Polaris ACE 150 EFI (2018 year). Manual - part 13

56

EMISSION CONTROL SYSTEMS

Noise Emission Control System

Do not modify the engine, intake or exhaust components, as doing so 

may affect compliance with U.S.A. EPA noise control requirements 

(40 CFR 205) and local noise level requirements.

Operation on Public Lands

in the U.S.A.

Your POLARIS vehicle has a spark arrester that was tested and 

qualified to be in accordance with the USFS standard 5100-1c. Federal 

law requires that this spark arrester be installed and functional when 

the vehicle is operated on public lands.
Operation of off-road vehicles on public lands in the U.S.A. is 

regulated by 43 CFR 420. Violations are subject to monetary 

penalties. Federal regulations can be viewed online at 

www.gpoaccess.gov/ecfr/.

Crankcase Emission Control System

This engine is equipped with a closed crankcase system. Blow-by 

gases are forced back to the combustion chamber by the intake system. 

All exhaust gases exit through the exhaust system.

Exhaust Emission Control System

Exhaust emissions are controlled by engine design. An electronic fuel 

injection (EFI) system controls fuel delivery. The engine and EFI 

components are set at the factory for optimal performance and are not 

adjustable.
The emissions label is located on the frame behind the left front wheel.

Electromagnetic Interference

This spark ignition system complies with Canadian ICES-002.
Non-ionizing Radiation: This vehicle emits some electromagnetic 

energy. People with active or non-active implantable medical devices 

(such as heart monitoring or controlling devices) should review the 

limitations of their device and the applicable electromagnetic 

standards and directives that apply to this vehicle.

57

MAINTENANCE

Periodic Maintenance Chart

Any qualified repair shop or person may maintain, replace or repair 

the emission control devices or systems on your vehicle. An 

authorized POLARIS dealer can perform any service that may be 

necessary for your vehicle. POLARIS also recommends POLARIS 

parts for emissions-related service, however equivalent parts can be 

used. 
It is a potential violation of the Clean Air Act if a part supplied by an 

aftermarket parts manufacturer reduces the effectiveness of the 

vehicle’s emission controls. Tampering with emission controls is 

prohibited by federal law.
Owners are responsible for performing the scheduled maintenance 

identified in this owner’s manual.
Careful periodic maintenance will help keep your vehicle in the safest, 

most reliable condition. Inspection, adjustment and lubrication of 

important components are explained in the periodic maintenance 

chart.

58

MAINTENANCE

Periodic Maintenance Chart

Inspect, clean, lubricate, adjust and replace parts as necessary. When 

inspection reveals the need for replacement parts, genuine POLARIS 

parts are available from your POLARIS dealer. Equivalent parts may 

be used for emissions-related service.
Record maintenance and service in the Maintenance Log beginning on 

page 115.
Service and adjustments are important for proper vehicle operation. If 

you're not familiar with safe service and adjustment procedures, a 

qualified dealer can perform these operations.
Vehicles subjected to heavy or severe use patterns must be inspected 

and serviced more frequently.

Severe Use Definition

• Frequent immersion in mud, water or sand
• Racing or race-style high RPM use
• Prolonged low speed operation
• Extended idle
• Short trip cold weather operation
Pay special attention to the oil level. A rise in oil level during cold 

weather can indicate contaminants collecting in the oil sump or 

crankcase. Change oil immediately if the oil level begins to rise. 

Monitor the oil level, and if it continues to rise, discontinue use and 

determine the cause. Your POLARIS dealer can assist.

59

MAINTENANCE

Periodic Maintenance Chart

Maintenance Chart Key

WARNING! Improperly performing the procedures marked with a “D” could 

result in component failure and lead to serious injury or death. Have an 

authorized POLARIS dealer or other qualified person perform these services.

Symbol

Description

Ź

Perform these operations more often for vehicles subjected to severe 

use.

D

Have an authorized POLARIS dealer or other qulaified person perform 

these services.