Suzuki RM-z450 Owner's Service Manual page 258

15-15 ELECTRICAL SYSTEM
CKP SENSOR AND CRANKSHAFT ROTATION
SIGNAL SENSOR PEAK VOLTAGE
• Disconnect the magneto lead wire coupler 1.
• Connect the multi-circuit tester with the peak volt adaptor as
follows.
.
CKP sensor
+ probe
Red
- probe
Green
" 09900-25008: multi-circuit tester set
• Measure the highest peak voltage by depressing the kick
starter lever several times forcefully.
When using the multi-circuit tester and peak volt
adaptor, refer to the appropriate instruction manual.
• Repeat the above procedure a few times and measure the
highest sensor peak voltage.
# CKP sensor peak voltage: 2.8 V and more
Crankshaft rotation signal sensor peak voltage:
$ Tester knob indication: Voltage (%)
If the peak voltage is within the specification, check the continu-
ity between the magneto lead wire coupler and ECM coupler.
Normally, use the needle pointed probe to the back-
side of the lead wire coupler to prevent the terminal
bend and terminal alignment.
Crankshaft rotation signal sensor
B/R
R/W
CAUTION
1.7 V and more
CAUTION
R/W
G
Bl B/W G/W
B
ECM coupler (Harness side)
B/R
R