Yamaha WaveRunner GP1300R, Service Manual

Page: 392 / 577

7-20
E
– +
ELEC
IGNITION SYSTEM
MAIN AND FUEL PUMP RELAY
1. Check:
• Main and fuel pump relay continuity
Out of specification
→
Replace.
Checking steps:
• Connect the tester leads between main
and fuel pump relay terminals
5
,
6
, and
7
.
• Connect terminal
2
or
3
to the positive
battery terminal.
• Connect terminal
1
to the negative bat-
tery terminal.
• Check that there is continuity between
the main and fuel pump relay terminals.
• Check that there is no continuity between
the main and fuel pump relay terminals
after disconnecting terminal
1
,
2
, or
3
.
• Connect the tester leads between main
and fuel pump relay terminals
6
and
8
.
• Connect terminal
7
to the positive bat-
tery terminal.
• Connect terminal
4
to the negative bat-
tery terminal.
• Check that there is continuity between
the main and fuel pump relay terminals.
• Check that there is no continuity between
the main and fuel pump relay terminals
after disconnecting terminal
4
or
7
.
1234
5678
+ –
8
4
5
1
3
2
7
6
+ –
8
4
5
1
3
2
7
6
THROTTLE POSITION SENSOR
1. Measure:
• Check the throttle position sensor output
voltage using the Yamaha Diagnostic
System.
Out of specification
→
Replace the
throttle bodies.
Throttle position sensor output
voltage:
Pink (P) – Black/orange (B/O)
0.793–0.807 V