Yamaha FX Nytro FX10X, Service Manual

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8-4
– +
ELEC
IGNITION SYSTEM
Is self-diagnosis code 15, 16, or 42 displayed?
Has throttle body icing occurred or is foreign
material stuck in the throttle body?
Is the throttle switch malfunctioning?
Is the throttle cable free play out of specification?
Was the engine revved with the V-belt removed?
Is the throttle position sensor, speedometer unit, or
speed sensor installed incorrectly?
Correct the connection and/or replace the
speedometer unit and/or ECU.
T.O.R.S. OPERATES.
NO
YES Check the affected item(s).
NO
YES Perform throttle body maintenance.
NO
YES Repair or replace the right handlebar switch.
NO
YES
Adjust the throttle cable free play.
Refer to “THROTTLE CABLE FREE PLAY
ADJUSTMENT” in CHAPTER 2.
NO
YES When the engine is revved with the V-belt
removed, the speed sensor is diagnosed as mal-
functioning and T.O.R.S. operates.
NO
YES
Install correctly.
1
2
3
4
5
6
7
9
8
1 Crankshaft position sensor
2
Engine speed
3 ECU (engine control unit)
4
Ignition
5 Throttle position sensor
6
Throttle switch
7 Speed
8
Speed sensor
9 Speedometer unit