Yamaha SXV70G Owner's Manual download pdf (Page 57)

8-4

ESU00142

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.

Tool kit

CAUTION

Before starting the engine, make sure that the tool

kit is firmly seated in the holder and is secured with

the holding band.

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.

ESU00144

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: BR9ES (NGK)

U8EK10.book Page 4 Tuesday, June 26, 2001 4:35 PM

1 2 ... 52 53 54 55 56 57 58 59 60 61 62 ... 95 96

No comments

Yamaha SXV70G Owner's Manual Page 57