Yamaha FZ09E - Page 244

i
f' o..i a
2. Measure:
• Compressed valve spr
in g force "a"
Out
of specification 4 Replace the valve
spr
in g.
t
b. Insta ll ed length
In s talled compression spring
force (intake)
192.00-220.00 N (19. 58-22.43
kgf , 43.16-49.46 lbf )
Installed compression spring
force (exhaust)
162.00-186.00 N (16.5 2-18.97
kgf , 36.42-41.81 lbf)
Installed length (i nt ake)
32.90 mm (1.30 in )
Install ed length (exhaust)
32.00 mm (1.26 in)
3. Measure:
• Valve spring tilt "a"
Out
of specification 4 Replace the valve
spring.
Spr ing tilt (intake)
1. 7 mm (0.07 in )
Spring tilt (exhaust)
1.6 mm (0.06 in )
VALVES AND VALVE SPRINGS
---a
...... ,,.
CHECKING THE VALVE LIFTERS
The following procedure app
li es to all of the
valve
li fters.
1. Check:
• Valve
li fter
Damage/scratch
es 4 Replace the valve lift-
ers and cylinder head.
....,.,..
INSTALLING THE VALVES
The fo
ll owing procedure app li es to all of the
valves and related components.
1. Deburr:
• Valve stem end
(w i th an o il stone)
2. Lubricate:
• Valve stem
"1"
• Valve stem seal "2"
(w ith the recommended lu bricant)
Recommended
lubricant
1-~l Molybdenum disulfide oil
5-27