Yamaha WaveRunner FX Cruiser SHO, Service Manual

Page: 307 / 433

E
ELEC
– +
1
2
3
4
5
6
7
8
9
7-30
5. Operate the throttle lever
1
, and then
check the TPS 2 output voltage and throt-
tle valve opening angle at the fully open
position
É
.
NOTE:
The actual TPS output voltage and throttle
valve opening angle may vary according to
environmental conditions and engine tempera-
ture.
6. Operate the throttle lever
1
so that the
TPS 2 output voltage is at 4.5 V or less,
and then check the voltage difference
between TPS 1 and TPS 2.
Example:
If the TPS 1 output voltage is 2.5 V and the
TPS 2 output voltage is 4.5 V, then 4.5
–
2.5 = 2.0 V.
2. Measure:
• TPS input voltage
Out of specification
→
Check the TPS
circuit.
Measurement steps:
1. Disconnect the throttle body assembly
coupler
1
.
2. Push the unlock button, and then measure
the input voltage at the throttle body
assembly coupler terminals (wiring har-
ness end).
TPS 2 output voltage with throttle
lever fully open:
4.6 – 4.7 V
Throttle valve opening angle with
throttle lever fully open:
more than 70 °
TPS output voltage difference:
1.9 – 2.1 V
TPS input voltage (reference data):
Orange (O) – Black/orange (B/O)
4.75 – 5.25 V
1
O
B/O
Control system