Motorcycle engine cooling system Honda CRF1000L Africa Twin (2015-2020)

Service information — cooling system
General Warning: Removing the radiator cap while the engine is hot can allow the coolant to spray out, seriously scalding you. Always let the engine and radiator cool down before removing the radiator cap. Notice: Using coolant with silicate...

Troubleshooting — cooling system
Engine temperature too high Faulty temperature gauge or ECT sensor Thermostat stuck closed Faulty radiator cap Insufficient coolant Passage blocked in radiator, hoses or water jacket Air in system Faulty cooling fan motor Faulty fan control relay...

System flow pattern — cooling system
System flow pattern CRF1000D shown

Radiator cap/system pressure inspection
Radiator cap/system pressure inspection Remove the right middle cowl (page 2-6). Remove the radiator cap [1]. Wet the sealing surfaces of the cap, then install the cap onto the tester [1]. Pressure test the radiator cap. Replace the radiator cap if...

Coolant replacement
Replacement/air bleeding Note: When filling the system or reserve tank with coolant or checking the coolant level, place the motorcycle in an upright position on a flat, level surface. Remove the radiator cap (page 8-4). CRF1000D: Remove the EOP...

Thermostat — removal/installation
Removal/installation Drain the coolant (page 8-4). Disconnect the upper radiator hose [1] by loosening the hose band screw [2]. Remove the bolts [3] and thermostat cover [4]. Remove the thermostat [1] from the upper crankcase. Installation is in the...

Radiator — removal/installation
Removal/installation Left radiator Drain the coolant (page 8-4). Remove the left inner cover (page 2-8). Remove the horn (page 22-28). Remove the bolts [1], washers [2], and wire clamp [3]. Release the connector clip [1] from the radiator shroud....

Radiator reserve tank — removal/installation
Remove the shock absorber (page 18-8). Remove the rear wheel (page 18-4). Remove the radiator reserve tank mounting bolt [1]. Remove the radiator reserve tank [2] by releasing the boss [3] from the frame. Disconnect the siphon hose [4] and drain the...

Water pump — removal/installation
Mechanical seal inspection Check the bleed pipe [1] of the water pump for signs of coolant leakage. Note: A small amount of coolant weeping from the bleed pipe is normal. Make sure that there is no continuous coolant leakage from the bleed pipe...

Fan control relay — removal/installation
Removal/installation Remove the pillion seat (page 2-11). Release the fan control relay [1] and cover [2]. Remove the relay cover and disconnect the relay from the relay connector. Installation is in the reverse order of removal. Relay inspection...