Step 1: Ensure the engine is OFF and the engine safety starting switch is
disconnected. Be certain that the throttle/shift control lever is in
neutral. The engine must be cool.
Step 2: Carefullyremovetheflamearrestorfromthebackoftheengine
using a screwdriver on the clamp screw.
Step 3: Tap the element to dislodge any large embedded dirt and then
gently brush with a soft bristle brush.
Note: Do not use gasoline, steam, caustic cleaning
solution, strong detergent, high-pressure car wash or parts
cleaning solvents. Any of these can harm the cotton fi lter me-
dia, as well as shrink and harden the rubber end caps.
Step 4: EithersprayonK&Nairltercleanerorallowtheairltertosoak
inapanlledwithairltercleaner.Allowthecleanertoworkfor
approximately 10 minutes.
Step 5: Rinseoffthelterwithlow-pressurewater.Tapwaterisokay.Al-
waysflushfromthecleansidetothedirtyside.Thisremovesthe
dirtanddoesnotdriveitintothelter.
Step 6: Always dry naturally. After rinsing, shake off all excess water and
let the element dry naturally.
Note: Do not use compressed air, open fl ame nor heat
dryers. Excess heat will shrink the cotton fi lter media. Com-
pressed air will blow holes in the element.
Step 7: Aftercleaningtheairlter,alwaysre-oilbeforeusing.SprayK&N
airlteroildownintoeachpleatwithonepassperpleat.Wait
10 minutes and re-oil any white spots still showing. Or use the oil
from a squeeze bottle, down into the bottom and along each pleat
with just one pass in each pleat. Let the oil work into the cotton for
20 minutes. Re-oil any white spots still showing.
Note: Never use the K&N air fi lter without oil. The fi l-
ter will not stop the dirt without the oil. Red dye is added to
K&N air fi lter oil to assist in determining whether you have
complete coverage after application. Never use automatic
transmission fl uid, motor oil, diesel fuel, WD-40, LPS or other
lightweight oils for this purpose.
Step 8: Re-install. Make sure the element seats properly before tightening
the clamp screw.
MasterCraft recommends that your annual—or 100
hour—maintenance requirements be performed by
your MasterCraft dealer. The staff there has the
proper equipment and technical training to best
meet your service needs.
2007 MasterCraft Owners Manual - Page 15-11