Polaris 900 RMK - Manual (Page 73)

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OPERATION
Electronic Reverse (PERCt)
Electronic reverse will activate only if the engine RPM is below 4000.
WARNING
Improper reverse operation, even at low speeds, may cause loss
of control, resulting in serious injury or death. Damage will occur
to the chaincase or transmission if shifting is attempted when the
engine is operating above idle speed.
S
Shift to or from reverse only when the snowmobile is stopped
and when engine speed is at idle.
S
Look behind the vehicle before and while backing.
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Avoid sharp turns.
S
Apply throttle slowly.
Engaging Reverse
1. Stop the snowmobile and leave the engine idling.
2. Make sure the area behind your vehicle is clear.
3. Push the yellow reverse button on the left-hand control for one
second, then release. The engine will automatically reduce RPM
and start a reverse rotation. A flashing reverse light on the
instrument panel will indicate that the machine is in reverse.
4. Apply the throttle slowly to make sure the machine is in reverse.
NOTE: The maximum engine RPM will be 6000 when in reverse.
NOTE: If the engine stops running, the snowmobile will be in forward
gear when it’s restarted.
Disengaging Reverse
1. Stop the snowmobile and leave the engine idling.
2. Push the yellow reverse button for one second and release. The
engine will slow and and begin to rotate forward. The light on the
instrument panel will shut off.
3. Apply the throttle slowly to make sure the machine is in forward.