Replacing The Spark Plug; Battery Replacement (If Applicable); Spark Arrestor - Generac Portable Products GP Series Owner's Manual

3.4.6 REPLACING THE SPARK PLUG

See Engine Specifications for recommended spark plug. 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. Install the correctly
gapped spark plug into the cylinder head (Figure 14).
Figure 14 - Spark Plug Gap

3.4.7 BATTERY REPLACEMENT (IF APPLICABLE)

The battery shipped with the generator has been fully charged.
A battery may lose some of its charge when not in use for
prolonged periods of time. If the battery is unable to crank the
engine, plug in the 12V charger included in the accessory box
(see the Charging a Battery section). RUNNING THE GENERATOR
DOES NOT CHARGE THE BATTERY. The part number for this
battery is 0G9449.
The NEGATIVE battery terminal should:

1. Always be DISCONNECTED FIRST.
2. Always be CONNECTED LAST.
Figure 15 - Battery Connections
RED (+)
BLACK (-)
NOTE:

3.4.8 SPARK ARRESTOR

The engine exhaust muffler has a spark arrestor screen. Inspect
and clean the screen at least once each year (Figures 16 and 17).
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:
1. Remove clamp and spark arrestor from muffler.
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.
3. Replace the spark arrestor and clamp.
Figure 16 – Spark Arrestor GP5000/GP6000E/GP6500E
Figure 17 - Spark Arrestor GP2600/GP2800
Maintenance
NOTICE:
Cone
Spark Arrestor
Screen
Arrestor Screen
Screw Clamp
Cone
Clamp
Spark Arrestor
Screen
15