Yamaha F100A, Service Manual

Page: 400 / 463

8-7
– +
ELEC
E
ELECTRICAL ANALYSIS
●
When measuring the peak voltage, con-
nect the peak voltage adaptor to the digi-
tal tester and switch the selector to the
DC voltage mode.
NOTE:
●
Make sure that the adaptor leads are
properly installed in the digital circuit
tester.
●
Make sure that the positive pin (the “+”
mark facing up as shown) on the adaptor
is installed into the positive terminal of
the tester.
●
The test harness is needed for the follow-
ing tests.
Å
Voltage measurement
ı
Peak voltage measurement
Å
ı
Test harness
YB- 90890- Pin Usage
1 06443 06757 3 Throttle position
sensor (TPS)
2 38832 06772 6 Pick-up coil
3 06770 06770 3 Charge coil
Checking steps:
●
Disconnect the coupler connections.
●
Connect the test harness between the
couplers.
●
Connect the tester terminals to the ter-
minals which are being checked.
●
Run the engine and observe the mea-
surement.
2 1 3