GAS GAS EC 250 2021 Owner's Manual page 139

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Faults
Engine does not speed up
Engine has too little power
The engine dies during the trip
Engine overheats
Possible cause
Faulty ignition
Ambient pressure is incorrectly
stored
Air filter very dirty
Fuel filter is very dirty
Fuel screen is very dirty
Error in the electronic fuel injec-
tion
Fuel supply interrupted
Exhaust system leaky, deformed
or too little glass fiber yarn filling
in main silencer
Faulty ignition
Diaphragm or reed valve housing
damaged
Ambient pressure is incorrectly
stored
Lack of fuel
The engine takes in false air
The connector or ignition coil is
loose or oxidized
Ambient pressure is incorrectly
stored
Too little coolant in cooling system –
Too little air stream
Radiator fins very dirty
Foam formation in cooling system
Damaged cylinder head or cylin-
der head gasket
Bent radiator hose
Thermostat defective
TROUBLESHOOTING 21
Action
Ignition coil - check the primary wind-
ing.
Check the spark plug connector.
Check the stator winding of the alterna-
tor.
Program ambient air pressure. (
Clean the air filter and air filter box.
(
p. 67)
Change the fuel filter.
Change the fuel screen.
(
Check wiring for damage and electrical
plug-in connectors for corrosion and dam-
age.
Read out the fault memory using the GAS-
GAS Motorcycles diagnostics tool.
Check the fuel tank breather.
Check exhaust system for damage.
Change the glass fiber yarn filling of the
main silencer.
(
p. 69)
Ignition coil - check the primary wind-
ing.
Check the spark plug connector.
Check the stator winding of the alterna-
tor.
Check the diaphragm and reed valve hous-
ing.
Program ambient air pressure. (
Refuel. (
p. 37)
Check that the intake flange is firmly
seated.
Clean the connector and treat it with con-
tact spray.
Program ambient air pressure. (
Check the cooling system for leakage.
Check the coolant level. (
Switch off engine when stationary.
Clean the radiator fins.
Drain the coolant.
(
p. 112)
Refill with coolant.
(
p. 113)
Check the cylinder head and cylinder head
gasket.
Change the radiator hose.
Check the thermostat.
Guideline
Opening temperature: 70 °C (158 °F)
p. 120)
p. 123)
p. 120)
p. 120)
p. 112)
137

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Ec 300 2021F0303u7F0403u7F0475u7

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