Inspection - Suzuki GSF650S Service Manual

6-32 ELECTRICAL SYSTEM

INSPECTION

IGNITION COIL PRIMARY PEAK VOLTAGE
• Remove the fuel tank. (!4-3)
• Disconnect all the spark plug caps.
• Connect four new spark plugs to each spark plug cap and
ground them on the cylinder.
NOTE:
Be sure that all the spark plugs are connected properly and the
battery used is in fully-charged condition.
Measure ignition coil primary peak voltage (for #1 and #4 cylin-
ders) in the following procedure.
• Connect the multi circuit tester with the peak voltage adaptor
as follows.
Ignition coil (for #1 and #4 cylinders):
W terminal –
(+ Probe)
NOTE:
Do not disconnect the ignition coil primary lead wire.
" 09900-25008: Multi circuit tester set
#
Before using the multi circuit tester and peak voltage
adaptor, refer to the appropriate instruction manual.
• Shift the transmission into neutral, turn the ignition switch to
the "ON" position and grasp the clutch lever.
• Press the starter button and allow the engine to crank for a
few seconds, and then measure the ignition coil primary peak
voltage.
• Repeat the above procedure a few times and measure the
highest ignition coil primary peak voltage.
$ Ignition coil primary peak voltage: 140 V and more
' Tester knob indication: Voltage (&)
1
Do not touch the tester probes and spark plugs to pre-
vent an electric shock while testing.
Ground
(- Probe)
Peak volt adaptor
Ignition coil
Ignitor
New spark plugs
Battery