Ignition System; Ignition Coil - Yamaha WaveRunner FX SHO Service Manual

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Electrical analysis / Ignition system
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NOTE:
• Before measuring the peak voltage, check all
wiring for proper connection and corrosion,
and check that the battery is fully charged.
• Use the peak voltage adapter with the rec-
ommended digital circuit tester.
• Connect the positive pin of the peak voltage
adapter to the positive terminal of the digital
tester, and the negative pin to the negative
terminal.
• When measuring the peak voltage, set the
selector on the digital circuit tester to the DC
voltage mode.
Digital multimeter 1:
YU-34899-A
Peak voltage adapter 2:
YU-39991
Digital circuit tester 3:
90890-03174
Peak voltage adapter B 4:
90890-03172
È For USA and Canada
É For worldwide

Ignition system

Ignition coil

1. Check:
• Ignition spark
No spark → Measure the ignition coil
input voltage.
Checking steps:
1. Connect a computer to the watercraft and
use the YDIS.
2. Remove the ignition coil for the cylinder
that will be tested.
3. Connect the ignition coil to the special ser-
vice tool 1.
Spark checker:
YM-34487
Ignition tester:
90890-06754
7-11
E