Yamaha F90D, Service Manual

Page: 91 / 241

POWR
Power unit
5-25
6D81G11
5
No. Part name Q’ty Remarks
18 Valve lifter 16
19 Valve cotter 32
20 Valve spring retainer 16
21 Valve spring 16
22 Valve spring seat 16
23 Valve seal 16
Not reusable
24 Valve guide 16
Not reusable
S6D85080
1
4
7
8
9
5
6
3
13
14
22
20
18
17
19
21
23
24
24
16
15
12
11
10
2
23
22
21
20
19
18
17
E
E
E
E
E
E
LT
271
AA
T
R
.
.
25 N
•
m (2.5 kgf
•
m, 18.4 ft
•
Ib)
T
R
.
.
1
15 N
•
m (1.5 kgf
•
m, 11.1 ft
•
lb)
2
30 N
•
m (3.0 kgf
•
m, 22.1 ft
•
lb)
3
90˚
T
R
.
.
1
14 N
·
m (1.4 kgf
·
m, 10.3 ft
·
lb)
2
28 N
·
m (2.8 kgf
·
m, 20.7 ft
·
lb)
E
E