Snowmobile Polaris Trail RMK (2010 year). Instruction - part 18

 

  Index      Snowmobiles / ATV     Snowmobile Polaris Trail RMK - instruction 2010 year

 

Search            

 

 

 

 

 

 

 

 

 

Content   ..  16  17  18  19   ..

 

 

Snowmobile Polaris Trail RMK (2010 year). Instruction - part 18

 

 

73

MAINTENANCE

Lubrication

n

Chaincase Oil Level

Check the chaincase oil level at the intervals outlined in the mainte-

nance charts beginning on page 66. Change the chaincase oil after the 

first 500 miles (800 km), then every 1000 miles (1600 km) or season-

ally.
Maintain the oil level between the “safe” marks on the dipstick. Clean 

the magnetic plug on the dipstick whenever checking or changing oil.
Polaris recommends the use of Polaris Synthetic Chaincase Lube. See 

page 109 for the part numbers of Polaris products.

Oil Check
1. Position the vehicle on 

a level surface.

2. Remove the dipstick 

and view the oil level 

on the dipstick.

3. Add the recommended 

oil as needed. Do not 

overfill.

4. Clean the magnetic 

plug.

5. Reinstall the dipstick.

Dipstick

Magnetic 

Plug

74

MAINTENANCE

Spark Plugs

It’s very important to use the correct spark plug for your machine. A 

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

plug with a heat range too low will cause excessive fouling and engine 

malfunctioning.
In selecting a spark plug heat range for production, a manufacturer 

assumes that the engine will be operated under extreme heavy duty con-

ditions and selects a spark plug that will protect the engine from internal 

damage if the purchaser actually does operate the engine in this manner. 

This selection could cause the customer who normally operates the 

engine under medium or light duty to have spark plug failure. 

NOTICE: A spark plug with a heat range too high will always cause engine dam-

age 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.

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.
• Use recommended spark plugs with the proper gap. See your Owner’s 

Manual Supplement.

• Spark plug torque is 18-22 ft. lbs. (24.4-29.8 Nm).
• Always carry spare spark plugs.

75

MAINTENANCE

Spark Plugs

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.

CAUTION! A hot exhaust system and engine can cause burns. Wear 

protective gloves when removing a spark plug for inspection.
Tip: 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 carburetor(s). See your Owner’s Manual Supple-

ment.

Normal Plug

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

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

cates the proper type and heat range for the engine and the service.
The tip should not be white. A white insulator tip indicates overheating, 

caused by use of an improper spark plug or incorrect carburetion adjust-

ments.

Wet Fouled Plug

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.

Spark Plug Removal and Replacement

1. Wear protective gloves.
2. Remove the spark plug cap.
3. Using the special wrench provided in the tool pouch, rotate the 

spark plug counterclockwise to remove it.

4. Reverse the procedure for spark plug installation. Torque to 18-22 

ft. lbs. (24.4-29.8 Nm).

5. Reinstall the spark plug cap.

76

MAINTENANCE

Intake Filter

The intake foam filter and screen limits snow ingestion into the intake 

system. When operating in loose powder snow, check the top of the 

foam filter and screen periodically to remove any accumulation of snow.

NOTICE: Operating the snowmobile with the intake filters removed may cause 

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

malfunction. Always reinstall the intake filters before operating the 

snowmobile.

These illustrations are general representations.Your model may differ.

Intake

Foam Filter and Screen

Foam Filter

Air Intake Box

 

 

 

 

 

 

 

Content   ..  16  17  18  19   ..