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Periodic maintenance and adjustment
40
ESU11451
Periodic inspection, adjustment, and lubrication will keep your snowmobile in the safest and
most efficient condition possible. Safety is an obligation of the vehicle owner/operator. The
most important points of vehicle inspection, adjustment, and lubrication are explained on the
following pages.
WARNING
EWS00341
Failure to properly maintain the snowmobile or performing maintenance activities incor-
rectly may increase your risk of injury or death during service or while using the snow-
mobile. If you are not familiar with snowmobile service, have a Yamaha dealer perform
service.
WARNING
EWS00700
Turn off the engine when performing maintenance unless otherwise specified.
● A running engine has moving parts that can catch on body parts or clothing, and elec-
trical parts that can cause shocks or fires.
● Running the engine while servicing can lead to eye injury, burns, fire, or carbon mon-
oxide poisoning–possibly leading to death. See page 3 for more information about
carbon monoxide.
Maintenance, replacement, or repair of the emission control devices and systems may
be performed by any repair establishment or individual that is certified (if applicable).
Proper periodic maintenance of your snowmobile is important in order to enjoy long, pleasur-
able use. Especially important are the maintenance services related to emission control. These
controls not only function to ensure cleaner air, but are also vital to proper engine operation and
maximum performance. In the following periodic maintenance charts, the services related to
emission control are grouped separately. These services require specialized data, knowledge,
and equipment. Yamaha dealers are trained and equipped to perform these particular services.
ESU11461
Periodic maintenance chart for the emission control system
Items marked with an asterisk should be performed by a Yamaha dealer as they require special
tools, data and technical skills.
ITEM REMARKS
INITIAL EVERY
PAGE
1 month
or 800 km
(500 mi)
(40 hr)
Seasonally
or
4000 km
(2500 mi)
(200 hr)
Spark plugs
• Check condition.
• Adjust gap and clean.
• Replace if necessary.
45
* Valve clearance
• Check and adjust valve clear-
ance when engine is cold.
Every 40000 km (25000
mi)
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U8HK10E0.book Page 40 Tuesday, June 10, 2008 1:58 PM