Polaris ACE 150 EFI (2018 year). Manual - part 24

101

SPECIFICATIONS

ACE 150 EFI

Throttle Body Size

32 mm 

Ignition System

Electronic Control Unit

Ignition Timing

Timing non-adjustable, ECU controlled

Spark Plug / Gap

NGK CR7HSA / 0.6-0.7 mm

Front Suspension

Dual A-arm w/5.1 in. (13 cm) travel

Rear Suspension

Dual Shock swing A-arm w/6 in. (15.2 cm) 

travel

Lubrication System

Wet Sump

Driving System Type

Automatic Constant Variable Transmission

Final Drive

Chain

Shift Type

F/N/R

Tire Size - Front

22x7-10

Tire Size - Rear

22x10-10

Tire Pressure - Front

3 psi (20.7 kPa)

Tire Pressure - Rear

6 psi (41.4 kPa)

Brakes, Front/Rear

Foot Activated, hydraulic disc

Parking Brake

Mechanical, Rear (Lever)

Daytime Running Lights

Dual, Standard

Brake Light

Standard

102

POLARIS PRODUCTS

Part 

Number

Description

Engine Lubricant

2870791

Fogging Oil (12 oz. Aerosol)

Gearcase / Transmission Lubricants

2878068

AGL Full Synthetic Gearcase Lubricant & Transmission 

Fluid (qt./.95 l)

2878069

AGL Full Synthetic Gearcase Lubricant & Transmission 

Fluid (gal./3.8 l)

2872348

Chain Lube, Aerosol

Grease / Specialized Lubricants

2871312

Grease Gun Kit, All Season Grease

2871322

All Season Grease (3 oz./89 ml cartridge)

2871423

All Season Grease (14 oz./414 ml cartridge)

2871329

Dielectric Grease (Nyogel™)

Additives / Miscellaneous

2871326

Carbon Clean

2870652

Fuel Stabilizer

2872189

DOT 4 Brake Fluid

2871956

Loctite™ 565 Thread Sealant

103

TROUBLESHOOTING

Drive Belt Wear/Burn

Possible Cause

Solution

Driving at low RPM or 

ground speed

Drive at a higher speed.

Insufficient warm-up at 

low ambient 

temperatures

Warm the engine at least 5 minutes. With the 

transmission in neutral, apply small amount of throttle 

in short bursts, 5 to 7 times. The belt will become more 

flexible and prevent belt burning.

Slow/easy clutch 

engagement

Use the throttle quickly and effectively.

Belt slippage from water 

or snow ingestion into 

the CVT system

Dry out the CVT (see page 75). Prevent water from 

entering the CVT inlet and outlet ducts (see page 93). 

Inspect clutch seals for damage if repeated leaking 

occurs.

Clutch malfunction

Your POLARIS dealer can assist.

Poor engine 

performance

Check for fouled plug or foreign material in gas tank or 

fuel lines. Your POLARIS dealer can assist.

Wrong or missing belt

Install the recommended belt.

Improper break-in

Always break in a new belt and/or clutch. See page 41.

104

TROUBLESHOOTING

Engine Doesn't Turn Over

Engine Turns Over, Fails to Start

Engine Backfires

Possible Cause

Solution

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

Possible Cause

Solution

Out of fuel

Refuel

Water is present in fuel

Drain the fuel system and refuel

Old/non-recommended fuel

Replace with fresh recommended fuel

Fouled/defective spark plug

Inspect plug and replace if necessary

No spark to spark plug

Inspect plug and replace if necessary

Water or fuel in crankcase

Your POLARIS dealer can assist.

Clogged fuel filter

Your POLARIS dealer can assist.

Low battery voltage

Recharge the battery to 12.8 VDC

Mechanical failure

Your POLARIS dealer can assist.

Possible Cause

Solution

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/non-recommended fuel

Replace with fresh recommended fuel

Incorrectly installed spark plug 

wires

Your POLARIS dealer can assist.

Incorrect ignition timing

Your POLARIS dealer can assist.

Mechanical failure

Your POLARIS dealer can assist.

Loose ignition connection

Check all connections and tighten

Water present in fuel

Replace with fresh recommended fuel

Exhaust system leak

Your POLARIS dealer can assist.