EarthQuake MC43 Operator's Manual - Important
OPERATOR INSTRUCTIONS ANd PARTS
MC43E & MC43 Mini Cultivator
Page 15
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ENGINE MAINTENANCE
Cooling Fins
Cooling fins, air inlets and linkages must be free from any
debris before each use.
Air Filter
Never run engine without air cleaner properly installed.
Added wear and engine failure may occur if air cleaner is
not installed on engine.
Service air cleaner every 3 months or after 20 hours of
operation.
Clean filter daily in extremely dusty condi-
tions.
Steps for Cleaning Air Filter
1. Wash in warm water with liquid detergent and water until
dirt and debris are removed. Press filter when washing,
do not twist.
2. Rinse in warm water until soap and dirt are removed.
3. Dry filter by wrapping in a clean cloth and pressing filter
until it is dry.
4. Apply a lightweight motor oil or thin based machine oil
to the entire filter.
5. Remove excess oil.
6. Attach the filter and air cleaner cover to the engine.
Spark Plug
The recommended spark plug is a NGK BM6A which cross
references to a Champion CJ8.
1. Check spark plug at the beginning of each season.
2. Disconnect the spark plug cap, and clean any debris
from around the spark plug area.
3. Remove spark plug and replace if any of the following
occur; pitted electrodes, burned electrodes, cracked
porcelain, or deposits around electrodes.
4. After analysis, seat spark plug and tighten with spark
plug wrench. Reconnect the spark plug wire.
• Reinstall original spark plug, tighten additional 1/2
turn.
• Installing new spark plug, adjust spark plug gap to .028”
and tighten additional 1/8 – 1/4 turn .
note: loose spark plug may overheat and damage
engine. over tightened spark plug may damage threads
in the cylinder head.
Carburetor
Never tamper with factory setting of the carburetor.
IMPORTANT
NEVER TWIST AIR FILTERS WhEN CLEANING.
ALWAYS PRESS.
TINE REMOVAL ANd INSTALLATION
To Remove Tines
1. Remove the cotter pins from each end of the tine
shaft.
2. Slide the four tines off the shaft.
To Install Tines
1. First slide the inside tines onto each end of the tine
shaft. One inside tine is stamped with a “B” and the
other is stamped with a “C”.
2. Slide the outside tine “A” and tine “D” onto each end
of the shaft next. The tines should be installed in the
correct order so that they are positioned left to right
A, B, C, D, as viewed from the user’s position on the
mini cultivator. Make sure that the hub collars on both
the right and left pairs of tines face each other so that
there is adequate spacing between the tine blades.
SEE FIGURE .
3. Insert the cotter pins into the holes at each end of the
tine shaft to lock the tines into place.
FIGURE (Frontal View)