Polaris 2013 600 Switchback - Manual (Page 79)

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OPERATION
Throttle Lever
WARNING! An improperly functioning throttle lever may cause erratic
snowmobile behavior and loss of control, which could result in serious injury or
death. If the throttle lever does not work properly, DO NOT start the engine.
If the engine stops abruptly when the throttle lever is released:
1. Turn the ignition switch to OFF.
2. Visually inspect the throttle cable and carburetor/throttle body to
determine what caused the safety switch to activate.
3. Test the throttle lever by compressing and releasing it several times.
The lever and cable must return to the idle position quickly and
completely.
4. If the throttle lever operates properly, turn the ignition switch on and
go through normal starting procedures.
5. If the engine doesn't start, take the snowmobile to an authorized
POLARIS dealer for service.
Excessive freeplay in the throttle cable may cause the safety switch to
activate, preventing the engine from starting. If this occurs, return the
snowmobile to an authorized POLARIS dealer for service.
If an emergency exists and it's necessary to start the engine, the throttle
safety switch and engine stop switch may be disconnected from the wire
harness. When these switches are disconnected, the ignition key switch
must be used to shut off the engine. DO NOT continue to operate the
snowmobile with the throttle safety switch disconnected. Return the
snowmobile to an authorized POLARIS dealer for service as soon as
possible.