Snowmobile Yamaha Phazer PZ50 (2007-2008 year). Manual - part 74
8-8
–
+
ELEC
THROTTLE OVERRIDE SYSTEM (T.O.R.S.)
If the throttle bodies or throttle cable malfunctions
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 fuel injec-
tion and keep the engine speed between 2,800 and
3,000 r/min if the throttle valves fail to return to the
idle position when the throttle 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.
• Be sure to use the specified spark plug and
spark plug cap. Otherwise, the T.O.R.S. will
not work properly.
È Idling/starting
É Running
Ê Trouble
1 Throttle position sensor (throttle valve position)
2 Throttle switch
3 Throttle cable
a On
b Off
c Open
d Closed
NOTE:
• When the T.O.R.S. is activated, the warning light
4 and self-diagnosis warning indicator 5 will
flash and the two-digit code “84” 6 will flash in
the clock display.
• The T.O.R.S. monitors the condition of the throt-
tle position sensor, speedometer assembly, and
speed sensor, and will operate if any of the moni-
tored items is disconnected or malfunctioning.
Mode
È
Idling/
starting
É
Running
Ê
Trouble
Item
Throttle switch
Off
On
Off
Throttle posi-
tion sensor
Closed
Open
Open
Engine
Run
Run
T.O.R.S. will
operate
3
2 b
1
d
È
1
c
2 a
É
2 b
1
c
Ê
4
6
5