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Periodic maintenance
39
ESU11450
Safety is an obligation of the owner. Periodic inspection, adjustment, and lubrication will keep
your snowmobile in the safest and most efficient condition possible. The most important points
of snowmobile inspection, adjustment, and lubrication are explained on the following pages.
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).
WARNING
EWS00340
If you are not familiar with maintenance work, have a Yamaha dealer do it for you.
PROPER PERIODIC MAINTENANCE OF YOUR SNOWMOBILE IS IMPORTANT IN ORDER
TO ENJOY LONG, PLEASURABLE SERVICE. ESPECIALLY IMPORTANT ARE THE MAIN-
TENANCE SERVICES RELATED TO EMISSION CONTROL. THESE CONTROLS NOT
ONLY FUNCTION TO ENSURE CLEANER AIR, BUT ARE ALSO VITAL TO PROPER EN-
GINE OPERATION AND MAXIMUM PERFORMANCE. IN THE FOLLOWING PERIODIC
MAINTENANCE CHARTS, THE SERVICES RELATED TO EMISSION CONTROL ARE
GROUPED SEPARATELY. THESE SERVICES REQUIRE SPECIALIZED DATA, KNOWL-
EDGE, AND EQUIPMENT. YAMAHA DEALERS ARE TRAINED AND EQUIPPED TO PER-
FORM THESE PARTICULAR SERVICES.
ESU11460
Periodic maintenance chart for the emission control system
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.
44
* Valve clearance
• Check and adjust valve clear-
ance when engine is cold.
Every 40000 km (25000
mi)
48
*
Crankcase breather
system
• Check breather hose for cracks
or damage.
• Replace if necessary.
—
* Fuel filter
• Check condition.
• Replace fuel pump assembly if
necessary.
—
* Fuel line
• Check fuel hose for cracks or
damage.
• Replace if necessary.
—
* Fuel injection
• Check synchronization.
• Adjust if necessary.
—
U8GL10E0.book Page 39 Friday, May 18, 2007 3:17 PM