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Yamaha 20C Service Manual

Yamaha 20C
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E
3-14
PERIODIC SERVICE
GEN
SRVC
D35300-0
START-IN-GEAR PROTECTION ADJUSTMENT
1) Shift into neutral.
2) Adjust the wire adjusting-bolt so that the end of
the starter stop-plunger aligns with the centre
of the hole in the starter case.
D35603-0
THROTTLE CONTROL LINK ADJUSTMENT
1) When the gear shift lever is set to Forward,
make sure that the accelerator cam and the
guide collar are positioned as shown.
2) Then, adjust the accelerator control link length
to specification.
D35000-0*
SPARK PLUG
1. Check the electrode condition and state of
wear, note that the insulator colour and the
electrode gap.
2. Clean the spark plug with spark-plug cleaner if
necessary. Use a wire gauge to adjust the plug
gap to specification.
3. If the electrode becomes too worn, replace the
spark plug.
4. When installing the plug, clean the gasket sur-
face, wipe off any grime there may be on the
surface of the spark plug, and screw in the
spark plug to the correct torque
Standard spark plugs:
NGK B7HS
NGK BR7HS For CHINA (Factory option)
Tightening torque:
28 Nm (2.8 m·kg, 20 ft·lb)
Spark plug gap:
0.6 – 0.7 mm (0.024 – 0.028)
Link length:
69 mm (2.72 in)
6A9-7-5F-B1-3 7/25/03 10:44 AM Page 32

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Yamaha 20C Specifications

General IconGeneral
BrandYamaha
Model20C
CategoryOutboard Motor
LanguageEnglish

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