8-4
ESU00376
Tool kit
The owner’s tool kit has the tools which are sufficient for
most periodic maintenance and minor repair. A torque
wrench is also necessary to properly tighten nuts and
bolts.
1
Tool kit
CAUTION:
@
Before starting the engine, make sure that the tool
kit is firmly seated in the holder and is closed
securely.
@
NOTE:
@
If you do not have a torque wrench available during a
service operation requiring one, take your snowmobile to
a Yamaha dealer to check the torque settings and adjust
them if necessary.
@
ESU00368
Spark plug inspection
The spark plug is an important engine component and is
easy to inspect. The condition of the spark plug can indi-
cate the condition of the engine. Check the coloration on
the white porcelain insulator around the center electrode.
The ideal coloration at this point is a medium to a light
tan color for a snowmobile that is being ridden normally.
If a spark plug shows a distinctly different color, there
could be something wrong with the engine. For example,
a very white center electrode porcelain color could indi-
cate an intake track air leak or carburetion problem for
that cylinder. Do not attempt to diagnose such problems
yourself. Instead, take the snowmobile to a Yamaha
dealer for inspection and possible repairs. You should
periodically remove and inspect the spark plug because
heat and deposits will cause a spark plug to slowly break
down and erode. Consult a Yamaha dealer before chang-
ing to a different type of spark plug.
Specified spark plug:
· R · CR8E (NGK) or CR8E (NGK)
U8ES10.book Page 4 Monday, April 12, 2004 1:25 PM
Содержание RS90K
Страница 1: ...OWNER S MANUAL SNOWMOBILE RS90K ...
Страница 2: ......
Страница 8: ...1 1 ESU00004 1 YAMAHA MOTOR CORPORATION U S A SNOWMOBILE LIMITED WARRANTY CW 01E ...
Страница 9: ...1 2 CW 02E ...
Страница 10: ...1 3 CW 03E ...
Страница 11: ...1 4 ESU04280 YAMAHA EXTENDED SERVICE Y E S CW 06E ...
Страница 13: ...2 2 4 RS90M 5 RS90M 6 RSG90 7 RSG90 8 RS90M RSG90 ...
Страница 14: ...2 3 NOTE The following suspension adjustment charts are included with the Owner s Manual RS90 RS90M RS90R ...
Страница 102: ......