Service Air Filter; Replacing The Spark Plug; Spark Arrestor - Generac Power Systems GP3300 Owner's Manual

Maintenance
6. Dispose of used oil at a proper collection center.
Figure 14 - Oil Drain, Check & Fill

3.3.6 REPLACING THE SPARK PLUG

Use spark plug F6TC, NGK® BP6IS or Champion® RN11YC.
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 0.76 mm (0.030 in.). Install the
correctly gapped spark plug into the cylinder head and torque to
15 ft/lbs. (Figure 15).
Figure 15 - Spark Plug Gap

3.3.7 SPARK ARRESTOR

The engine exhaust muffler (CARB model) has a spark arrestor
screen. (CARB models) Inspect and clean the screen at least once
each year (Figure 16). If unit is used regularly, inspect and clean
more often.

If using the generator on any forest-covered, brush-
covered unimproved land, it must be equipped with a
spark arrestor. The spark arrestor must be maintained in
good condition by the owner/operator.
12
Clean and inspect the spark arrestor when the engine is at
ambient temperature as follows:
1. Remove the spark arrestor screen from the muffler by
loosening the clamp and removing the screw.
2. 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. A replacement
spark arrestor is available through the nearest dealer.
3. Replace the spark arrestor and secure with the clamp and
screw.
Figure 16 - Spark Arrestor

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 25 hours (Figure 17). Clean or
replace more often if operating under dusty conditions.
1. Remove air filter cover.
2. Wash in soapy water. Squeeze filter dry in clean cloth (DO NOT
TWIST).
3. Clean air filter cover before re-installing it.
Figure 17 - Air Filter
AIR FILTER
BOLT
AIR FILTER COVER