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Maintenance
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B
How to Change the Engine Oil
NOTE: Refer to Figure 11 when following the steps below:
1. Stop the engine and let it cool.
2. Disconnect spark plug wire from the spark plug.
3. Insert a flat pan under the blower, underneath the oil
drain plug and frame hole.
4. Remove oil dipstick. (See Figure 3)
5. Remove the oil drain bolt and washer.
6. Allow all oil to drain through the frame hole into the pan.
IMPORTANT: Used oil is a hazardous waste. Place oil in a
sealed container and take to your local recycling center. Do
NOT discard with household waste.
7. Replace and tighten the oil drain plug and washer.
8. To re-fill engine with oil, see engine preparation section
"How to Check Oil and Fill to Proper Level."
C
How to Clean the Air Filter
A dirty air filter will restrict air intake. Regular maintenance
of air cleaner will help improve engine performance and
reduce emissions.
WARNING
Never clean air filter with gasoline or an easy ignited sol-
vent because it may cause explosion.
IMPORTANT: Only use replacement air filter from the manu-
facturer. To order spare parts call us at 1-800-737-2112
Outer Wingnut
Washer
Air Filter Cover
Inner Wingnut
Air Filter Element
Questions? Call Toll Free at 1-800-737-2112
(Continued)
Figure 12
Drain Plug
and Washer
Frame Hole
NOTE: Refer to Figure 12 when following steps below:
1. Remove the outer wing nut, washer, and air filter cover.
2. Remove the inner wing nut, and the air filter.
IMPORTANT: Use care when removing the air filter so dirt and
debris does not fall into the carburetor.
NOTE: Air filter is made up of an outer foam element and an
inner paper element.
3. Separate the outer foam element from the inner paper
element.
4. Check the inside of the paper element for dirt or debris.
5. Check both elements for tears.
NOTE: If the inner paper element is dirty or if either element is
torn, replace with a new air filter from the manufacturer.
6. Clean the outer foam element by washing it thoroughly in
a solution of household detergent and water, or in a
nonflammable or high flash point solvent. Allow to
dry thoroughly. Then soak the foam element in clean
engine oil, and squeeze out all excess oil.
7. Clean the inner paper element by lightly tapping it
against a hard surface to remove excess dirt or by
blowing compressed air through the filter from the
inside out.
IMPORTANT: Do not attempt to brush dirt off the paper ele-
ment, as this will only embed dirt into the fibers.
8. Reinstall the cleaned out foam element onto the inner
paper element.
9. Reinstall the clean air filter and cover onto the unit by
reversing steps 1 and 2 above.
13
Copyright © 2009 MAT Engine Technologies, LLC
Figure 11
