Replacing The Spark Plug; Cleaning The Spark Arrestor Screen - Generac Power Systems GN-220 Owner's Manual

Figure 8 - Air Cleaner Components
PAPER
FILTER
3. To clean or replace the foam pre-filter:
A. Wash the pre-filter in soapy water.
B. Squeeze the pre-filter dry with a clean cloth.
DO NOT TWIST.
If the filter is too dirty, replace it with a new
one. Dispose of the old filter properly.
C. Apply enough clean engine oil to saturate the
pre-filter.
D. Wrap the pre-filter in a clean dry cloth and
squeeze out the excess oil. DO NOT TWIST.
Set the pre-filter aside.
4. To clean or replace the paper air filter:
A. Clean the air filter by tapping it gently on a
solid surface.
If the filter is too dirty, replace it with a new
one. Dispose of the old filter properly.
5. Clean the air cleaner cover.
6. Insert the pre-filter into the cover, then the paper
air filter (see Figure 8).
7. Reinstall the air cleaner cover and tighten the two
(2) screws (see Figure 8).
ReplaCing The spaRk plug

Replace spark plug with Generac P/N 0E7585. The
correct air gap is 0.76mm (0.030 in.). Replace the
plug every 100 hours of operation or once each year,
whichever comes first. This will help the engine to
start easier and run better.
1. Stop the engine and pull the spark plug wire off of
the spark plug.

section 3 — Maintenance
gsh-220 engine
FOAM
PRE-FILTER
COVER
SCREWS
NOTE:
NOTE:
2. Clean around the spark plug and remove it from
the cylinder head.
3. Set the spark plug gap (Figure 9) to 0.76mm
(0.030 in.). Install a correctly gapped spark plug
into the cylinder head.
Figure 9 - Setting Spark Plug Gap
SET PLUG GAP AT 0.76 mm
(0.030 inch)
Figure 10 - Spark Arrestor
HEAT SHIELD
Cleaning The spaRk aRResToR sCReen

The engine exhaust muffler may be equipped with a
spark arrestor screen. Inspect and clean the screen
every 100 hours of operation or once each year,
whichever comes first.
If using the engine on any forest-covered,
brush-covered or grass-covered unimproved
land, it must have a spark arrestor. The spark
arrestor must be maintained in good condition
by the owner/operator.
SPARK ARRESTOR
SCREEN P/N 083083
NOTE: