Bennche Bighorn 400 Owner's Manual page 126

1. Air filter check hose
1. Remove the seats. (See pages 4-18 for
seat removal)
2. Remove the Engine cover.
3. Remove the connecting rubber tube
between air cleaner and throttle valve
and the screws fixing the air cleaner, and
then remove the air cleaner.
Periodic Maintenance and Adjustment
1. Holder (×3)
4. Remove the air filter element.
5. Remove the sponge material from its
frame.
2. Air filter case cover
8-26