Polaris 2005 RMK 900 Owner's Manual page 71

OPERATION
Throttle Lever
WARNING
An improperly functioning throttle lever may cause erratic
machine 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 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
machine 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 machine with the throttle safety switch disconnected.
Return the machine to an authorized Polaris dealer for service as soon
as possible.
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