Baja Motorsports WR90 - Manual (Page 17)

CHECkING & CLEANING THE AIR FILTER
Take air filter out and check if it is dirty or torn.
Dismounting:
Wash filter in clean water and wipe dry with a clean cloth.
Soak filter element in clean machine oil. Squeeze it with a dry cloth to remove
excess oil.
Recommended oil: 15W/40QE
CAUTION
The air filter element must be intact or engine will suck in dust and dirt,
resulting in a shorter service life of engine.
Water should be prevented from entering into filter when washing vehicle.
The filter element should be cleaned gently without twisting to prevent it
from cracking. Never wash it with gasoline or any acid, alkaline or organic
volatile oil to avoid its aging, which will result in reducing the effect of the air
filter oil to catch particles before they enter engine. Replace filter element
with a new one if it is broken or cracked.
Air Filter cover
Removal of filter Removal of cover
Squeeze out excess
water
Wash with water
!