Snowmobile Polaris Trail RMK (2010 year). Instruction - part 12

 

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Snowmobile Polaris Trail RMK (2010 year). Instruction - part 12

 

 

49

OPERATION

Starting the Engine

NOTICE: Engaging the starter when the engine is running WILL result in serious 

engine damage, especially if the transmission is in reverse. Never 

engage the starter when the engine is running.

1. Turn the fuel valve on. See 

page 27.

2. Turn the key to the ON 

position.

3. Pull the engine stop switch 

up to the RUN position.

4. If starting a cold engine, 

flip the choke toggle to 

FULL CHOKE. Do not 

use the choke if starting a 

warm engine.

CAUTION! Do not depress the throttle until the engine starts.
CAUTION! To avoid injury and/or engine damage, do not operate the electric 

starter or pull-rope starter while the engine is running.

5. If equipped with electric start, turn the key to START to crank the 

engine. Release the key to the ON position when the engine starts.

NOTICE: Don’t pull the starter rope to the fully extended position and don’t allow 

it to snap back into the housing. Damage may result.

6. If not equipped with electric start, grasp starter handle and pull 

slowly until the recoil engages; then pull abruptly to crank the 

engine.

7. Repeat the cranking procedure as needed until the engine starts.
8. After the engine starts, flip the choke toggle to the OFF position. If 

the engine slows or wants to stop, use intermittent choking to the 

HALF CHOKE position.

CHOKE POSITIONS

OFF

1/2 CHOKE

FULL CHOKE

50

OPERATION

Engine Break-In

No single action on your part is as important to long, trouble-free 

machine life as proper break-in of a new or rebuilt engine. Premix the 

first tank of gasoline with one pint of Polaris injection oil for each five 

gallons of fuel. This, in addition to the lubrication supplied by the injec-

tion system, will assure proper engine break-in. 

NOTICE: Excessive heat build-up during the first three hours of operation will 

damage close-fitted engine parts. Do not operate at full throttle or high 

speeds for extended periods during the first three hours of use. Vary 

the throttle openings and machine speeds to reduce friction on all 

close-fitting machined parts, allowing them to break in slowly without 

damage.
Use of any lubricants other than those recommended by Polaris may 

cause serious engine damage. We recommend the use of Polaris 

lubricants for your vehicle.
Drive with extra caution during the break-in period. Perform regular 

checks on fluid levels, lines, and all other important areas of the 

machine.

51

OPERATION

Engine Break-In

Oil Injection System

Always check and fill the oil tank when refueling. See page 55.

NOTICE: Serious engine damage can occur without the proper lubrication. 

Check the oil tank level often during the first tankful of fuel. If the oil 

level doesn’t go down, contact your dealer immediately.

Oil Recommendations

Engine lubrication comes from oil added to the fuel and oil injection 

systems. Polaris recommends the use of Premium 2-Cycle Oil for this 

engine. See page 109 for the part numbers of Polaris products.
Never mix brands of oil. Serious chemical reactions can cause injection 

system blockage, resulting in serious engine damage. Oils may also be 

incompatible and the result could be sludge formation, filter blockage, 

and reduced cold weather flow rates. All Polaris oils are compatible 

with each other.

52

OPERATION

Track Warm-Up

WARNING! Use of traction products such as studs, ice growsers, etc. will 

increase the possibility of track damage and/or failure. This could cause loss of 

control, resulting in serious injury or death. Always inspect for track damage 

before operating the snowmobile.

Follow these steps to ensure proper warm-up of the engine, drive train 

and track.
1. Use an appropriate stand to securely 

support the rear of the snowmobile at the 

rear bumper. The track should be 

approximately 4 inches (10 cm) off the 

ground.

WARNING! A loose track or flying debris could 

cause serious personal injury or death. Stand 

clear of the front of the machine and the moving 

track. Never hold the snowmobile up or stand 

behind it while warming up the track. Do not use 

excessive throttle during warm-up or when the track is free-hanging. Be sure the 

rear support is stable.

2. Start the engine and allow it to warm up two to three minutes.
3. Depress the throttle abruptly and allow the track to rotate several 

revolutions.

Tip: It will take longer to warm up the track sufficiently during colder outdoor 

temperatures.

4. Release the throttle, apply the brakes, shut off the engine and lower 

the machine to the ground.

5. Grasp the skis by their front loops and move them from side to side. 

This will loosen frozen snow from the ski bottoms, allowing the 

machine to move forward more easily.

6. The engine, drive system and track are now properly warmed up 

and the machine may be driven following normal safety practices.

 

 

 

 

 

 

 

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