Yamaha Waverunner VXS VX1800, Service Manual

Page: 239 / 318

Starting system
7-32
3. Measure the input voltage between the ter-
minal “a” and ground.
4. Supply power to the ECM, and then mea-
sure the input voltage between the termi-
nals “a” and “b”.
5. Install the main relay and fuse box cover.
Starter relay check
1. Slide the boot away from the starter relay
terminal “1”, and then measure the input
voltage between the starter relay terminal
“1” and ground.
TIP:
The positive battery lead is marked with yel-
lowish green tape “a”.
2. Remove the starter relay.
3. Connect the tester leads between the
starter relay terminals “a” and “b”.
4. Connect the positive battery lead to the
terminal “c”, and the negative battery lead
to the terminal “d”.
5. Check the continuity between the starter
relay terminals “a” and “b”. Replace the
starter relay if out of specification.
Relay terminals continuity
Terminal “c”–Terminal “d”
Input voltage
12 V (battery voltage)
Terminal “a”–Ground
Input voltage
12 V (battery voltage)
Terminal “a”–Terminal “b”
a
b
d
c
a
a
b
Starter relay input voltage
12 V (battery voltage)
Red (R)–Ground
Starter relay continuity
Battery lead “c”–“d” Terminal “a”–“b”
Disconnected No continuity
R
1
a
c
a
d
b