Yamaha F80B Service Manual page 38

CHK
ADJ
3. Loosen the locknut 1, remove the clip
2, and then disconnect the throttle cable
joint 3.
4. Loosen the locknut 4, and then discon-
nect the throttle link rod joint 5 from the
ball joint of the throttle body.
5
4
5. Check that the stopper 6 on the throttle
cam contacts the fully closed stopper 7
on the cylinder block.
7
6
6. Check that the throttle valve fully close.
NOTE:
Do not turn the throttle stop screw.
7. Push the throttle link rod 8 toward the
cylinder head and check that the throttle
cam roller 9 contacts the side a of the
throttle cam.
3-9
Periodic checks and adjustments
2
1 3
S6D83090
S6D83100
8
8. Adjust the throttle link rod joint to align its
hole with the ball joint 0 on the throttle
body.
0
9. Connect the throttle link rod joint, and
then tighten the locknut.
10. Operate the throttle cam to check that
the throttle valve fully closes and fully
opens, and check that the gap b
between the stopper A on the throttle
lever and fully open stopper B on the
throttle body is less than 5 mm (0.20 in)
when the throttle cam is in the fully open
position.
B
A
b
11. Adjust the position of the throttle cable
joint until its hole is aligned with the set
pin on the throttle cam.
a
9
S6D83110
S6D83120
S6D83130
6D93G11