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Document: - page 13 (Black)
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13
MAINTENANCE
ENGINE AND ENGINE PARTS
We recommend that you see an authorized Briggs & Stratton Service Dealer for all maintenance and service of the engine
and engine parts. Use only genuine Briggs & Stratton parts.
WARNING
• Do not strike the flywheel with a hammer or hard object because the flywheel may later
shatter during operation.
• Do not tamper with governor spring, links or other parts to increase engine speed.
ALWAYS disconnect spark plug, de-energize starter, lock and remove safety key BEFORE
performing ANY service to the engine or mower. Traumatic amputation or severe laceration
can result.
FUEL SYSTEM
Replacement parts for fuel
system (cap, hoses, tanks,
filters, etc.) must be the same
as original parts, otherwise
fire can occur.
WARNING
REPLACE FUEL FILTER (IF EQUIPPED)
PART NO. 298090
OR 5018
FUEL FILTER
FUEL HOSE CLAMPS
[1] Disconnect spark plug
wire and keep away from
spark plug. De-energize
starter. Lock and remove
safety key.
WARNING
[2] Drain fuel tank or close fuel shut-off valve before
replacing fuel filter. Otherwise, fuel can leak out,
creating a fire/explosion hazard.
MUFFLER
Replacement parts for the
muffler must be the same and
installed in the same position
as the original parts, other-
wise fire can occur.
If muffler is equipped with
spark arrester screen, re-
move screen for inspection. Replace screen if damaged or
plugged.
WARNING
SPARK PLUG
Use only Briggs & Stratton Spark Tester (part number
19368) to check for spark.
Note: In some areas, local
law requires using resistor
spark plug to suppress igni-
tion signals. If this engine
was originally equipped with
resistor spark plug, use same
type for replacement.
.020” (0.51 mm)
WIRE GAGE
RESISTOR P/N 802592
STANDARD P/N 492167
COMBUSTION DEPOSITS
We recommend that after every 100-300 hours you have
an authorized Briggs & Stratton Service Dealer remove
combustion deposits from the cylinder, cylinder head, top
of piston, and around valves.
AIR COOLING SYSTEM
We recommend that after every 100 hours you have an
authorized Briggs & Stratton Service Dealer clean the air
cooling system.
Over time debris may accumulate in cylinder cooling fins
and cannot be observed without partial engine disassem-
bly. For this reason, we recommend that you have an
authorized Briggs & Stratton Service Dealer clean the air
cooling system per recommended intervals. Equally impor-
tant is to keep top of engine free from debris.
VALVE CLEARANCE
Check valve clearance yearly. (See Tune-up Specifications
on page 16.)