Fault Finding – Non Electrical

Symptom

Possible cause(s)

Poor throttle response at low rpm

Low fuel pressure caused by filter blockage/leaks

Low fuel pressure caused by loose fuel pipes to the fuel pump and filter

Cutting out at idle

Throttle bodies out of balance

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

Diagnostic software malfunctions during tune download procedure

Low battery voltage

Throttle hang-up

Incorrect closed throttle position setting

Motorcycle will start but cuts out immediately

Low fuel pressure caused by loose fuel pipes to the fuel pump and filter

Low fuel pressure caused by filter blockage/leaks

Abnormally high fuel pressure

Fuel pressure regulator inoperative

Temperature gauge reads cooler than normal

Cooling system air–locked resulting in coolant temperature sensor operating in air instead of coolant

Thermostat fault

Motorcycle will not start

Check the immobiliser system for faults

Make sure that the keys, Engine ECM and Chassis ECM are all correctly paired