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3.3.6 REPLACING THE SPARK PLUG
Use Champion RC14YC spark plug or equivalent. The correct air
gap is 1.01 mm (0.040 in.). Replace the plug once each year.
This will help your engine start easier and run better.
1. Stop the engine and pull the spark plug wire off of the spark
plug.
2. Clean the area around the spark plug and remove it from the
cylinder head.
3. Set the spark plug's gap to 1.01 mm (0.040 in.). Install the
correctly gapped spark plug into the cylinder head.
Figure 18 - Spark Plug Gap
3.4 SERVICE AIR CLEANER
Your engine will not run properly and may be damaged if you run
it using a dirty air cleaner. Clean or replace the air cleaner paper
filter once a year. Clean or replace more often if operating under
dusty conditions. Clean foam pre-cleaner every month or more
often under dusty conditions.
Figure 20 - Air Cleaner
To clean or replace foam pre-cleaner:
• Remove air cleaner cover, then foam pre-filter.
• Wash pre-cleaner in soapy water. Squeeze pre-filter dry in
clean cloth (DO NOT TWIST).
• Clean air cleaner cover before re-installing it.
To clean or replace paper air filter:
• Remove air cleaner cover; then remove foam pre-filter (service
if necessary) and remove paper filter.
• Clean paper 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.
• Clean air cleaner cover then slip pre-cleaner over filter. Next
insert new paper filter into the base of the air cleaner. Re-
install air cleaner cover.
Note: To order a new air filter, please contact the nearest
authorized service center at 1-800-333-1322.
3.5 CLEAN SPARK ARRESTOR SCREEN
The engine exhaust muffler has a spark arrestor screen. Inspect
and clean the screen at least once each year. If unit is used
regularly, inspect and clean more often.
NOTE: If you use your generator on any forest-covered, brush-
covered or grass-covered unimproved land, it must equipped
with a spark arrestor. The spark arrestor must be maintained in
good condition by the owner/operator.
Clean and inspect the spark arrestor as follows:
• Remove the screen retaining bracket by removing the screw.
• Slide the spark arrestor screen out from the tail pipe.
• Inspect screen and replace if torn, perforated or otherwise
damaged. DO NOT USE a defective screen. If screen is not
damaged, clean it with commercial solvent.
• Replace the screen and the retaining bracket.
Pre-Cleaner
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Section 3 — Maintenance
Residential Portable Generator System
16