Polaris ACE 900 SP - User Manual

Questions and Answers:

D
Donna RussellJul 27, 2025
Why does my Polaris Utility Vehicle engine backfire?
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  vmayJul 27, 2025
  Your Polaris Utility Vehicle engine might backfire due to: * Weak spark from spark plug. Inspect, clean and/or replace spark plug. * Incorrect spark plug gap or heat range. Set gap to specs or replace plug. * Old or non-recommended fuel. Replace with fresh recommended fuel. * Loose ignition connections. Check all connections and tighten. * Water present in fuel. Replace with fresh recommended fuel.
B
Benjamin HaysJul 31, 2025
Why is my Polaris ACE 900 SP drive belt wearing or burning?
- D
  Dana MannJul 31, 2025
  Drive belt wear or burn in your Polaris Utility Vehicle can occur due to several reasons: * Driving onto a pickup or tall trailer in high range. * Starting out going up a steep incline. * Driving at low RPM or ground speed (3-7 MPH). * Insufficient warm-up at low ambient temperatures. * Slow/easy clutch engagement. * Towing/pushing at low RPM/low ground speed. * Utility use/plowing. * Stuck in mud or snow. * Climbing over large objects from a stopped position. * Belt slippage from water or snow ingestion into the PVT system. * Clutch malfunction. * Poor engine performance. * Slippage from failure to warm up belt. * Wrong or missing belt. * Improper break-in.
L
Linda SellersAug 4, 2025
What to do if my Polaris Utility Vehicle engine stops or loses power?
- R
  Robin MillerAug 4, 2025
  If your Polaris Utility Vehicle engine stops or loses power, the following could be the cause: * Out of fuel. Refuel. * Kinked or plugged fuel vent line. Inspect and replace. * Water is present in fuel. Replace with new fuel. * Fouled or defective spark plug. Inspect, clean and/or replace spark plug. * Incorrect spark plug gap or heat range. Set gap to specs or replace plug. * Loose ignition connections. Check all connections and tighten. * Low battery voltage. Recharge the battery to 12.8 VDC. * Incorrect fuel. Replace with fresh recommended fuel. * Clogged air filter. Inspect and clean or replace. * Clogged intake pre-filter. Inspect and clean (with soapy water) or replace. * Overheated engine. Clean radiator screen and core, clean engine exterior.
S
Sandra RogersAug 8, 2025
What to do if my Polaris Utility Vehicle engine runs irregularly, stalls, or misfires?
- R
  racheltaylorAug 8, 2025
  If your Polaris Utility Vehicle engine runs irregularly, stalls, or misfires, consider these potential causes: * Fouled or defective spark plug. Inspect, clean and/or replace spark plug. * Incorrect spark plug gap or heat range. Set gap to specs or replace plug. * Loose ignition connections. Check all connections and tighten. * Water present in fuel. Replace with new fuel. * Low battery voltage. Recharge battery to 12.8 VDC. * Incorrect fuel. Replace with recommended fuel. * Clogged air filter. Inspect and clean or replace. * Clogged intake pre-filter. Inspect and clean (with soapy water) or replace.
S
Steven ChapmanAug 12, 2025
What to do if my Polaris Utility Vehicle engine turns over but fails to start?
- E
  Emily ThompsonAug 13, 2025
  If your Polaris Utility Vehicle engine turns over but fails to start, check the following: * Out of fuel. Refuel. * Water is present in fuel. Drain the fuel system and refuel. * Old or non-recommended fuel. Replace with fresh recommended fuel. * Fouled or defective spark plug. Inspect plug and replace if necessary. * No spark to spark plug. Inspect plug and replace if necessary. * Low battery voltage. Recharge the battery to 12.8 VDC.
M
mary06Aug 16, 2025
How to fix Polaris Utility Vehicle engine pinging or knocking?
- S
  Suzanne WilliamsAug 17, 2025
  If your Polaris Utility Vehicle engine is pinging or knocking, it could be due to: * Poor quality or low octane fuel. Replace with recommended fuel. * Incorrect spark plug gap or heat range. Set gap to specs or replace plug.
W
Walter ThompsonAug 21, 2025
Why won't my Polaris Utility Vehicle engine turn over?
- P
  Paula NorrisAug 21, 2025
  If your Polaris Utility Vehicle engine doesn't turn over, it could be due to: * Low battery voltage. Recharge the battery to 12.8 VDC. * Loose battery connections. Check all connections and tighten. * Loose solenoid connections. Check all connections and tighten. * Loose electronic control box connections. Inspect, clean, reinstall connectors.

Polaris ACE 900 SP Specifications

General

Brand	Polaris
Model	ACE 900 SP
Category	Utility Vehicle
Language	English

Summary

INTRODUCTION

Signal Words and Safety Symbols

Explains safety alert symbols and signal words like DANGER, WARNING, CAUTION, NOTICE.

Vehicle Identification Numbers

Details how to record VIN, engine serial number, and key number.

SAFETY

Safety Training and Protective Gear

Emphasizes safety training and essential protective gear for operators.

Operator Requirements and Prohibitions

Outlines operator requirements, age limits, and prohibitions like alcohol/drug use.

General Driving Safety and Hazard Awareness

Covers general safety rules, preparedness, responsible driving, and label awareness.

Operational Hazard Warnings

Addresses tire maintenance, speed limits, road use, turning, hills, and terrain.

Specific Condition Safety Procedures

Covers safety for water, ice, cargo, refueling, exhaust, and vehicle modifications.

FEATURES AND CONTROLS

Component Identification

Illustrates and labels major components of the vehicle for easy identification.

Vehicle Access and Adjustment Features

Describes access panels, bumper removal, steering wheel adjustment, and seat adjustments.

Key Controls and Indicators

Identifies and explains switches, gear selector, pedals, and indicator lamps.

Safety Structures and Systems

Details the Rollover Protective Structure (ROPS) and the All Wheel Drive (AWD) system.

Instrument Cluster Information

Explains the instrument cluster, speedometer, modes, and various indicators.

Maintenance and Diagnostic Features

Covers programmable service intervals and accessing diagnostic information for troubleshooting.

OPERATION

Vehicle Break-in and Pre-Ride Inspection

Details the crucial break-in period and essential pre-ride inspection procedures.

Safe Driving Practices and Hazard Avoidance

Outlines safe operating practices, driving techniques for various terrains, and trail etiquette.

Engine Starting, Stopping, and Braking

Provides step-by-step instructions for starting, stopping, braking, and parking the vehicle.

New Operator Driving Procedures

A comprehensive guide for new operators to learn vehicle handling and maneuvers.

Driving in Specific Conditions

Covers safe driving on slippery surfaces, hills, water, and over obstacles.

Cargo Hauling and Towing Safety

Details safety precautions for carrying cargo and towing loads, including weight and speed limits.

WINCH GUIDE

Winch Safety Precautions

Lists essential safety precautions for operating a winch, covering general use and specific hazards.

Winch Operation and Cable Care

Provides instructions for safe winch operation, including cable care and avoiding shock loading.

EMISSION CONTROL SYSTEMS

Noise Emission Control and Public Land Regulations

Discusses noise control, public land operation rules, and emission system explanations.

Electromagnetic Interference Compliance

Addresses the vehicle's compliance with electromagnetic interference standards.

MAINTENANCE

Periodic Maintenance Schedule

Outlines the schedule for routine maintenance tasks based on hours, calendar, and miles.

Engine Oil and Filter Service

Explains the importance of engine oil, recommendations, and procedures for checking and changing oil and filter.

Gearcase and Fluid Maintenance

Explains checking and changing fluids for gearcases and provides specifications.

Spark Plug, Fuse, and Cooling System Service

Covers spark plug maintenance, fuse management, and cooling system service.

PVT System, Brakes, Tires, and Suspension Care

Details PVT system, brake checks, tire maintenance, and suspension adjustments for safety and performance.

Battery Maintenance and Charging

Discusses battery care, removal, installation, and charging procedures for optimal performance.

Vehicle Cleaning, Storage, and Transport

Introduces procedures for washing, polishing, storing, and transporting the vehicle.

SPECIFICATIONS

Vehicle Specifications Table

Lists detailed technical specifications for the POLARIS ACE 900 SP model.

POLARIS Product Parts List

Lists part numbers and descriptions for various Polaris products and lubricants.

TROUBLESHOOTING

Drive Belt and Engine Starting Issues

Provides solutions for drive belt problems and engine starting issues.

Engine Performance and Power Loss Issues

Lists possible causes and solutions for engine pinging, stalling, misfiring, or power loss.

WARRANTY

Limited Warranty Terms and Registration

Outlines the limited warranty terms, coverage, exclusions, and registration process.

Obtaining Service and Regional Policies

Provides instructions for warranty service and regional policies, including for exported products.

Emissions Limited Warranty Details

Details the specific emissions limited warranty requirements and coverage according to EPA regulations.

MAINTENANCE LOG

Periodic Maintenance Log Record

A log for recording periodic maintenance performed on the vehicle for service history.

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