Snowmobile Polaris 340 Transport Trail Touring Deluxe (2008 year). Instruction - part 13

52

OPERATION

Starting the Engine

1. Turn the fuel valve on. See 

page 57.

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.

NOTE: Do not depress the throttle until the engine starts.

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.

6. If not equipped with electric start, grasp the recoil rope 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.

CAUTION

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.

WARNING

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.
To avoid injury and/or engine damage, do not operate the electric starter or 

pull-rope starter while the engine is running.

CHOKE POSITIONS

OFF

1/2 CHOKE

FULL CHOKE

53

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 fuel with one pint of Polaris injection oil for each five gal-

lons of fuel. This, in addition to the lubrication supplied by the injection 

system, will assure proper engine break-in.

CAUTION

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 open-

ings 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.

54

OPERATION

Engine Break-In

Oil Injection System

Always check and fill the oil tank when refueling. See page 59.

Oil Recommendations

The only source of engine lubrication for your engine comes from lubri-

cation added to the fuel and oil injection systems. We highly recom-

mend the use of Polaris premium oils for your snowmobile. See page 

113 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.

CAUTION

Serious engine damage can occur without the proper lubrication. Check the 

oil tank level often during the first tank of fuel. If the oil level doesn't go down, 

contact your dealer immediately.

Engine

Style

Premium

2-Cycle

Premium 

Gold 2-Cycle

VES II

2-Cycle

Fan Cooled

Good

Best

Good

55

OPERATION

Track Warm-Up

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 

about 4I (10 cm) off the ground.

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 revo-

lutions.

NOTE: 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 

to loosen snow and ice.

WARNING

A loose track or flying debris could cause serious 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 throt-

tle during warm-up or when the track is free-hanging. Use a stable rear sup-

port.

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.