GB
5
CHANGING ENGINE OIL
- SEE FIGURE
7
Change oil after first 8 hours o f operation.
1. Change oil while engine is warm.
2. Remove oil drain plug to drain oil.
3. Refill with new oil of recommended SAE viscosity grade.
4. Fill to FULL mark on dipstick.
OIL FILTER , IF EQUIPPED.
Replace oil filter after every 100 hours of operation or every season, whichever
occurs first.
1. Before installing new filter, lightly oil filter gasket with fresh, clean engine oil.
2. Screw filter on by hand until gasket contacts oil filter adapter. Tighten 1/2 to
3/4 turn more.
3. Refill engine with new oil of recommended SAE viscosity grade. See Adding
Oil under OIL RECOMMENDATIONS for procedure.
4. Start and run engine at IDLE to check for oil leaks.
5. Stop engine. Recheck oil level and add oil if required.
OIL PRESSURE
If oil pressure drops below 1-4 p si (.1-.2 kg/cm
2
), an oil pressure switch (if engine
is equipped) will either activate a warning device or stop the engine. Check oil
level with dipstick. If oil level is between ADD and FULL mark on dipstick, do
not
try to restart engine
. Contact an Authorized Briggs & Stratton Service Dealer. Do
not operate engine until oil pressure is corrected
.
If oil level is below ADD mark on dipstick, add oil to bring lev el to FULL mark.
Restart engine and check oil pressure. If pressure is normal, continue to operate
engine.
Note: Oil pressure gauge, if engine is equipped, is supplied by
manufacturer of equipment.
AIR CLEANER, DUAL ELEMENT
- SEE FIGURE
8
1. Unhook clips on sides of cover and remove cover.
2. Carefully slide pre-cleaner
off cartridge
.
3. Remove knob
and plate
. Carefully remove cartridge to prevent debris
from entering carburetor
.
To service cartridge, clean by tapping gently on a flat surface. Replace
pre-cleaner, if equipped, or cartridge if very dirty or damaged.
CAUTION: Do not use petroleum solvents, e.g., kerosene, which will cause
cartridge to deteriorate. Do not use p ressurized air, which can damage
cartridge. Do not oil cartridge.
4. Reinstall c artridge, plate and knob.
5. Reassemble pre-cleaner on cartridge.
6. Replace cover and fasten clips.
SPARK PLUG
- SEE FIGURE
9
DO NOT check for spark with spark plug removed.
WARNING
Use only Briggs & Stratton Spark Tester, to check for spark.
• If engine is flooded, place throttle in FAST and crank until engine starts.
• The electrodes on the spark plug must be clean and sharp to p roduce the
powerful spark required for ignition. If the spark plug is worn or dirty the
engine will be hard to start.
• Ensure spark plug gap
is 0.76 mm or 0.030 in.
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.
FUEL FILTER
- SEE FIGURE
10
Replace in-line fuel filter
every season.
WARNING
Drain fuel tank or close fuel shut-off valve before replacing filter.
VALVE CLEARANCE
Gasoline Engines -
Check valve clearance yearly (intak e and exhaust .10-.15 mm).
LPG / NG Engines -
Valve clearance must be checked a fter every 100 hours of operation. Adjust if
necessary .
MUFFLER
- SEE FIGURE
10
WARNING
Accumulation of debris around exhaust manifold/muffler
could cause a
fire. Inspect and clean before every use.
If muffler i s equipped with spark arrester s creen
, remove spark a rrester s creen for
cleaning and inspection every 5 0 hours o r every s eason. Replace if damaged.
CLEANING DEBRIS
- SEE FIGURE
10
Periodically remove grass/chaff buildup from engine.
Remove oil cooler to clean debris.
Grass or chaff may clog engine’s air cooling system, especially after prolonged
service cutting tall, dry grass. Every 100 hours or every season, clean internal
cooling fins and surfaces to prevent overheating and engine damage. Remove
blower housing to clean areas shown
.
Keep linkage, springs and controls free of debris.
CAUTION:
DO NOT use water to clean engine parts. Water could contaminate fuel system.
Use a brush or dry cloth.
