Yamaha TT-R125 Manuel D'atelier Du Proprietaire page 294

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