2006-2009 Suzuki LT-Z50 QuadSport ATV Factory Service Manual, Page 17Get this manual
PERIODIC MAINTENANCE
Fill container with non-flammable cleaning solvent Immerse the air cleaner element in the cleaning solvent and wash it Squeeze the cleaning solvent out of the washed element by pressing it between the palms of both hands: do not twist or wring the element or it will develop tears Immerse the element in motor oil and squeeze the oil out of the element leaving it slightly wet with oil