What would cause the engine to rev full throttle when position is at idle on a polaris magnum 325?

* Idle speed adjustment screw: The idle speed adjustment screw is located on the carburetor and controls the amount of air that bypasses the throttle plate when the throttle is closed. If the idle speed adjustment screw is turned out too far, it can cause the engine to rev full throttle when the throttle is at idle.

* Throttle cable: The throttle cable connects the throttle lever on the handlebars to the carburetor. If the throttle cable is too tight, it can cause the throttle to stick open, which can also cause the engine to rev full throttle when the throttle is at idle.

* Carburetor: The carburetor is responsible for mixing air and fuel and delivering it to the engine. If the carburetor is dirty or damaged, it can cause the engine to run rich or lean, which can also lead to the engine revving full throttle when the throttle is at idle.

* Intake manifold gasket: The intake manifold gasket seals the intake manifold to the cylinder head. If the intake manifold gasket is leaking, it can cause the engine to run lean, which can also lead to the engine revving full throttle when the throttle is at idle.

* Spark plug: The spark plug is responsible for igniting the air/fuel mixture in the cylinder. If the spark plug is worn out or damaged, it can cause the engine to run rough and may also cause the engine to rev full throttle when the throttle is at idle.