Snowmobile Polaris 600 RMK / 600 PRO RMK / 800 RMK / 800 PRO RMK / 800 RMK Assault. Manual - part 7

30

FEATURES

Accessories

POLARIS offers a wide range of accessories for your snowmobile to 
help make each ride more enjoyable.

Use only POLARIS parts and accessories on your POLARIS snowmo-
bile. Use of unapproved parts and accessories may result in:

• Non-compliance with government/industry requirements
• Voiding of warranty
• Injury to self or others

This applies, but is not limited to the following areas: brakes, clutches, 
fuel systems, and exhaust systems. Exhaust systems are critical safety 
areas that must use approved POLARIS parts. Please see your 
POLARIS dealer for service.

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FEATURES

Fuel Type Selection

Whenever using ethanol, MTBE or other forms of oxygenated gaso-
lines, the fuel type designation setting must be changed to “Eth” in the 
gauge. When using the recommended 91 non-ethanol gasoline, always 
select the “91-non” setting.

Whenever in doubt of your fuel 
purchase, use the “Eth” setting as 
a safeguard.

Use the following procedure to 
change the fuel type designation in 
the gauge. Refer to the fuel type 
selection label located inside the 
left side panel.

1. Start the engine.

2. Lock the parking brake.

3. Press and release the 

SELECT button or SET 
switch until “FUEL” is dis-
played in the lower section of 
the gauge.

4. Press and hold the SELECT button or SET switch until the desired 

fuel type is displayed in the center of the screen.

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FEATURES

Detonation Elimination Technology (DET)

The DET system prevents damage to the engine from detonation by 
going into an engine protection mode whenever the DET system is 
active.

When excessive detonation is detected, 
the check engine light will illuminate and 
you may notice decreased engine perfor-
mance and RPM when the DET system is 
activated. In most cases this is temporary 
and the operator does not need to take 
any action. The engine will return to its 
normal performance automatically.

If severe detonation occurs, the check engine light will begin to flash 
steadily and the gauge indicator will read “dET” (see illustration). The 
engine will enter a limp home mode and RPM will be limited to 6500 
RPM. The engine will remain in this mode until it is shut down and 
restarted.

Check Engine Light

Indicates

Solid or Flickering

Excessive detonation detected

Steady Flashing

Severe detonation detected, RPM will be limited

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FEATURES

Detonation Elimination Technology (DET)

The most likely causes of severe detonation are outlined in the trouble-
shooting table below.

DET Troubleshooting

Security System (Ignition Lock System)

Your snowmobile has an optional security function that can be activated 
by an authorized POLARIS dealer. If you have this feature activated, 
you can lock the ignition to prevent unauthorized use when leaving the 
snowmobile unattended. A locked system will limit engine speed to 
3000 RPM, which prevents clutch engagement, and the snowmobile 
will not move when throttle is applied.

If you wish to use this system, see page 41 of the Instrument Cluster 
section for security system activation and operating instructions.

Cause of DET Activation

Solution

Poor quality fuel

Replace with higher quality fuel

Incorrect ethanol/non-ethanol fuel 

resistor installed

Verify correct fuel resistor for fuel type 

in tank

Low fuel/no fuel in tank

Refuel with recommended fuel

Water in fuel

Replace with recommended fuel

Plugged fuel filter or tank pick-up sock See your POLARIS dealer for service

Alcohol-based fuel additive used with 

Ethanol fuel

Do not add deicers or additives that 
contain any form of alcohol while 
using up to 10% Ethanol fuel

Improper engine modifications

Do not modify the engine