Triumph Rocket III Classic Service Manual page 350

Fuel System/Engine Management
Fault Finding - Non Electrical
Symptom
Poor throttle response at low RPM
Cutting out at idle
Idle speed too low/high
Possible cause(s)
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
ISC (Idle Speed Controll actuator inoperative
Low fuel pressure caused by loose fuel pipes to the fuel
pump and filter
Low fuel pressure
Weak mixture caused by air leak at the throttle body/
transition piece to cylinder head face
ISC (Idle Speed Controll actuator sticking
Incorrect closed throttle position setting
Mechanical fault with the throttle linkage
Diagnostic tool malfunctions during tune download Low battery voltage
procedure
Throttle hang-up
Bike will start but cuts out immediately
Abnormally high fuel pressure
Temperature gauge reads cooler than normal
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
ISC motor stuck
Fuel pressure regulator inoperative
Cooling system air-locked resulting in coolant
temperature sensor operating in air instead of coolant
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Service Manual - Rocket III I Classic I Touring
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