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Periodic maintenance
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).
EWS00340
iWARNING
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
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ITEM
Spark plugs
Valve clearance
Crankcase breather
system
Fuel filter
Fuel line
Idle speed
Fuel injection
REMARKS
• Check condition.
• Adjust gap and clean.
• Replace if necessary.
• Check and adjust valve clear-
ance when engine is cold.
• Check breather hose for cracks
or damage.
• Replace if necessary.
• Check condition.
• Replace if necessary.
• Check fuel hose for cracks or
damage.
• Replace if necessary.
• Check and adjust idle speed.
• Adjust synchronization.
INITIAL
1 month
or 800 km
(500 mi)
(40 hr)
EVERY
Seasonally
or
4000 km
(2500 mi)
(200 hr)
•
Every 40000 km (25000
mi)
•
•
PAG E
47
52
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—
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48
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41
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