7-21
E
–
+
ELEC
IGNITION SYSTEM
ATMOSPHERIC PRESSURE SENSOR
1. Measure:
• Atmospheric pressure sensor output
voltage
Out of specification
→
Replace.
È
: Output voltage
É
: Vacuum pressure
NOTE:
While the Yamaha Diagnostic System is oper-
ating, electric power is supplied to the atmo-
spheric pressure sensor.
Air pressure sensor tester
(3 pins):
YB-06869
Test harness EJ-II-3 (3 pins):
90890-06869
Lower unit pressure/vacuum
tester:
YB-35956-A
Vacuum/pressure pump gauge
set:
90890-06756
Atmospheric pressure sensor
output voltage:
Pink/green (P/G) –
Black/orange (B/O)
1
101.3 kPa
(1.01 kgf/cm
2
, 14.4 psi):
a
4.00 V
2
50 kPa
(0.5 kgf/cm
2
, 7.1 psi):
b
1.97 V
3
20 kPa
(0.2 kgf/cm
2
, 2.8 psi):
c
0.79 V
Measurement steps:
• Disconnect the atmospheric pressure
sensor.
• Connect the test harness (3 pins) to the
atmospheric pressure sensor.
• Operate the Yamaha Diagnostic System.
• Apply vacuum pressure to the atmo-
spheric pressure sensor and measure
the output voltage.
B
/
O
P
/
G
È
a
b
c
3
2
1
É
Summary of Contents for WaveRunner GP1300R
Page 1: ...SUPPLEMENTARY SERVICE MANUAL GP1300R WaveRunner F1G 28197 1G 1X LIT 18616 02 90 LIT186160290...
Page 10: ...E TROUBLE ANALYSIS TROUBLE ANALYSIS 48 SELF DIAGNOSIS 48 WIRING DIAGRAM...
Page 61: ...YAMAHA MOTOR CORPORATION USA Printed in USA Dec 2004 0 0 1 CR E...
Page 62: ...SERVICE MANUAL GP1300R WaveRunner F1G 28197 1F 11 LIT 18616 02 44 LIT186160244...
Page 340: ...YAMAHA MOTOR CORPORATION USA Printed in USA Feb 2003 0 0 1 CR E...