Yamaha F400A 2022 - Page 355

Camshaft
7-55
9. Install:
• Driven sprocket (PORT) “1”
• Driven sprocket (STBD) “2”
TIP:
Secure the camshaft using a wrench, and then
tighten the driven sprocket bolts “3” to the
specified torque.
10. Check:
• Camshaft positions
TIP:
• Check that the “ ” mark “a” on the driven
sprocket (PORT) is aligned with the “ ”
mark “b” on the cylinder head (PORT).
• Check that the “ ” mark “c” on the driven
sprocket (STBD) is aligned with the “ ”
mark “d” on the cylinder head (STBD).
11. Turn:
•Crankshaft
Do not turn the crankshaft clockwise more
than 45°. Otherwise, the pistons and valves
could collide with each other and be dam-
aged.
TIP:
Turn the crankshaft clockwise 45° gradually
until the “ ” mark “a” on the crankshaft is
aligned with the protrusion “b” on the cylinder
block.
T
R
.
.
Driven sprocket bolt “3”
60 N·m (6.0 kgf·m, 44 lb·ft)
a
4
PORT
4
a
STBD
1
2
3
b
a
c
d