Replacing The Spark Plug; Service Air Filter; Clean Spark Arrestor Screen - Generac Portable Products 005698-0 Manual

Whenever possible, run engine for approximately five (5)
minutes to get the engine oil hot. This will aid in draining the
oil.
Use the following instructions to change the oil while the engine
is still warm:
• Clean area around oil drain plug.
• Remove oil drain plug from engine and oil fill plug to drain oil
completely into a suitable container.
• When oil has completely drained, install oil drain plug and
tighten securely.
• Fill oil sump with recommended oil. (See "Before Starting the
Generator" for oil recommendations).
• Wipe up any spilled oil.
• Dispose of used oil at a proper collection center.

3.3.6 REPLACING THE SPARK PLUG

Use Champion RN9YC spark plug or equivalent. Replace the plug
once each year. This will help the 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 0.70-0.80 mm (0.028-0.031 in.).
Install the correctly gapped spark plug into the cylinder head
(Figure 13).
Figure 13 - Spark Plug Gap

3.4 SERVICE AIR FILTER

The engine will not run properly and may be damaged if using a
dirty air filter. Clean the air filter every 200 hours or once a year
(Figure 14). Clean or replace more often if operating under dusty
conditions.
• Remove air filter cover.
• Wash in soapy water. Squeeze filter dry in clean cloth (DO NOT
TWIST).
• Clean air filter cover before re-installing it.
To order a new air filter, please contact the nearest authorized
service center at 1-888-436-3722.
NOTE:
NOTE:
Figure 14 - Air Filter

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 (Figure 18). If unit is
used regularly, inspect and clean more often.
If using the 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 clamp, spark arrestor and inner screen from muffler.
• 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 inner screen, spark arrestor and clamp.
Figure 18 - Spark Arrestor
Maintenance
NOTE:
11