FUEL RECOMMENDATIONS

THE GASOLINE ENGINE IS CERTIFIED TO OPERATE ON GASOLINE. Exhaust Emission Control Sys- tem: EM (Engine Modifications).

Use clean, fresh, lead-free gasoline with a minimum of 85 octane. Leaded gasoline may be used if it is commercially available and if unleaded is unavailable. Purchase fuel in quantity that can be used within 30 days. See Storage.

In U.S.A. leaded gasoline may not be used. Some fuels, called oxygenated or reformulated gasolines, are gasolines blended with alcohols or ethers. Excessive amounts of these blends can damage the fuel system or cause performance problems. If any undesirable operating symptoms occur, use gasoline with a lower percentage of alcohol or ether.

Do not use gasoline which contains Methanol. Do not mix oil with gasoline.

Check fuel level

WARNING

•Before refueling, allow engine to cool 2 minutes.

Clean around fuel fill before removing cap to refuel. Fill tank to approximately 1-1/2 inches below top of neck to allow for fuel expansion. Be careful not to overfill.

STARTING

WARNING

ALWAYS KEEP HANDS AND FEET

CLEAR OF EQUIPMENT MOVING

PARTS.

WARNING

•Do not use pressurized starting fluid. Vapors are flammable.

Check oil level.

Open fuel shut-off valve, if equipped.

OIL GARD

If engine is equipped with OIL GARD, and if engine runs low on oil and cannot be started or has stopped and cannot be restarted, add oil. Fill to FULL mark on dipstick. Do not over-fill.

CAUTION: OIL GARD will shut down a running engine. Engine damage may occur if oil level is not properly maintained and will void warranty cover- age.

STARTING

Fig. 3

1.Move choke control Ê to CHOKE position.

2.Move throttle control Ë to FAST position.

3.Turn on fuel shut-off valve Ì.

4.Move stop control Í to ON position, if equipped.

Rewind starter

WARNING

•Grasp rope handle and pull slowly until resistance is felt. Then pull cord rapidly to overcome compression, prevent kickback and start engine.

Repeat if necessary with choke in RUN position and throttle in FAST. When engine starts, operate in FAST position.

Electric starter, if equipped

Turn key Î to START position. Repeat if necessary with throttle control in FAST position. When engine starts, operate in FAST position.

Note: If equipment manufacturer has supplied battery, charge it before trying to start engine, as equipment manufacturer recommends.

Note: Use short starting cycles (15 secs. per min.) to prolong starter life. Extended cranking can damage starter motor.

STOPPING

Fig. 3

Do not move choke control to CHOKE position to stop engine. Backfire or engine damage may occur. Move throttle control Ï to IDLE or SLOW position, if equipped. Then turn key Ð to OFF or move stop control Ñ to OFF position. Close fuel shut-off valve Ò.

Note: Always remove key from switch when equipment is not in use or left unattended.

Note: When engine is transported, close fuel shut-off valve to prevent leakage.

MAINTENANCE

Fig. 4

WARNING

•To prevent accidental starting, remove spark

plug wire Ê and ground it before servic- ing,and disconnect battery at negative terminal, if equipped.

See Maintenance Schedule. Follow the hourly or calendar intervals, whichever occur first. More frequent service is required when operating in adverse conditions.

Oil service

Fig. 2

Check oil level regularly.

Be sure correct oil level is maintained. Check every 8 hours or daily, before starting engine. See oil filling procedure under 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.

Air cleaner service

Fig. 6

Replace pre-cleaner Ë, and/or cartridge Ì if very dirty or damaged.

1.Loosen screws. Remove cover and air cleaner assembly from base.

2.Remove cartridge retainer Í, (if equipped) and pre-cleaner.

To service pre-cleaner, wash in liquid detergent and water. Squeeze dry in a clean cloth. Saturate in engine oil. Squeeze in clean, absorbent cloth to remove ALL EXCESS oil.

To service cartridge, clean by tapping gently on a flat surface. Do not use petroleum solvents, e.g., kero- sene, which will cause cartridge to deteriorate. Do not use pressurized air, which can damage cartridge. Do not oil cartridge.

3.Reinstall pre-cleaner on retainer, if equipped.

4.Install pre-cleaner in cover with mesh side toward cartridge. Install cartridge in cover or on base.

5.Seat cover and air cleaner assembly squarely onto base (tabs Î into slots Ï, if equipped).

6.Tighten cover screws securely.

Check valve clearance:

intake is .05 mm and exhaust .10 mm.

Spark plug service

Fig. 5

WARNING

•DO NOT check for spark with spark plug removed. Use only Briggs & Stratton Spark Tester Ë, 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 Ì should be .76 mm or 0.030 in.

Replace spark plug every 100 hours or every season, whichever occurs first. Spark tester and spark plug wrench are 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

Fig. 7

Periodically remove chaff and debris build-up from engine. Do not spray engine with water to clean because water could contaminate fuel. Clean with a brush or compressed air.

To assure smooth operation, keep governor linkage, springs and controls free of debris Ë.

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