GB
4
Maintenance (see figs. ¥¦§¨)
Also, see Maintenance Schedule, next page. Follow
the hourly or calendar intervals, whichever occur first.
More frequent service is required when operating in
adverse conditions.
To prevent acci-
dental starting, re-
move spark plug
wire ➊ and ground
it before servicing.
CAUTION:If engine must be tipped to transport equip-
ment or to inspect or remove grass, keep spark plug
side of engine up
. ➋
T ransporting or tipping engine spark plug down may cause:
1. Smoking,
2. Hard starting,
3. Spark plug fouling,
4. Oil saturation of air filter.
Oil service (see fig.
¥)
Check oil level regularly.
Be sure correct oil level is maintained. Check every 5
hours or daily, before starting engine. See oil filling
procedure, Oil Recommendations.
Change oil.
Change oil after first 5 hours of operation. Change oil while
engine is warm. Refill with new oil of recommended SAE
viscosity grade. (see fig.
©)
Before tipping engine or equipment to
drain oil, drain fuel from tank by
running engine until fuel tank is empty .
If draining oil f rom top of engine, k eep spark plug
➋
side up.
By removing drain plug
➌ with a ratchet and square
extension ➍, oil can be drained from engine bottom.
Air cleaner service (see fig.
¦)
Replace Oil-Foam element if very dirty or damaged.
• Remove screw.
• Carefully remove air cleaner to prevent debris from falling
into carburetor.
• Take air cleaner apart and clean all parts. Wash
Oil-Foam element
➊ in liquid detergent and water.
Squeeze dry in a clean cloth. Saturate
Oil-Foam
element in engine oil and squeeze in a clean cloth to
remove excess oil.
• Install Oil-Foam element and cup, if equipped, in body.
Note: On Style 2 air cleaner
➋, install element so lip extends
over edge of body to form protective seal when cover is
assembled.
• Install air cleaner securely on carburetor with screw.
Maintenance Cont’d
Spark plug service (see fig. §)
DO NOT check
or spark with
spark plug removed. Use
only Briggs & Stratton Spark
Tester
➊, to check for spark.
DO NOT crank engine with spark plug removed. If
engine is flooded, place throttle in FAST and crank until
engine starts.
Spark plug gap
➋ should be .76 mm or 0.030 in.
Replace spark plug every 100 hours or every season,
whichever occurs first. Spark plug wrench is available
from any Authorized Briggs & Stratton Service Dealer.
Note: In some areas, local law requires using a resistor
spark plug to suppress ignition signals. If this engine
was originally equipped with resistor spark plug, use
same type of spark plug for replacement.
Keep engine clean (see fig.
¨)
Periodically remove grass and chaff build-up from
engine. Clean finger guard ➊. Do not spray engine with
water to clean because water could contaminate fuel.
Clean with a brush or compressed air.
ccumulation o
debris around mu
-
fler ➎ could cause a fire. Inspect and
clean before every use.
If muffler is equipped with spark arrester screen
➋,
remove spark arrester screen for cleaning and inspec-
tion. Replace if damaged.
Clean cooling system. Grass or chaff may clog engine’s
air cooling system, especially after prolonged service
cutting tall, dry grass. Internal cooling fins and surfaces
may require cleaning to prevent overheating and
engine damage.
Remove 3 screws
➌ and lift blower housing to clean
areas within heavy line
➍.
Do not loosen 2 band brake bracket screws ➎.
Do not bend or remove flywheel guard ➏.
Maintenance Schedule
Follow the hourly or calendar intervals, whichever
occur first. More frequent service is required when
operating in adverse conditions noted below.
First 5 Hours
D Change oil
Every 5 hours or daily
D Check oil level
D Clean finger guard
D Clean around muffler
Every 25 hours or every season
D Change oil if operating under heavy load or
high ambient temperature
D Service air cleaner Oil-Foam element*
Every 50 hours or every season
D Change oil
D Inspect spark arrester, if equipped.
Every 100 hours or every season
D Clean cooling system*
D Replace spark plug
* 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
Briggs & Stratton (or
equivalent)
Part
Part No.
Oil (20 oz.) 100005........................
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) 999005E (5041)
Oil-Foam air cleaner element 698369.........
Oil-Foam 272235 (5047)...................
air cleaner element used with cup
Resistor spark plug 802592E.................
Standard spark plug 492167E................
Long life platinum spark plug 992041 (5062)......
(used on most L-head engines)
Spark tester 19368........................
Spark plug wrench 89838 (5023)..............
Spark arrester 398067......................
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