Fuel Recommendations; Maintenance - Briggs & Stratton 21000 fource Betriebsanleitung

Note: Engine holds approximately 90 ml (3 oz).
2. To check oil level, remove dipstick and wipe clean with cloth. Replace dipstick
and tighten down.
3. Remove and check oil level. Level should be at FULL mark.
4. Verify FULL level of oil by the presence of oil in hole on dipstick, or by measure
line.
5. If oil is required, add 15 ml (0.5 oz) oil at a time. Recheck level.

FUEL RECOMMENDATIONS

Do not mix oil with gasoline.
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.
This engine is certified to operate on gasoline. Exhaust Emission Control System:
EM (Engine Modifications).
Do not use gasoline which contains Methanol.
For engine protection, we recommend using Briggs & Stratton Fuel Stabilizer
available from an Authorized Briggs & Stratton Service Dealer.
Fig. 3
ADDING FUEL
Tilt engine at angle shown to properly refuel. Clean around fuel fill before removing
cap. Fill tank to approximately 1-1/2 inches below top of neck
expansion. Be careful not to overfill.
WARNING
Before refueling, allow engine to cool 2 minutes.
STARTING
Fig. 4
CAUTION: Check oil level before starting engine. Oil level should be at Full
mark on dipstick before starting engine. If started without oil, engine damage will
occur.
Ê
primer bulb 15 times FOR NEW ENGINE, 8 times for all consecutive
1. Push
starts.
Ë
2. Red choke lever should be in the FULL CHOKE
3. If equipped with a throttle, hold throttle on, or place in FULL position. If engine is
still warm from previously running, do not hold down throttle.
Í
4. Pull starter handle sharply until engine runs.
5. Wait for 10 seconds, then move choke lever to HALF CHOKE
6. Run the engine at HALF CHOKE for 20 seconds or until unit accelerates
smoothly. Move choke to OFF
longer warm-up period on HALF CHOKE.)
CAUTION: Operating engine at an excessive speed without proper engine
loading will cause damage. Engines used on pump applications, ALWAYS prime
pump before starting the engine. Never run pump with out priming.
STOPPING
Ð
• Depress stop switch
on engine or equipment to stop engine.
WARNING
DO NOT close choke to stop engine. Backfire, fire may emit and cause injury.
Ë
Ê
to allow for fuel
Ì
position.
Î
Ï
position. (Colder temperatures will require a

MAINTENANCE

Fig. 5
Regular maintenance improves performance and extends engine life. More frequent
service is required when operating in adverse conditions.
Need assistance? Go to www.briggsandstratton.com.
Do not strike the flywheel with hammer or hard object. If done, the flywheel
may shatter during operation.
Do not tamper with links or other parts to increase engine speed.
Follow the hourly or calendar intervals, whichever occur first. More frequent
service is required when operating in adverse conditions noted below.
Before Every Use
D Check oil level
First 4 Hours
D Change oil
Every 8 Hours or Every Season
D Change oil
D Service air cleaner *
Every 50 Hours or Every Season
D Replace spark plug **
*
Clean more often under dusty conditions, or when airborne debris is present or
after prolonged operation cutting tall, dry grass.
On string trimmer applications:
clean debris at each refueling, sooner if needed;
have qualified technician clean air cooling system every 30 hours, every
season, sooner if needed, especially in high debris conditions.
**
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.
Fig. 6
CHANGING OIL & CHECKING OIL LEVEL
1. Change oil while the engine is warm, ensure fuel cap is tightened securely.
2. Remove dipstick, and drain oil
3. Place engine level. Using oil measure cup pour oil slowly adding 15 ml (0.5 oz)
Ë
at a time . Do not overfill.
Note: Engine holds approximately 90 ml (3 oz).
4. To check oil level, remove dipstick and wipe clean with cloth. Replace dipstick
and tighten down.
5. Remove and check oil level. Level should be at FULL mark.
presence of oil in hole on dipstick, or by measure line.
position.
6. If oil is required, add 15 ml (0.5 oz) oil at a time. Recheck level.
7. Replace dipstick tightly before starting engine.
Fig. 7 AIR CLEANER MAINTENANCE
Replace Oil-Foam element if very dirty or damaged.
Ê
• Push cover tab
air filter.
• Check and clean the intake chamber
• Wash Oil-Foam element
cloth. Saturate Oil-Foam element in engine oil and squeeze in a clean cloth to
remove excess oil.
• Engine will smoke if too much oil is left on filter.
CAUTION: Do not use pressurized air or solvents to clean. Pressurized air can
damage filter; solvents will dissolve filter.
3
WARNING
To prevent accidental starting, disconnect spark
plug wire Ê and keep it away from spark plug
before servicing.
WARNING
Ê
in direction shown.
to release cover, then pull cover away from engine to service
Ë
for dirt.
Ì
in liquid detergent and water. Squeeze dry in a clean
Ì
Verify by the