Snowmobile Polaris 120 PRO R (2013 year). Instruction - part 14

57

ADULT SECTION

Maintenance

Brake Cable Adjustment

4. Check the actuator linkage to 

ensure there is adequate 
freedom of movement for 
positive brake operation and 
that all floating parts move 
freely and that all parts are 
mounted securely. Tighten 
hardware as required.

5. Tighten the adjuster jam nut and 

slide the rubber protectors onto 
the adjuster.

6. The brake band is adjusted 

correctly when brake lever 
freeplay is 1/4- 3/8” (6-10 mm) 
and clearance between the brake 
lever and block with the lever 
fully depressed is no more than 
3/4” (19 mm). Torque the band 
bolt nut to 6 ft. lbs. (8 Nm).

1/4-3/8” (6-10 mm)

Band Bolt Nut

58

ADULT SECTION

Maintenance

Throttle Cable Lubrication

With the engine off, lubricate the 
throttle cable occasionally. Turn 
the handlebars to the left and 
lubricate liberally with POLARIS 
All Season Grease.

Choke/Cable Lubrication

Lubricate the choke slide and 
cables occasionally as shown. 
Operate the choke intermittently 
before turning the engine off. This 
draws moisture out of the choke 
plunger area and reduces the possi-
bility of the choke becoming fro-
zen.

Throttle Cable Pivot Slug

Lubricate the throttle cable pivot 
slug every 50 hours or twice a year 
using an aerosol lubricant.

Pivot Slug

59

ADULT SECTION

Maintenance

Chain Tensioner

Inspect the chain. Proper deflection is one inch (25 mm). Adjust the 
chain if deflection is incorrect.

1. Loosen the nut on the chain tensioner.

2. Raise the tensioner until the correct deflection is attained.

3. Tighten the nut to 15-18 ft. lbs. (20-24 Nm).

TIP: When the chain has stretched to within 1/8" (3 mm) of the muffler mount 

bracket on the chassis, replace the chain. Inspect the sprockets as they 
also wear and often need replacement when the chain is replaced.

Chain Tensioner

1" (25 mm)

1/8" (3 mm)

Muffler Mount Bracket

60

ADULT SECTION

Maintenance

Driveline Lubrication

TIP: Driveline noise is normal for this vehicle.

To ensure long life of the snowmobile's driveline, lubricate as follows:
• Lubricate Point A every 15 hours of operation with a small amount of 

POLARIS Premium All Season Grease. 

• Lubricate Point B every 10 hours of operation with aerosol chain lube 

or SAE 30 oil.

Carburetor

Track

Drive Shaft

Chain

Point B

Point A

Torque Converter

(Centrifugal Clutch)

Engine