2005 Yamaha Motorsports VK 540 lll Owners Manual - Page 18

2005 Yamaha Motorsports VK 540 lll Manual

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ESU00220 Throttle lever Once the engine is running cleanly, squeezing a the throttle 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 decelerate, 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 during 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. A 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 B Mode A Item Throttle switch Carburetor switch Engine Idling/ starting Off On Run B Running On Off Run C Trouble Off Off Stop C È É Ê 1 2 3 4 a b Idling/starting Running Trouble Carburetor switch Throttle switch Throttle cable Throttle valve On Off 5-2

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5-2
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
È
Idling/starting
É
Running
Ê
Trouble
1
Carburetor switch
2
Throttle switch
3
Throttle cable
4
Throttle valve
a
On
b
Off
A
B
C
Mode
Item
Idling/
starting
Running
Trouble
Throttle switch
Off
On
Off
Carburetor switch
On
Off
Off
Engine
Run
Run
Stop
A
B
C