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Yamaha F100B Service Manual

Yamaha F100B
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Checking the ignition spark gap
1. Remove the cover and disconnect the
spark plug caps from the spark plugs.
2. Connect a spark plug cap to the special
service tool.
3. Set the spark gap length on the adjusting
knob.
4. Crank the engine and observe the spark
through the discharge window of the
spark gap tester. Check the ignition coil if
out of specification.
WARNING
• Do not touch any of the connections of
the spark gap tester leads.
• Do not let sparks leak out of the
removed spark plug caps.
• Keep flammable gas or liquids away,
since this test can produce sparks.
Checking the high-tension cords
1. Remove the high-tension cords from the
ignition coil.
2. Measure the high-tension cord resis-
tance. Replace if out of specification.
Ignition tester: 90890-06754
Ignition spark gap: 11 mm (0.4 in)
S60C8070
S60C8090
OK
High-tension cord resistance:
#1: 4.5–10.7 k
Ω
#2: 3.3–8.0 k
Ω
#3: 3.7–8.9 k
Ω
#4: 4.3–10.2 k
Ω
S60C8100
Ignition system and ignition control system

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Yamaha F100B Specifications

General IconGeneral
BrandYamaha
ModelF100B
CategoryOutboard Motor
LanguageEnglish

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