TIIUPIE
Fault Finding - Non Electrical
Symptom
Poor throttle response at low Rpm
Cutting out at idle
Poor response to C.O. adjustment when using the
Actia Diagnostic Tool
Rev limitation cutting in too early
Tick over too low/high
Actia tool malfunctions during tune download
procedure
Throttle hang—up
Bike will start but cuts out immediately
Abnormally high fuel pressure
Temperature gauge reads cold
FUEL SYSTEM/ENGINE MANAGEMENT 9
Possible cause(s)
Excessively low/high C.O. setting
One way valve inside pipe from throttle bodies to
IACV (Idle Air Control Valve) sticking or damaged
Low fuel pressure caused by filter blockage/leaks
Low fuel pressure caused by loose fuel pipes to
the fuel pump and filter
Throttle bodies out of balance
IACV (Idle Air Control Valve) inoperative
Low fuel pressure caused by loose fuel pipes to
the fuel pump and filter.
Excessively low/high C.O. setting
Low fuel pressure
Weak mixture caused by air leak at the throttle
body gasket to cyl. head face
Low fuel pressure caused by loose fuel pipes to
the fuel pump and filter.
One way valve inside pipe from throttle bodies to
IACV (Idle Air Control Valve) sticking
Crankshaft sensor air gap to wide
IACV (Idle Air Control Valve) sticking
Incorrect closed throttle position setting
Mechanical fault with the throttle linkage
Low battery voltage
Incorrect closed throttle position setting
Low fuel pressure caused by loose fuel pipes to
the fuel pump and filter.
Low fuel pressure due to split fuel filter
IACV Stepper Motor stuck
One way valve inside pipe from throttle bodies to
IACV (Idle Air Control Valve) sticking
Fuel pressure regulator inoperative.
Cooling system air-locked resulting in coolant
temperature sensor operating in air instead of
9.75
coolant.