Yamaha F400A 2022 - Page 354

7-54
Camshaft
b. Install the camshaft caps “1”, “2”, and
“3” in their proper positions so that the
stamped numbers are upside down,
and then install the camshaft cap bolts
“4” and “5” temporarily.
c. Tighten the camshaft cap bolts “1” and
“2” to the specified torques in 2 stages
and in the order [1], [2], and so on.
7. Tighten:
•VCT bolts
When loosening or tightening the VCT bolt,
do not secure the VCT assembly. Other-
wise, the VCT assembly could be damaged.
TIP:
Secure the camshaft using a wrench, and then
tighten the VCT bolt “1” to the specified
torque.
8. Install:
• Cam chain tensioner (PORT) “1”
• Cam chain tensioner (STBD) “2”
TIP:
• Use plastic ties “3” to hold the cam chain
tensioners in the retracted position. Remove
the plastic ties “3” after installing the cam
chain tensioners.
• Make sure that the cam chain “4” is properly
positioned on the guide surface “a” of the
cam chain tensioner.
T
R
.
.
Camshaft cap bolt “1”, “2”
1st: 8 N·m (0.8 kgf·m, 5.9 lb·ft)
2nd: 17 N·m (1.7 kgf·m, 13 lb·ft)
EE EE
PORT STBD
1P
2
2P
3P
4P
8S
7S
6S
9S
10S
11S
5P
7P
6P
8P
9P
10P
11P
4 5
1S
2S
3S
4S
5S
2
4
3
4
5
1
3
4
5
1
4
[1][1]
[5][5]
[4][4]
[6][6]
[3][3]
[2][2]
[4][4]
[3][3]
[5][5]
[2][2]
[1][1]
[1][1]
[5][5]
[4][4]
[6][6]
[3][3]
[2][2]
[4][4]
[3][3]
[5][5]
[2][2]
[1][1]
[6][6]
[2][2]
[3][3]
[1][1]
[4][4]
[5][5]
[2][2]
[3][3]
[1][1]
[4][4]
[5][5]
[6][6]
[2][2]
[3][3]
[1][1]
[4][4]
[5][5]
[2][2]
[3][3]
[1][1]
[4][4]
[5][5]
2
2
2
2
PORT STBD
1
1
T
R
.
.
VCT bolt “1”
60 N·m (6.0 kgf·m, 44 lb·ft)
1
3
2
3
1