Assembly And Installation - Yamaha TT-R125 Handbuch

CYLINDER HEAD
Warpage limit:
0.03 mm (0.0012 in)
If the warpage is out of specification,
G
resurface the cylinder head.
Place #400 ~ 600 grit wet sandpaper on
G
the surface plate, and re-surface the head
using a figure-eight sanding pattern.
NOTE:
Rotate the cylinder head several times to
avoid removing too much material from one
side.

ASSEMBLY AND INSTALLATION

Cylinder head
1. Install:
Dowel pin 1
G
Gasket 2
G
2. Install:
Cylinder head
G
Copper washer
G
Bolt (cylinder head)
G
NOTE:
Apply Quick
G
No.1215) on end of the cylinder head bolts
(M6), as shown.
Apply the engine oil on the contact surfaces of
G
the bolts (cylinder head) and copper washers.
Follow the numerical order shown in the illus-
G
tration. Tighten the bolts in two stages.
Quick gasket
ACC-QUICK-GS-KT
YAMAHA Bond No.1215:
90890-85505
4 - 16
ENG
New
M8 22 Nm (2.2 m · kg, 16 ft · lb)
M6 10 Nm (1.0 m · kg, 7.2 ft · lb)
®
gasket (YAMAHA
®
:
Bond