Yamaha 250GETO Service Manual page 128

POWR
12. Install the new gaskets r and the cylin-
der heads t, and then tighten the cylin-
der head bolts y to the specified torques
in two stages and in the sequence
shown.
r
å Block side
PORT
NOTE:
Apply engine oil to the cylinder head bolts y
before installation.
Cylinder head bolt y:
1st: 15 N·m (1.5 kgf·m, 11.1 ft·lb)
2nd: 30 N·m (3.0 kgf·m, 22.1 ft·lb)
5-41
Power unit
å
t
y
6S350350
STBD
6S350210
13. Install the thermoswitche u onto the
cylinder head i.
14. Install the new gaskets o and the cylin-
der head covers p, and then tighten the
cylinder head cover bolts a to the speci-
fied torques in two stages and in the
sequence shown.
o
PORT
i
u
6G450780
p
a
6S350360
STBD
6S350180
6S35H11