60C5D11
8-2
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Checking the electrical
components
8
Measuring the peak voltage
NOTE:
Before troubleshooting the peak voltage,
check that all electrical connections are tight
and free from corrosion, and that the battery
is fully charged to 12 V.
The condition of the ignition system can be
determined by measuring the peak voltage.
Cranking speed is effected by many factors,
such as fouled or weak spark plugs, or a
weak battery. If one of these factors is
present, the peak voltage will be lower than
specification. In addition, if the peak voltage
is lower than specification the engine will not
operate properly.
WARNING
When checking the peak voltage, do not
touch any of the connections of the digital
tester leads.
NOTE:
• Use the peak voltage adaptor with the digi-
tal circuit tester.
• When measuring the peak voltage, set the
selector on the digital circuit tester to the
DC voltage mode
.
• Connect the positive pin on the peak volt-
age adaptor to the positive terminal of the
digital circuit tester.
Measuring the lower resistance
When measuring a resistance of 10
Ω
or less
with the digital circuit tester, the correct mea-
surement cannot be obtained because of the
internal resistance of the tester. To obtain the
correct value, subtract the internal resistance
from the displayed measurement.
NOTE:
Obtain the internal resistance of the digital
circuit tester by connecting both of its probes
and checking the display.
DC V
S60C8010
Correct value =
displayed measurement – internal
resistance
Special service tools / Checking the electrical components
Summary of Contents for F100B
Page 1: ...SERVICE MANUAL 60C 28197 5D 11 290429 F100B F100C ...
Page 52: ...SPEC Specifications 2 17 60C5D11 MEMO ...
Page 162: ...LOWR Lower unit 6 15 60C5D11 Drive shaft and lower case F100B 6 ...
Page 190: ...LOWR Lower unit 6 43 60C5D11 Drive shaft and lower case F100C 6 ...
Page 200: ...LOWR Lower unit 6 53 60C5D11 Shimming F100C 6 ...
Page 209: ...60C5D11 7 2 1 2 3 4 5 6 7 8 9 MEMO Special service tools ...
Page 210: ...BRKT Bracket unit 7 3 60C5D11 Tiller handle 7 ...
Page 212: ...BRKT Bracket unit 7 5 60C5D11 ...
Page 214: ...BRKT Bracket unit 7 7 60C5D11 ...
Page 244: ...BRKT Bracket unit 7 37 60C5D11 Gear pump F100B 7 ...
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Page 343: ......
Page 344: ...YAMAHA MOTOR CO LTD Printed in the Netherlands Jun 2001 0 5 1 CR F100BET F100CET E ...