Polaris ACE 150 EFI 2018 User manual

2018
Owner’s MAnual
POLARIS ACE® 150 EFI

WARNING
Read, understand, and follow all of the instructions and safety
precautions in this manual and on all product labels.
Failure to follow the safety precautions
could result in serious injury or death.
WARNING
The engine exhaust from this product contains chemicals
known to the State of California to cause cancer, birth defects
or other reproductive harm.
For videos and more information
about a safe riding experience with
your Polaris vehicle, scan this QR
code with your smartphone.

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Visit us at www.polaris.com

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POLARIS® is a trademark of POLARIS Industries Inc.
Copyright 201POLARIS Industries Inc. All information contained within this
publication is based on the latest product information at the time of publication. Due
to constant improvements in the design and quality of production components, some
minor discrepancies may result between the actual vehicle and the information
presented in this publication. Depictions and/or procedures in this publication are
intended for reference use only. No liability can be accepted for omissions or
inaccuracies. Any reprinting or reuse of the depictions and/or procedures contained
within, whether whole or in part, is expressly prohibited.
The original instructions for this vehicle are in English. Other languages are provided
as translations of the original instructions.
Printed in China
201ACE 150 EFI Owner’s Manual
P/N 992

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WELCOME
Dear Parents:
We believe your children should have the opportunity to enjoy the
POLARIS riding experience along with you. We encourage you to
teach your children to ride safely, and to help ensure the future of
recreational sports, please teach them to show respect for our
environment and for the rights of others while operating the vehicle.
This vehicle is not a toy and can be hazardous to operate. We've
provided this owner’s manual and an instructional video to help you
and your children learn about the safe operation and care of your new
POLARIS vehicle. Before your children drive in the vehicle, please
read and make sure they read this owner’s manual. Watch the
instructional video with them. Make sure all operators understand
and follow all of the instructions and warnings contained in this
owner’s manual and video. Make sure they understand that the vehicle
must be used under adult supervision at all times.
After reading this owner’s manual and watching the video, help your
child practice the New Operator Driving Procedures on pages 47-48.
Never allow a child under age 10 to operate this vehicle. Children
differ in skills, physical abilities and judgement. Please supervise the
use of the vehicle at all times. Permit continued use only if you
determine that your child has the ability and maturity to operate safely.

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WELCOME
For your child’s safety, be sure your child can reach and operate all
ACE 150 controls, including steering wheel, accelerator and brake
pedals, and ignition switch. Make sure your child is not too tall to ride
safely in this vehicle. See page 14.
The vehicle’s speed control system allows adults to limit vehicle speed
for new and inexperienced operators. Please see page 39 for more
information.
The preventive maintenance program outlined in this manual is
designed to ensure that all critical components on your child's vehicle
are thoroughly inspected at specific intervals. Always follow all of the
instructions and recommendations in this manual to ensure the vehicle
remains in safe operating condition at all times.
This POLARIS vehicle is not designed for adult use. Serious damage
may occur if the maximum weight capacity is exceeded. Refer to
vehicle labels and to the specifications section beginning on page 100
for the maximum weight capacity.

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WELCOME
Dear Young Operators:
Before you ride your new POLARIS vehicle, there are some important
things that you need to know. You must learn how to keep yourself
and those around you safe while you're riding.
Your parents and POLARIS want you to be safe while you enjoy
riding your new vehicle, and that's why it’s very important that you
read this owner’s manual and watch the instructional video. Make sure
you understand and follow all of the instructions and warnings in this
owner’s manual and video. Ask your parents to explain anything you
don't understand.
Your safety and the safety of others is the most important thing to
think about at all times. Pay attention when you see this symbol:
This is the safety alert symbol. When you see this symbol on your
vehicle or in this manual it means PAY ATTENTION because you could
die or be seriously injured if you don't follow the instructions.
After reading this owner’s manual and watching the video, complete
the New Operator Driving Procedures on pages 47-48. Show your
parent that you understand how to drive safely.
Enjoy riding your new POLARIS vehicle!

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TABLE OF CONTENTS
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Features and Controls . . . . . . . . . . . . . . . . 27
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Emission Control Systems . . . . . . . . . . . . 56
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . 57
Specifications . . . . . . . . . . . . . . . . . . . . . . 100
POLARIS Products . . . . . . . . . . . . . . . . . . 102
Troubleshooting . . . . . . . . . . . . . . . . . . . . 103
Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Maintenance Log. . . . . . . . . . . . . . . . . . . . 115
Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

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INTRODUCTION
The following signal words and symbols appear throughout this
manual and on your vehicle. Your safety is involved when these words
and symbols are used. Become familiar with their meanings before
reading the manual.
The safety alert symbol indicates a potential personal injury hazard.
DANGER
A DANGER indicates a hazardous situation that, if not avoided, will result in
death or serious injury.
WARNING
A WARNING indicates a hazardous situation that, if not avoided, could result
in death or serious injury.
CAUTION
A CAUTION indicates a hazardous situation that, if not avoided, could result in
minor or moderate injury.
NOTICE
A NOTICE indicates a situation that could result in property damage.
The Prohibition Safety Sign indicates an action NOT to take in order
to avoid a hazard.
The Mandatory Action Sign indicates an action that NEEDS to be
taken to avoid a hazard.

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INTRODUCTION
Failure to follow the warnings and safety precautions contained in this manual
can result in severe injury or death. Your POLARIS vehicle is not a toy and
can be hazardous to operate. This vehicle handles differently than cars, trucks
or other off-road vehicles. A collision or rollover can occur quickly, even during
routine maneuvers like turning, or driving on hills or over obstacles, if you fail
to take proper precautions.
• Never operate this vehicle without proper instruction. All operators and
supervising adults must watch the instructional video that was provided with
the vehicle. Read this owner’s manual and review the safety DVD that came
with your vehicle. A free extra copy of the DVD can be obtained by
contacting your local POLARIS dealer. Understand all safety warnings,
precautions and operating procedures before operating the vehicle. Keep
this manual with the vehicle.
• For your child’s safety, be sure your child can reach and operate all ACE 150
controls, including steering wheel, accelerator and brake pedals, and ignition
switch. All operators must be able to sit with backs against the seat, both feet
flat on the floor and both hands on the steering wheel.
• Always follow the age guidelines for your vehicle. Operation is prohibited for
anyone under age 10.
• Always use the cab nets (or doors) while riding in this vehicle. Always keep
hands, feet and all other body parts inside the vehicle at all times.
• Always wear a helmet, eye protection, gloves, long-sleeve shirt, long pants
and over-the-ankle boots.
• Complete the New Operator Driving Procedures outlined on pages 47-3.
Never allow a guest to operate this vehicle until the guest has watched the
instructional video and has completed the New Operator Driving Procedures.
• Passengers are prohibited at all times. Never allow someone other than the
current driver to occupy this vehicle.
WARNING

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INTRODUCTION
Vehicle Identification Numbers
Record your vehicle's identification numbers and key number in the
spaces provided. Remove the spare key and store it in a safe place. An
ignition key can be duplicated only by ordering a POLARIS key blank
(using your key number) and mating it with one of your existing keys.
The ignition switch must be replaced if all keys are lost.
Vehicle Model Number:
Vehicle Identification Number:
Engine Serial Number:
Key Number:
Engine Serial Number
(on top of engine)
Key
Number
Vehicle
Identification
Number
(left rear wheel well)
####

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SAFETY
Equipment Modifications
Your POLARIS vehicle is designed to provide safe operation when used as
directed.
WARNING! Modifying this vehicle in any way can change the top speed,
stability and handling performance of this vehicle. Modifications that increase
speed, decrease stability or change performance may present a greater risk to
inexperienced or younger operators and could result in loss of control and
serious injury or death. Use only POLARIS-approved accessories to modify
this vehicle. Review all vehicle changes with your child prior to operating.
The POLARIS limited warranty on your POLARIS vehicle will be terminated if
any non-POLARIS-approved equipment and/or modifications have been
added to the vehicle that increase speed, ride height, handling characteristics,
or power.

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SAFETY
Safe Riding Gear
The driver must wear helmet, eye protection, gloves, long-sleeve shirt,
long pants, over-the-ankle boots and seat belt at all times. Protective
gear reduces the chance of injury.
Helmet
Wearing a helmet can prevent a severe head
injury. Whenever riding this POLARIS vehicle,
always wear a helmet that meets or exceeds
established safety standards.
Approved helmets in the USA and Canada bear a
U.S. Department of Transportation (DOT) label.
Approved helmets in Europe, Asia and Oceania bear the ECE 22.05
label. The ECE mark consists of a circle surrounding the letter E,
followed by the distinguishing number of the country which has
granted approval. The approval number and serial number will also be
displayed on the label.
Helmet
Eye
Protection
Gloves
Long
Sleeves
E
4
051039
0006.31

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SAFETY
Safe Riding Gear
Eye Protection
Do not depend on eyeglasses or sunglasses for eye protection.
Whenever riding this POLARIS vehicle, always wear shatterproof
goggles or use a shatterproof helmet face shield. POLARIS
recommends wearing approved Personal Protective Equipment (PPE)
bearing markings such as VESC 8, V-8, Z87.1, or CE. Make sure
protective eye wear is kept clean.
Gloves
Wear gloves for comfort and for protection from sun, cold weather and
other elements.
Boots
Wear sturdy over-the-ankle boots for support and protection. Never
ride a POLARIS vehicle with bare feet or sandals.
Clothing
Wear long sleeves and long pants to protect arms and legs.
Rider Comfort
Under certain operating conditions, heat generated by the engine and
exhaust system can elevate temperatures in the driver cab area. The
condition occurs most frequently when a vehicle is being operated in
high ambient temperatures at low speeds and/or high load conditions
for an extended period of time. The use of certain windshield, roof
and/or cab systems may contribute to this condition by restricting
airflow. Any discomfort due to heat buildup in this area can be
minimized by wearing proper riding apparel and by varying speeds to
increase airflow.

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SAFETY
Safety Warnings
Failure to operate this vehicle properly can result in a collision, loss of control,
accident or rollover, which may result in serious injury or death. Heed all
safety warnings outlined in this section of the owner’s manual and in the
safety DVD provided with your vehicle.
Be sure to read all of the following warnings about driving hazards and how to
avoid them. These warnings are provided for your child's safety. Be sure to
explain to your young driver that the hazards outlined in this section of this
owner’s manual MUST be avoided at all times. See the OPERATION section
of this owner’s manual for proper operating procedures.
Operating Without Instruction
Operating this vehicle without proper
instruction increases the risk of an accident.
The operator and the supervising adult must
understand how to operate the vehicle
properly in different situations and on
different types of terrain. Complete the New
Operator Driving Procedures outlined on
pages 47-8.
All operators must read and understand this
owner’s manual and all warning and
instruction labels before operating the
vehicle. Never allow a guest to operate this
vehicle until the guest has read this manual
and all product labels and has completed the New Operator Driving
Procedures outlined on pages 47-48.
WARNING

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SAFETY
Age Restrictions
This vehicle is for recreational use by young
operators under adult supervision ONLY.
Operation is prohibited for anyone under age
10. Operators must be able to sit with backs
against the seat, both feet flat on the floor and
both hands on the steering wheel.
Rider Height
Some riders may be too tall to ride safely in
this vehicle. Do not operate in this vehicle if
the clearance between the top of your
helmet and the overhead cab frame is less
than 2 inches (5 cm).
Seat Belts
Riding in this vehicle without wearing the
seat belt increases the risk of serious injury
in the event of rollover, loss of control, other
accident or sudden stop. Seat belts may
reduce the severity of injury in these
circumstances. Operators must wear seat
belts at all times. Always make sure the seat
belt is secured for the operator before riding.
Passengers
Passengers are prohibited on this vehicle. Never carry passengers in the
vehicle cab or in the cargo box. Passengers can be thrown off. This can cause
serious injury or death.
Minimum
2 inches
(5 cm)

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SAFETY
Safety Warnings
Failure to Inspect Before Operating
Failure to inspect and verify that the vehicle is
in safe operating condition before operating
increases the risk of an accident.
Always inspect the vehicle before each use to
make sure it's in safe operating condition. See
page 43.
Always follow the inspection and maintenance
procedures and schedules described in this
owner’s manual. See page 57.
Protective Apparel
Riding in this vehicle without wearing an
approved helmet and protective eye-wear
increases the risk of serious injury in the
event of an accident.
Operator must always wear an approved
helmet that fits properly and eye protection
(goggles or face shield).
Cab Nets
Riding in this vehicle without using the cab nets (or doors, if equipped)
increases the risk of serious injury or death in the event of an accident or
rollover. Always use the cab nets (or doors) while riding in this vehicle. Always
keep hands and feet inside the vehicle at all times.

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SAFETY
Safety Warnings
Using Alcohol or Drugs
Riding in this vehicle after consuming alcohol or
drugs could adversely affect operator judgment,
reaction time, balance and perception.
Never consume alcohol or drugs before or while
operating or riding in this vehicle.
Operating on Pavement
This vehicle's tires are designed for off-road use
only, not for use on pavement. Operating this
vehicle on paved surfaces (including sidewalks,
paths, parking lots and driveways) may adversely affect the handling of the
vehicle and may increase the risk of loss of control and accident or rollover.
Avoid operating the vehicle on pavement. If it's unavoidable, travel slowly,
travel short distances and avoid sudden turns or stops.
Operating on Public Roads
Operating this vehicle on public streets,
roads or highways could result in a
collision with another vehicle. Never
operate this vehicle on any public street,
road or highway, including dirt and gravel
roads (unless designated for off-highway
use).

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SAFETY
Safety Warnings
Operating at Excessive Speeds
Operating this vehicle at excessive
speeds increases the operator's risk
of losing control.
Always operate at a speed that's
appropriate for the terrain, the
visibility and operating conditions,
and your skills and experience.
Turning Improperly
Turning improperly could cause loss
of traction, loss of control, accident or
rollover. Always follow proper procedures for turning as described in this
owner’s manual.
Never turn abruptly or at sharp angles. Never turn at high speeds. Practice
turning at slow speeds before attempting to turn at faster speeds.
Physical Control of the Vehicle
Removing hands from the steering wheel or removing feet from the floor while
riding increases the risk of loss of control and accident or rollover.
The operator should always keep both hands on the steering wheel during
operation.
Always keep hands and feet inside the vehicle at all times.
Jumps and Stunts
Exhibition driving increases the risk of an
accident or rollover. DO NOT do power
slides, “donuts”, jumps or other driving
stunts. Avoid exhibition driving.

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SAFETY
Safety Warnings
Driving Downhill Improperly
Driving down a hill improperly could cause
loss of control or rollover. Always follow
proper procedures for driving down a hill as
described in this owner’s manual. See page
51.
Improper Hill Climbing
Improper hill climbing could cause loss of
control or rollover. Use extreme caution when
operating on hills. Always follow proper
procedures for hill climbing as described in
this owner’s manual. See page 50. Never
operate the vehicle on hills steeper than 15
degrees.
Crossing Hillsides
Driving on a sidehill is not recommended.
Improper procedure could cause loss of
control or rollover. Avoid crossing the side of any hill unless absolutely
necessary.
If crossing a hillside is unavoidable, always follow proper procedures as
described in this owner’s manual. See page 51.
+15°
+15°