Suzuki 2005 GSF1200 Service Manual page 198

1H-5 Ignition System:
4) Connect the multi-circuit tester with the peak voltage
adaptor as follows.
CAUTION
!
Before using the multi-circuit tester and peak
voltage adaptor, refer to the appropriate
instruction manual.
NOTE
Do not disconnect the ignition coil primary
lead wire.
Special tool
(A): 09900–25008 (Multi-circuit tester set)
Tester knob indication: Voltage (
Ignition coil (For #1
and #4 cylinders):
Ignition coil (For #2
and #3 cylinders):
(A)
"A", "B"
1
1. Ignitor
2. Peak voltage adaptor
3. Battery
4. New spark plug
"A"
)
((+) Probe) ((–) Probe)
W terminal "A" Ground
B/Y terminal "B" Ground
2
5
4
3
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5. Ignition coil
"A": W terminal (For #1, #4)
"B": B/Y terminal (For #2, #3)
"B"
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5) Measure the ignition coil primary peak voltage in the
following procedure.
a) Shift the transmission into neutral, turn the
ignition switch to the "ON" position and grasp the
clutch lever.
b) Press the starter button and allow the engine to
crank for a few seconds, and then measure the
ignition coil primary peak voltage.
WARNING
!
Do not touch the tester probes and spark
plugs to prevent an electric shock while
testing.
6) Repeat the above procedure a few times and
measure the highest ignition coil primary peak
voltage.
If the voltages are lower than standard values,
inspect the ignition coil and the CKP sensor.
Ignition coil primary peak voltage
140 V and more
7) After measuring the ignition coil primary peak
voltage, reinstall the removed parts.
Ignition Coil Resistance
1) Remove the fuel tank. Refer to "Fuel Tank Removal
and Installation: in Section 1G".
2) Disconnect all the spark plug caps.
3) Disconnect all the ignition coil lead wires.
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