2
This engine meets the 1998 and later California
emissions regulations. To ensure that the engine
continues to meet these regulations, refer to the
following information and instructions in this
owner’s manual.
When ordering engine components, provide the
authorized service dealer with the engine identifica-
tion number, which is located on the engine identifi-
cation decal. See the illustration below for the loca-
tion of the decal.
OIL AND FUEL INFORMATION
NOTE:
Be sure to read these instructions carefully
before attempting to start or operate this
equipment. Using old or improper oil or fuel
can cause engine damage.
Any attempt to crank or start the engine before
it has been properly serviced with the recom-
mended oil may result in engine damage.
RECOMMENDED OIL TYPE
Using the proper type and weight of oil in the crank-
case is extremely important. Check the oil before
each use and change the oil regularly. Failure to use
the correct oil, or using dirty oil, can cause prema-
ture engine wear and failure.
Use only high quality detergent oil rated with API ser-
vice classification SF, SG or SH. The recommended
oil weights include the following:
• During summer months: SAE 30. An acceptable
substitute is SAE 10W-30.
• During winter months: SAE 5W-30 or 0W-30. DO
NOT USE SAE 10W-40.
The crankcase oil capacity is about 51 oz. (1500 ml)
with the oil filter. Without the filter, the oil capac-
ity is 46 oz. (1360 ml). Use no special additives.
Make sure that the unit is level when filling with oil.
DO NOT OVERFILL.
RECOMMENDED FUEL TYPE
Use clean, fresh, regular UNLEADED gasoline with
this engine.
Do not overfill the fuel tank. Always allow room
for fuel expansion.
Never fill the fuel tank indoors. OR when the
engine is running or hot. Do not light a cigarette
or smoke when filling the fuel tank.
ENGINE EMISSION COMPLIANCE PERIOD
For nonhandheld engines: The Emissions Compliance
Period referred to on the Emissions Compliance label
indicates the number of operating hours for which
the engine has been shown to meet Federal emission
requirements.
For engines less than 225 cc displacement, Category
C = 125 hours, B = 250 hours, and A = 500 hours.
For engines 225 cc or more, Category C = 250 hours,
B = 500 hours, and A = 1000 hours.
Section 1 — General Information
GH - 410 Engine
SERVICE INFORMATION
Service on this engine within and after the warranty
period can be performed by any authorized service
dealer. Service technicians are factory trained and
capable of handling all service needs.
When contacting an authorized service dealer or the
factory about parts and service, always supply the
complete model number and serial number of the
unit as given on its data plate decal.
The warranty for this engine are included in the
owner’s manual.
Generac Corporation
Eng. Identif. No. XXXXXX
Displacement XXXXXX
Decal
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