Engine Overheating Prevention System; Throttle Override System (T.o.r.s.) - Yamaha VK10X Owner's Manual

1. Throttle lever
EWS00030
WARNING
Check the throttle, brake, and steering for
proper operation before starting the en-
gine. (See page 26.)
ESU10321
Engine overheating prevention
system
This model is equipped with a system, which
prevents overheating when the engine is
idling.
When the engine has been idling for 3 min-
utes or longer and the coolant temperature
has risen above 100 °C (212 °F), the engine
automatically stops to prevent overheating.
NOTE:
The engine can be started after it stops.
ESU10331
Throttle override system
(T.O.R.S.)
EWS00040
WARNING
If the T.O.R.S. is activated, make sure
G
that the cause of the malfunction has
been corrected and that the engine can
be operated without a problem before
restarting the engine.
Be sure to use the specified spark plug
G
and spark plug cap. Otherwise, the
T.O.R.S. will not work properly.
Control functions
If the carburetors or throttle cable malfunc-
tions during operation, the T.O.R.S. will oper-
ate when the throttle lever is released.
The T.O.R.S. is designed to override the igni-
tion and limit the engine speed to less than the
clutch engagement speed if the carburetors
fail to return to the idle position when the throt-
tle lever is released. (See page 72 for the
clutch engagement speed.)
Idling /
starting
Throttle
Off
switch
Throttle
position Closed
sensor
Engine Run
Idling / starting
1. Throttle position sensor (throttle valve
closed position)
2. Throttle cable
3. Throttle switch (off)
Running Trouble
On Off
Open Open
T.O.R.S.
Run will oper-
ate.
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