Throttle Lever; Throttle Override System (T.o.r.s.) - Yamaha VK540EK Owner's Manual

A
B
C
ESU00220

Throttle lever

Once the engine is running cleanly, squeezing a the throt-
tle lever 1 will increase the engine speed and cause
engagement of the drive system. Regulate the speed of
the snowmobile by varying the throttle position. Because
the throttle is spring-loaded, the snowmobile will deceler-
ate, and the engine will return to idle when it is released b.
WARNING
@
Check the throttle, brake, and steering for proper
operation before starting the engine.
@
ESU00252

Throttle override system (T.O.R.S.)

If the carburetor or throttle cable should malfunction dur-
ing operation, the T.O.R.S. will operate when the throttle
lever is released.
The T.O.R.S. is designed to interrupt the ignition and
stop the engine if the carburetor fails to return to idle
when the lever is released.
WARNING
@
If the T.O.R.S. is activated, make sure that the cause
of the malfunction has been corrected and that the
engine can be operated without a problem before
restarting the engine.
@
CA-04E
Mode
Item
Throttle switch
Carburetor switch
Engine
È Idling/starting
É Running
Ê Trouble
1 Carburetor switch
2 Throttle switch
3 Throttle cable
4 Throttle valve
a On
b Off
5-2
A B
Idling/
Running
starting
Off On
On Off
Run Run
C
Trouble
Off
Off
Stop