Control System; Checking And Adjusting The Throttle Body Pickup Timing - Yamaha F115A Service Manual

INSP
ADJ
1
a
5
b
a
4

CONTROL SYSTEM

3100
2
1
3
3110
CONTROL SYSTEM
CHECKING AND ADJUSTING THE
THROTTLE BODY PICKUP TIMING
1. Check:
• Throttle body pickup timing
Incorrect → Adjust.
Checking steps
(1) Turn the throttle control lever to the
full retard position.
(2) Check that the mark a on the throttle
cam aligns with the center of the throt-
tle roller 1 as shown.
2. Adjust:
• Throttle body pickup timing
Adjustment steps
(1) Loosen the nut 1 .
(2) Remove the throttle joint link rod 2.
(3) Move the throttle control lever 3 until
it contacts the fully-closed stopper 4 .
NOTE:
c
Make sure the throttle is fully-closed.
(4) Align the fully-closed mark a on the
throttle control lever 3 with the center
of the throttle roller 5 as shown.
(5) Adjust the length of the throttle joint
link rod until b is 0.5 mm.
(6) Tighten the nut and install the throttle
joint link rod onto the throttle control
lever.
(7) Move the throttle control lever to
check that the throttle valve opens and
closes smoothly. Also, make sure the
throttle roller aligns with the fully-
open position c on the accelerator
cam.
(8) Set the throttle to the fully-closed posi-
tion and check that the fully-closed
mark a aligns with the center of the
throttle roller.
3-4
E
3
3