Operator's Manual
MC25 2-Cycle Cultivator
Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5
13
CAUTION
DO NOT TWIST AIR FILTERS WHEN CLEANING. ALWAYS
PRESS. TWISTING OR TOO MUCH FORCE CAN DAMAGE THE
FILTER ELEMENT.
Spark Plug
The recommended spark plug is a Torch L8RTC which cross
references to a Champion RCJ6Y.
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
0.028” 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.
Cooling Fins
Cooling ns, air inlets and linkages must be free from any
debris before each use.
Carburetor
Never tamper with factory setting of the carburetor.
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 lter daily in extremely dusty conditions.
To Replace or Clean Air lter, do as follows:
(Block Style Foam Filter)
1. Before removing the air lter cover, move the choke lever
to the CHOKE position. SEE FIGURE 5 ON PAGE 11
2. To remove air lter cover, squeeze the latch tab and
rotate about cover pivot point to remove from air lter
base. SEE FIGURE 8
3. Remove the foam lter element and reinforcement plate.
Replace with a new oiled foam lter or clean the original
foam lter with warm water and mild soap. SEE FIGURE 9
4. After cleaning, thoroughly oil the foam lter with 30 or 40
weight motor oil and squeeze out any excess oil before
reinstalling it. Make sure to press the foam lter evenly
into place over the lter reinforcement plate to ensure
that the foam is fully seated into its sealed position.
6. Replace the air lter cover so that it fully snaps into place
and is secured by the latch tab. Check that the cover is
securely attached by pulling slightly on the cover. If the
cover doesn’t move when pulled, it is secure.
REINFORCEMENT PLATE
FOAM
FILTER
ELEMENT
AIR FILTER
COVER
AIR FILTER BASE
FIGURE 9
LATCH TAB
RETAINER
LATCH TAB
COVER
PIVOT POINT
FIGURE 8
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