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 If you perform any maintenance on the engine, first disconnect the spark plug wire
from the spark plug, and disconnect the battery at the negative terminal (electric
starter engines only) to prevent unintentional sparking. Unintentional sparking can
result in fire or electric shock. Unintentional start-up can result in entanglement,
traumatic amputation or laceration. Use only correct tools.
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.
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 arrestor 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
ignition signals. If this en-
gine was originally
equipped with resistor
spark plug, use same type
for replacement.
.030” (0.76 mm)
WIRE GAGE
RESISTOR P/N 802592
STANDARD P/N 492167
Note: On Model Series 19E400, 19F400, 19G400 engines
use only spark plug, Part No. 496018.

AIR COOLING SYSTEM

CLEAN
OUT
DEBRIS
AND
CHAFF
We recommend
cleaning the air
cooling system
every 100 hours.

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.

CLEANING DEBRIS

CAUTION: Do not use water to clean engine parts.
Water could contaminate fuel system. Use a brush
or dry cloth.
Engine parts should be kept
clean to reduce the risk of
overheating and ignition of
accumulated debris.
WARNING
Finger Guard Linkage, Springs, Controls Muffler, Spark Arrester
Daily or before every use, clean
accumulated debris from engine.
Keep linkage, spring and controls
clean. Keep area around and
behind muffler free of any com-
bustible debris.
CLEAN SPARK
ARRESTER
CLEAN
CLEAN