Synchronizing The Throttle Valve - Yamaha F150B Service Manual

FUEL
7. Loosen the TPS screws d and adjust the
position of the TPS e to get the specified
output voltage.
c
a
b
O P B
B
P
O
B
a c
Test harness (3 pins) c: 90890-06793
TPS output voltage:
Pink (P)–Black (B)
0.66 V
TIP:
• To increase the output voltage, turn the
TPS e in direction b.
• To decrease the output voltage, turn the
TPS e in direction c.
8. Tighten the TPS screws d.
9. Operate the throttle valves several times
and make sure that the TPS output volt-
age is specification.
10. Slowly tighten the synchronizing screw
a and stop when the TPS output voltage
begins to change.
11. Slowly tighten the throttle stop screw b,
until the TPS output voltage is within
specification.
6-23
Fuel system
e
c
d
P O
e
TPS output voltage:
Pink (P)–Black (B)
0.70 ± 0.02 V
12. Operate the throttle valves several times
and make sure that the TPS output volt-
age is within specification.
13. Adjust the throttle link. See "Adjusting the
throttle link" (6-19).
14. Install the intake silencer. See "Intake
silencer" (6-16).

Synchronizing the throttle valve

Do not adjust the throttle valves when
they are operating properly.
1. Remove the caps a, and then connect
the special service tool b to the intake
manifold.
b
Vacuum gauge b: 90890-03159
a
b
a