Remove spark plug using spark plug
wrench.
Inspect the spark plug. Replace it if
the electrode is worn or fouled, or if
the insulator is cracked or chipped.
Measure the spark plug electrode
gap with a wire-type feeler gauge.
Correct the gap, if necessary, by
carefully bending the side electrode.
The gap should be:
0.028-0.031 in (0.7-0.8mm)
Seat spark plug in position; thread in
by hand to prevent cross-threading.
If reinstalling a used spark plug,
tighten 1/8-1/4 turn after the spark
plug seats.
If installing a new spark plug, tighten
1/2 turn after the spark plug seats.
NOTE:
An improperly tightened
spark plug will become very hot and
could damage the engine.
MAINTENANCE
NOTICE:
Be careful not to cross-thread the
spark plug. Cross-threading will
seriously damage the product.
SPARK ARRESTER SERVICE
The spark arrester must be serviced
every 100 hours to keep it functioning as
designed.
If the engine has been running, the
muffler will be very hot. Allow the muffler
to cool before servicing spark arrester.
Remove the two screws, and remove
the tail pipe and spark arrester.
Use a brush to remove carbon
deposits from the spark arrester
screen. Be careful to avoid damaging
the screen.
The spark arrester must be free of
breaks and tears. Replace the spark
arrester if it is damaged.
31
A - Spark plug
B - Spark plug cap
A
B
SPARK PLUG REPLACEMENT
The spark plug must be properly gapped
and free of deposits in order to ensure
proper engine operation. If the engine is
hot, allow it to cool before servicing the
spark plug.
Loosen the screws at the side of the
right maintenance cover. Remove
cover and set aside.
Remove the spark plug cap.
Clean any dirt from around base of
spark plug.
Attach the spark plug cap.
Close the right maintenance cover.
Recommend spark plug.
0.7 - 0.8 mm
0.028 - 0.031 in.
A-iPower Corp. 10887 Commerce Way Unit A Fontana, CA 92337 USA
www.a-ipower.com 1-855-888-3598 or [email protected].
