The air filter is equipped with a thermostat. To replace the air filter element, unscrew the wing nut of the filter cover, remove the cover and take out the used replacement element. Reassemble in reverse order.
To completely remove the air filter, remove the air hose clamp from the intake air duct in the carburetor, remove the band clamp, and disconnect the warm air hose from the filter. Take out the air filter. Install in reverse order.
The air filter element must be changed every 20,000 km.