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Control functions
11
ESU10292
Main switch
The main switch controls the ignition and
lighting systems. The various positions are
described below.
Off
The ignition circuit is switched off.
The key can be removed only in this position.
On
The ignition circuit is switched on.
Start
The starting circuit is switched on.
The starter motor cranks the engine.
NOTICE: Release the switch immediately
after the engine starts.
[ECS00021]
TIP
The headlights and taillight come on after the
engine is started.
ESU10312
Throttle lever
Once the engine is running cleanly, squeez-
ing the throttle lever will increase the engine
speed and cause engagement of the drive
train. 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.
ESU10346
Throttle override system
(T.O.R.S.)
WARNING
EWS00041
If the T.O.R.S. is activated, make sure that
the cause of the malfunction has been cor-
rected and that the engine can be operated
without a problem before restarting the
engine. Continuing to operate with a mal-
function could cause loss of control or
damage.
If the throttle valves or throttle cable malfunc-
tions during operation, the T.O.R.S. will be ac-
tivated when the throttle lever is released.
The T.O.R.S. is designed to override the fuel
injection and limit the engine speed to less
than the clutch engagement speed if the throt-
tle valves fail to return to the idle position
when the throttle lever is released. (See page
84 for the clutch engagement speed.)
1. Off
2. On
3. Start
13
2
1. Throttle lever
Idling Riding
Malfunc-
tion
Throttle
lever
Released Squeezed Released
Throttle
valve
Closed Open Open
T.O.R.S.
Engine
runs
properly.
Engine
runs
properly.
T.O.R.S.
will be ac-
tivated.
U8FP15E0.book Page 11 Thursday, July 23, 2009 11:01 AM