Snowmobile Polaris Widetrak LX (2015 year). Manual - part 16

66

MAINTENANCE

Lubrication

Rear Suspension

Grease the rear suspension pivot shafts (raise the rear of unit). Locations 
are shown below.

An (X) indicates a grease point or fitting.

x

x

x

x

x

67

MAINTENANCE

Lubrication

Driveshaft Bearing

Inject grease into the fitting on the 
speedometer drive adaptor until 
grease purges from inside or outside 
the bearing seal (approximately two 
pumps).

Throttle Cable

Lubricate the throttle cable lightly 
with grease or oil. With the engine 
off, turn the handlebars to the left 
and lubricate liberally as shown.

Choke and Cable

Lubricate the choke slide and cables 
lightly with oil or grease. Before 
turning the engine off, operate the 
choke intermittently to draw 
moisture out of the choke plunger 
area and reduce the possibility of 
the choke becoming frozen.

Coupler Greasing

Grease the couplers on the 
jackshaft (1) and driveshaft (2).

x

x

x

1

2

68

MAINTENANCE

Lubrication

Gearcase Oil Level

Check the gearcase oil level at the 
intervals outlined in the maintenance 
charts beginning on page 64. Change 
the gearcase oil after the first 500 miles 
(800 km), then every 1000 miles (1600 
km) or seasonally.

To check the oil level, place the 
snowmobile on a level surface. The oil 
level should be between the “safe” 
marks on the dipstick (1). Do not 
overfill.

POLARIS recommends the use of 
POLARIS Synthetic Chaincase Lube. 
See page 106 for the part numbers of 
POLARIS products.

Clean the magnetic plug (2) every 500 
miles (800 km) and whenever checking 
or changing lubricant.

NOTICE: Mixing brands or using non-recommended lubricants could result in 

excessive wear to chain, sprockets and bearings. Always use 
POLARIS-recommended products for your vehicle.

1

2

69

MAINTENANCE

Spark Plugs

It’s very important to use the correct spark plug for your snowmobile. 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 
conditions 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 

damage if the engine is operated in conditions more severe than 
intended for that plug. Always use the spark plugs recommended for 
your snowmobile. Refer to the specifications section beginning on 
page 104.

A new engine can cause temporary spark plug fouling due to the 
preservative added during the assembly process. Avoid prolonged idle 
speeds, which cause plug fouling and carbonization.
• Use recommended spark plugs with the proper gap. Refer to the 

specifications section beginning on page 104.

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

NOTICE: Using non-recommended spark plugs can result in serious engine 

damage. Always use POLARIS-recommended spark plugs.