
the bolts 3 to the specified torque.
T
R
.
.
Bolt (chain tensioner):
10 Nm (1.0 m • kg, 7.2 ft • lb)
●
Release the screwdriver, check the ten-
sioner rod to come out and tighten the
gasket
4 and the cap bolt 5 to the speci-
fied torque.
T
R
.
.
Cap bolt (timing chain tensioner):
8 Nm (0.8 m • kg, 5.8 ft • lb)
8. Tighten:
●
Bolt 1
NOTE:
Tighten the bolt while holding the rotor nut with
a wrench.
T
R .
.
20 Nm (2.0 m · kg, 14 ft · lb)