Installing The Thermostat - Yamaha 25BMH Wartungshandbuch

POWR
CYLINDER HEAD
INSTALLING THE CYLINDER HEAD
AND CYLINDER HEAD COVER
Install:
• Cylinder head
1
cover
NOTE:
• Temporarily assemble; cylinder head
1
cover , cylinder head cover gasket
cylinder head
4
gasket in that order, and then install
the assembled parts onto the crank-
case.
• Apply LOCTITE
• Tighten the cylinder head mounting
bolts and nut in sequence and in two
steps of torque.
Cylinder head mounting bolts
1st: 15 N
2nd:30 N

INSTALLING THE THERMOSTAT

Install:
• Thermostat
• Plain washer
• Gasket
• Thermostat cover
5
• Bolt
NOTE:
• Always use the new gasket.
• Tighten the bolts in sequence.
Thermostat cover bolts
8 N m (0.8 kgf
•
5-24
3
and cylinder head
3
, and cylinder head
®
No.572 on the bolts.
m (1.5 kgf m, 11 ft
• •
m (3.0 kgf m, 22 ft
• •
1
2
3
4
m, 5.9 ft lb)
• •
E
2
,
lb)
•
lb)
•