Yamaha F225F Service Manual page 344

POWR
2. Install the valve b, valve spring seat c,
valve spring d, and valve spring retainer
e in this order, and then install the
special service tools f and g.
e
d
c
e
d
c
b
b
Valve spring compressor f: 90890-04019
Valve spring compressor attachment g:
90890-06320
3. Compress the valve spring, and then
install the valve cotters h.
h
7-61
Power unit
a
f
g
4. Tap the valve spring retainer lightly using
a plastic hammer to seat the valve
cotters h securely.
h
5. Install the cam position sensors i and
anode assemblies j.
6. Install the exhaust plug k and braided
plug l, and then tighten them to the
specified torque.
j
l
i
Exhaust plug k:
56 N·m (5.6 kgf·m, 41.3 ft·lb)
Braided plug l:
23 N·m (2.3 kgf·m, 17.0 ft·lb)
h
k
j