Yamaha TT-R125(R) Owner's Service Manual page 246

CYLINDER HEAD
9. Check:
Valve clearance
G
Out of specification → Adjust.
Refer
INSPECTION
section in the CHAPTER 3.
10. Apply:
Engine oil
G
On camshaft.
11. Install:
Tappet cover 1
G
Cylinder head side cover 2
G
12. Install:
Timing mark accessing screw 1
G
Crankshaft end accessing screw 2
G
13. Install:
Spark plug
G
Engine bracket
G
4 - 19
ENG
to "VALVE CLEARANCE
AND ADJUSTMENT"
18 Nm (1.8 m · kg, 13 ft · lb)
10 Nm (1.0 m · kg, 7.2 ft · lb)
7 Nm (0.7 m · kg, 5.1 ft · lb)
7 Nm (0.7 m · kg, 5.1 ft · lb)
13 Nm (1.3 m · kg, 9.4 ft · lb)
40 Nm (4.0 m · kg, 29 ft · lb)