Snowmobile Polaris 600 Fusion (2006 year). Manual - part 23

92

MAINTENANCE

General Maintenance

Spark Plugs

A new engine can cause temporary spark plug fouling due to the preser-

vative added during the assembly process.  Avoid prolonged idle speeds, 

which cause plug fouling and carbonization.

Refer to your Owner's Manual Supplement for the specific spark plug to 

be used in your machine.

Change the spark plugs every 2000-2500 miles (3200-4000 km).

CAUTION

Using non-recommended spark plugs can result in serious engine damage.  

A spark plug with a heat range too high will always cause engine damage if 

the engine is operated in conditions more severe than intended for that plug.  

Always use the spark plugs recommended for your snowmobile. See your 

Owner’s Manual Supplement.
• Use recommended spark plugs with the proper gap.
• Use only resistor-type spark plugs.
• Torque spark plugs to 18-22 ft. lbs. (24-30 Nm).
• Always carry spare spark plugs.

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MAINTENANCE

General Maintenance

Spark Plug Condition

Spark plug condition is indicative of engine operation.  The spark plug 

firing end condition should be read after the engine has been warmed up 

and the vehicle has been driven at higher speeds.  Immediately check the 

spark plug for correct color.

NOTE: Incorrect fuel mixture can often cause a spark plug to appear 

too dark or too light in color.  Before changing spark plug heat 

ranges, be sure the correct main jet is installed in the carbure-

tor(s).  Refer to the Owner's Manual Supplement or see your 

dealer.

1. Normal

The normal insulator tip is gray, tan or light brown.  There will be few 

combustion deposits.  The electrodes are not burned or eroded.  This 

indicates the proper type and heat range for the engine and the service.

NOTE: The tip should not be white.  A white insulator tip indicates 

overheating, caused by use of an improper spark plug or incor-

rect carburetor/throttle body adjustments.

2. Wet Fouled

The wet fouled insulator tip is black.  A damp oil film covers the firing 

end.  There may be a carbon layer over the entire nose.  Generally, the 

electrodes are not worn.  General causes of fouling are excessive oil, use 

of non-recommended injection oil, improper use of the choke, or incor-

rect carburetion adjustments.

WARNING

A hot exhaust system and engine can cause serious burns. Wear protective 

gloves when removing a spark plug for inspection.

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MAINTENANCE

General Maintenance

Spark Plug Removal and Replacement

1. Remove the spark plug cap.
2. Using the special wrench provided in 

the tool pouch, rotate the spark plug 

counterclockwise to remove.

3. Reverse the procedure for spark plug 

installation. 

4. Torque to 18-22 ft. lbs. (24-30 Nm).
5. Reinstall the spark plug cap.

Oil Lines

Inspect oil line condition every 1000 miles (1600 km).

Oil Filter

The oil filter is located at the side of 

the oil tank. Have your dealer change 

the oil filter and bleed the system 

annually or every 1000 miles (1600 

km). 

NOTE: The direction of the arrows 

indicates the direction of 

flow through the filter.

95

MAINTENANCE

General Maintenance

Intake Filters

The intake foam filters (

✪) 

limit snow ingestion into 

the intake system.  When 

operating in loose powder 

snow, check the foam filters 

periodically to remove any 

accumulation of snow.

Fuel Pump

All fuel pump service must be performed by an authorized Polaris 

dealer.  Do not attempt to service the fuel pump.

Fuel Filter/Fuel Lines

See your Polaris dealer for replacement of the in-tank fuel filter every 

1000 miles (or annually).

Inspect the fuel lines regularly for signs of deterioration or damage.  

Always check fuel line condition after periods of storage. Normal dete-

rioration from weather and fuel compounds may occur.  Replace worn 

or damaged fuel lines promptly.

CAUTION

Operating the snowmobile with the intake filters removed may cause carbu-

retor icing.  The result will be poor fuel economy or carburetor malfunction.  

Always reinstall the intake filters before operating the snowmobile.

CAUTION

Kinking the fuel lines or using a pliers or similar tools to remove fuel lines 

may cause damage to the lines.  If a fuel line has been damaged or kinked, 

replace it promptly.

✪