Removing the air filter element (see Replacing the Air Filter Element).
Use pliers to loosen the clamp securing the crankcase ventilation hose to the air filter housing pipe..
... and remove the hose.
A flame arrester is installed in the pipe of the air filter housing.
Use pliers to loosen the hot air intake hose clamp..
... and disconnect the hose from the lower pipe of the thermostat.
key «for 8» unscrew the four self-locking nuts securing the air filter housing...
... and remove the pressure plate.
Remove the air filter housing assembly with the thermostat.
Install the air filter housing in reverse order.