E-TON Viper 90R Owner's Manual page 103

7. Install the sponge materials onto the air filter
element holder.
8. Place the air filter elements in the original position,
and then install the screw.
9. Install the air filter case covers by installing the
bolts.
TIP
The air filter elements should be cleaned every 20–
40 hours. It should be cleaned and lubricated more
often if the ATV is operated in extremely dusty ar-
eas. Each time the air filter elements maintenance
is performed, check the air inlet of the air filter case
for obstructions.
NOTICE
Make sure that the air filter elements is prop-
erly seated in the air filter case.
Never operate the engine with the air filter el-
ements removed. This will allow unfiltered air
to enter the engine, causing rapid engine wear
and possible engine damage. Additionally,
operation without the air filter elements will
affect carburetor jetting with subsequent poor
performance and possible engine overheating.
This model is equipped with two air filter
elements: one located on the left side and one
located on the right side of the air box.
8-18
8