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Maintenance Schedule
Follow the hourly or calendar intervals, whichever
occur first. More frequent service is required when
operating in adverse conditions noted below.
First 8 Hours
D Change oil
Every 8 hours or daily
D Check oil level
D Clean around muffler, linkage and springs
Every 25 hours or every season
D Change oil if operating under heavy load or
high ambient temperature
D Replace air cleaner pre‐cleaner*
Every 50 hours or every season
D Change oil
D Clean Extended Life Series™ air cleaner
cartridge.*
D Clean and inspect spark arrester, if equipped
Every 100 hours or every season
D Service air cleaner cartridge*
D Replace oil filter, if equipped
D Clean cooling system*
Every 200 hours or every season
D Replace Extended Life Series™ air cleaner
cartridge*
Every season
D Replace spark plugs
D Replace in‐line fuel filter
D Check valve clearance
* Clean more often under dusty conditions, or
when airborne debris is present or after
prolonged operation cutting tall, dry grass.
Partial List of Genuine Briggs & Stratton Parts
Part
Part No.
Oil (20 oz.) 100005. . . . . . . . . . . . . . . . . . . . . . . .
Oil (48 oz.) 100028. . . . . . . . . . . . . . . . . . . . . . . .
Extended Life Series™ Oil filter 696854. . . . . . . . .
Oil filter (6 cm long) 492932 ‐or‐ 5049. . . . . . . . . . .
Oil pump kit (uses standard electric drill 5056. . . . .
to remove oil from engine quickly)
Fuel stabilizer (1 oz., 30 ml single use pouch) 992030
Fuel stabilizer (4.2 oz., 125 ml bottle) 5041. . . . . . .
Fuel filter 493629. . . . . . . . . . . . . . . . . . . . . . . . .
Oval Air cleaner cartridge 792105. . . . . . . . . . . . . .
Extended Life Series™ air cleaner cartridge 695667
Air cleaner cartridge 499486. . . . . . . . . . . . . . . . .
Air cleaner pre‐cleaner 273638. . . . . . . . . . . . . . .
Resistor spark plug 691043 ‐or‐ 491055. . . . . . . . .
Long life platinum spark plug 5066. . . . . . . . . . . . .
(used on most OHV engines)
Spark tester 19368. . . . . . . . . . . . . . . . . . . . . . . .
Spark plug wrench 19374. . . . . . . . . . . . . . . . . . .
Storage
Engines stored over 30 days need to be protected or
drained of fuel to prevent gum from forming in fuel
system or on essential carburetor parts.
For engine protection, we recommend use of Briggs &
Stratton Fuel Stabilizer available from an Authorized
Briggs & Stratton Service Dealer. Mix stabilizer with fuel
in fuel tank or storage container. Run engine for a short
time to circulate stabilizer through carburetor. Engine
and fuel can be stored up to 24 months.
Note: If stabilizer is not used or if engine is operating on
gasoline containing alcohol, e.g. gasohol, remove all fuel
from tank and run engine until it stops from lack of fuel.
1. Change oil. See Oil service. (see figs.
)
2. Remove spark plugs and pour about 30 ml (1 oz)
of engine oil into cylinders. Replace spark plugs
and crank slowly to distribute oil.
3. Clean grass/chaff from cylinders and cylinder
head fins and behind muffler.
4. Store in a clean and dry area, but NOT near a
stove, furnace or water heater which uses a pilot
light or any device that can create a spark.
Service
See an Authorized Briggs & Stratton Service Dealer.
Each one carries a stock of Genuine Briggs & Stratton
Parts and is equipped with special service tools.
Trained mechanics assure expert repair service on all
Briggs & Stratton engines. Only dealers advertising as
“Authorized Briggs & Stratton” are required to meet
Briggs & Stratton standards.
When you purchase equipment pow‐
ered by a Briggs & Stratton engine, you
are assured of highly skilled, reliable
service at more than 30,000 Authorized
Service Dealers worldwide, including
more than 6,000 Master Service Techni‐
cians. Look for these signs wherever
Briggs & Stratton service is offered.
You may locate your nearest Authorized Briggs & Stratton
Service Dealer in our dealer locator map on our web site
www.briggsandstratton.com or in the “Yellow
Pages™” directory under “Engines, Gasoline”
or “Gasoline Engines,” or “Lawn Mowers” or
similar category.
™
Note: Walking fingers logo and “Yellow Pages” are
registered trademarks in various jurisdictions.
An illustrated shop manual includes “Theories of
Operation,” common specifications and detailed
information covering adjustment, tune‐up and repair of
Briggs & Stratton V‐twin cylinder OHV, 4 cycle engines.
Order P/N 273521 from an Authorized Briggs &
Stratton Service Dealer.
Insistā on Genuine Briggs & Stratton replacement parts
with our logo on the box and/or part. Non‐original parts
may not perform as well and may void your warranty.