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EJU00552a
Cleaning and adjusting the
spark plugs
The spark plug is an important engine
component and is easy to inspect. The con-
dition of the spark plug can indicate some-
thing about the condition of the engine. For
example, if the center electrode porcelain is
very white, this could indicate an intake air
leak or carburetion problem in that cylinder.
Do not attempt to diagnose any problems
yourself. Have a Yamaha dealer service the
watercraft.
Remove and inspect the spark plug peri-
odically; heat and deposits will cause the
spark plug to slowly break down and erode.
If electrode erosion becomes excessive, or if
carbon and other deposits are excessive,
replace the spark plug with the specified
plug.
Measure the spark plug gap
a
with a
wire thickness gauge before installing the
spark plug. Adjust the gap to specification if
necessary.
To reinstall spark plug:
1. Clean the gasket surface.
2. Wipe any dirt from the threads of the
spark plug.
3. Screw the spark plug to the correct
torque.
Standard spark plug: BR8ES-11
Spark plug gap:
1.0–1.1 mm (0.039–0.043 in)
Spark plug torque:
25 N·m (2.5 kgf·m, 18 ft·lb)
Содержание GP1200R WaveRunner 2001
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Страница 8: ...1 3 E EJU00293 Important labels Label location ...
Страница 9: ...1 4 E Warning labels 1 2 3 4 5 ...
Страница 10: ...1 5 E 6 7 8 9 0 A ...
Страница 11: ...1 6 E Caution labels B C D E F G H ...
Страница 12: ...1 7 E Other labels I J K L ...
Страница 26: ...E MEMO ...
Страница 118: ...E MEMO ...
Страница 119: ...E 6 EJU00608 APPENDIX Limited warranty 6 1 YAMAHA EXTENDED SERVICE Y E S 6 3 Index 6 4 ...
Страница 126: ...Printed in USA August 2000 2 4 1 CR F0X F8199 11 GP1200A Z Printed on recycled paper YAMAHA MOTOR CORPORATION USA ...